Heat exchanger dust removal device and vehicle-mounted air conditioner

Abstract

The utility model provides a heat exchanger dust removal device and a vehicle-mounted air conditioner, and relates to the technical field of vehicle-mounted air conditioning equipment, the heat exchanger dust removal device comprises an air source, an air ejector pipe and a timer; the gas source is used for outputting high-pressure gas; the gas ejector pipe surrounds the heat exchanger and communicates with a gas source, and a plurality of gas outlets are formed in the side, facing the heat exchanger, of the gas ejector pipe; the timer is electrically connected with the air source and used for controlling the working time of the air source. The heat exchanger dust removal device can achieve regular automatic dust removal of the heat exchanger in the vehicle-mounted air conditioner, manual cleaning is not needed, and the dust removal efficiency is high; meanwhile, the structure is simple, use is convenient, the use and maintenance cost of the heat exchanger can be reduced, and good practical value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted air-conditioning equipment, and in particular to a heat exchanger dust removal device and a vehicle-mounted air-conditioner. Background Art

[0002] In the vehicle air conditioning system, the heat exchanger is used to condense the high-temperature and high-pressure refrigerant gas discharged from the compressor into refrigerant liquid through heat exchange with the air. When the vehicle working environment is harsh, dust in the air will gradually adhere to the surface and gaps of the heat exchanger, causing the heat exchange capacity of the heat exchanger to decrease, which will lead to excessive pressure and overheating of the vehicle air conditioning system, and poor overall cooling effect; at the same time, it will increase the load on the compressor and various components, affecting the service life of the air conditioner.

[0003] At present, heat exchangers are generally disassembled and dusted manually at regular intervals to ensure the normal operation of the heat exchanger. However, manual cleaning has short intervals, is time-consuming and labor-intensive, has low efficiency, and is costly. Utility Model Content

[0004] The technical problem solved by the utility model is that the existing manual cleaning method of the heat exchanger has low cleaning efficiency and high cost.

[0005] In order to solve the above problems, on the one hand, the utility model provides a heat exchanger dust removal device, including an air source, an injection pipe and a timer: the air source is used to output high-pressure gas; the injection pipe is arranged around the heat exchanger and is connected to the air source, and a plurality of air outlet holes are provided on the side of the injection pipe facing the heat exchanger; the timer is electrically connected to the air source for controlling the working time of the air source.

[0006] Optionally, the jet pipe includes a main pipeline and multiple branch pipelines; the main pipeline is connected to the gas source; one end of each branch pipeline is connected to the main pipeline and is rotatably connected to the main pipeline, and each branch pipeline is provided with at least one air outlet on the side facing the heat exchanger; the heat exchanger dust removal device also includes a driving mechanism, which is transmission-connected to the branch pipeline and is used to drive the branch pipeline to rotate relative to the main pipeline.

[0007] Optionally, a plurality of the branch pipes are arranged in parallel and spaced apart to form a group, at least one group of the branch pipes is provided, and each group of the branch pipes is connected to a corresponding driving mechanism.

[0008] Optionally, the driving mechanism includes a synchronous belt mechanism and a rotating motor; each two adjacent branch pipelines in the same group are connected by a synchronous belt mechanism; the output end of the rotating motor is connected to any branch pipeline by the synchronous belt mechanism.

[0009] Optionally, the driving mechanism includes a main rod, multiple connecting rods and a telescopic motor; the multiple connecting rods are arranged in one-to-one correspondence with the multiple branch pipelines in the same group, one end of each connecting rod is fixedly connected to the corresponding branch pipeline, and the other end is hinged to one end of the main rod; the output end of the telescopic motor is connected to the main rod.

[0010] Optionally, the heat exchanger (60) is an automobile air-conditioning heat exchanger, the main pipe comprises a first main pipe, a second main pipe and a third main pipe, the first main pipe, the second main pipe and the third main pipe are all arranged to extend along the edge of the heat exchanger, the first main pipe and the second main pipe are arranged opposite to each other, and the third main pipe connects the first main pipe and the second main pipe; the branch pipes are provided with two groups, one group of the branch pipes is provided on the side of the first main pipe facing the second main pipe, and the other group of the branch pipes is provided on the side of the second main pipe facing the first main pipe.

[0011] Optionally, the heat exchanger (60) is an automobile air-conditioning heat exchanger, and the main pipeline and the branch pipeline are arranged in the same plane parallel to the plane where the heat exchanger is located.

[0012] Optionally, the branch pipeline is rotatably connected to the main pipeline via a bearing.

[0013] Optionally, the gas source is one of a booster air pump, a compressed air machine and a gas cylinder.

[0014] On the other hand, the utility model also provides a vehicle-mounted air conditioner, comprising a heat exchanger and the heat exchanger dust removal device as described in any one of the above items.

[0015] The heat exchanger dust removal device and the vehicle air conditioner of the utility model can perform high-pressure gas blowing and dust removal on the surface of the heat exchanger by arranging an air source and an air jet pipe, and can realize regular automatic dust removal of the heat exchanger by setting a timer, without the need for manual cleaning, and the dust removal efficiency is high; at the same time, the heat exchanger dust removal device has a simple structure and is easy to use, which can reduce the use and maintenance costs of the heat exchanger and has good practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a heat exchanger dust removal device in one direction according to an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the middle jet pipe in another direction;

[0018] Figure 3 It is a schematic structural diagram of a heat exchanger dust removal device in one direction according to another embodiment of the utility model;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure of the dust removal device of the heat exchanger in another direction;

[0020] Figure 5 This is a schematic structural diagram of a heat exchanger dust removal device in one direction according to another embodiment of the utility model;

[0021] Figure 6 for Figure 5 A schematic diagram of the structure of the dust removal device of the heat exchanger in another direction;

[0022] Figure 7 This is a schematic diagram of the disassembled structure of a vehicle air conditioner according to an embodiment of the utility model;

[0023] Figure 8 for Figure 7 Schematic diagram of the structure of the vehicle air conditioner from another direction.

[0024] Description of reference numerals:

[0025] 10-gas source; 20-jet pipe; 21-main pipe; 211-first main pipe; 212-second main pipe; 213-third main pipe; 22-branch pipe; 221-air outlet; 30-timer; 41-synchronous belt mechanism; 411-pulley; 412-belt; 42-rotating motor; 51-main rod; 52-connecting rod; 53-telescopic motor; 60-heat exchanger. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] It should be noted that in the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The manual cleaning method for dust removal of heat exchangers in the prior art has the problems of low cleaning efficiency and high cost.

[0030] To solve the above technical problems, please refer to Figure 1 and Figure 2 An embodiment of the utility model provides a heat exchanger dust removal device, including an air source 10, an air injection pipe 20 and a timer 30.

[0031] The gas source 10 is used to output high-pressure gas; the jet pipe 20 is arranged around the heat exchanger 60 and is connected to the gas source 10. The jet pipe 20 is provided with a plurality of air outlets 221 on the side facing the heat exchanger 60 for blowing toward the surface of the heat exchanger 60; the timer 30 is electrically connected to the gas source 10 and is used to control the working time of the gas source 10. In this way, the high-pressure gas output by the gas source 10 enters the jet pipe 20 and then flows out through the plurality of air outlets 221, which face the heat exchanger 60, so that the high-pressure gas can blow against the surface of the heat exchanger 60 to remove dust on the surface of the heat exchanger 60. The timer 30 can be controlled by the controller of the air-conditioning system. Whenever the air-conditioning system works for a preset period of time, the timer 30 controls the air pump to start and purge the heat exchanger 60. After a period of purge, the air pump is controlled to shut down to complete a dust removal operation. After the air-conditioning system works again for the aforementioned preset period of time, the timer 30 controls the air pump to start and perform the next dust removal operation, thereby realizing regular dust removal of the heat exchanger 60 and ensuring that the heat exchanger 60 always has a good heat exchange effect.

[0032] The heat exchanger dust removal device of the embodiment of the utility model can realize regular automatic dust removal of the heat exchanger 60 without manual cleaning, and has high dust removal efficiency; at the same time, it has a simple structure and is easy to use, which can reduce the use and maintenance costs of the heat exchanger 60 and has good practical value.

[0033] Specifically, the injection pipe 20 may include a main pipeline 21 and multiple branch pipelines 22, wherein the main pipeline 21 is connected to the gas source 10, one end of each branch pipeline 22 is connected to the main pipeline 21 and is rotatably connected to the main pipeline 21, and each branch pipeline 22 is provided with at least one air outlet 221 on the side facing the heat exchanger 60; the heat exchanger driving device of this embodiment also includes a driving mechanism, which is transmission-connected to the branch pipeline 22 and is used to drive the branch pipeline 22 to rotate relative to the main pipeline 21.

[0034] It can be understood that the main pipeline 21 serves as a connection between the gas source 10 and the branch pipeline 22. The air outlet 221 on the branch pipeline 22 blows out high-pressure gas to purge the heat exchanger 60. In order to avoid the existence of a gap between the branch pipelines 22, which causes the dust in the part of the heat exchanger 60 corresponding to the gap to be unable to be purged, the branch pipeline 22 and the main pipeline 21 are rotatably connected. The rotatable connection here means that the relative position of the branch pipeline 22 and the main pipeline 21 remains unchanged, and the branch pipeline 22 can rotate with its own axis as the central axis. In this way, when the branch pipeline 22 rotates, the purge angle of the air outlet 221 toward the heat exchanger 60 can be changed, so that the airflow blown out of the air outlet 221 can purge the part of the heat exchanger 60 located within a certain range on one side of the branch pipeline 22, thereby increasing the dust removal area of ​​each branch pipeline 22. By setting multiple branch pipelines 22 to cooperate with each other, large-area dust removal of the heat exchanger 60 can be achieved. The driving mechanism is used to drive the branch pipe 22 to rotate, and to control the rotation angle and rotation speed of the branch pipe 22 .

[0035] Preferably, a plurality of branch pipes 22 are arranged in parallel and spaced apart to form a group, and at least one group of branch pipes 22 is provided, and each group of branch pipes 22 is correspondingly provided with a driving mechanism for connection. In this way, by arranging the branch pipes 22 in the same group in parallel and spaced apart, the rotation axes of the plurality of branch pipes 22 are parallel, so that it is convenient to drive the plurality of branch pipes 22 in the same group to rotate synchronously by a driving mechanism, which is lower in cost and more convenient to control than the method of providing a driving mechanism for each branch pipe 22. Due to the internal structure and space limitations of the air conditioner, the spacing distance between the plurality of branch pipes 22 in the same group can be adjusted accordingly; similarly, when only one group of branch pipes 22 is provided and the heat exchanger 60 cannot be fully purged, multiple groups of branch pipes 22 can be provided according to the internal structure of the air conditioner, and each group of branch pipes 22 is provided with a driving mechanism to adjust the rotation of the branch pipes 22.

[0036] See also Figure 3 and Figure 4In some embodiments, the driving mechanism may include a synchronous belt mechanism 41 and a rotary motor 42. Specifically, two adjacent branch pipelines 22 in the same group are connected by a synchronous belt mechanism 41; the output end of the rotary motor 42 is connected to any branch pipeline 22 by a synchronous belt mechanism 41. Each synchronous belt mechanism 41 may include two pulleys 411 and a belt 412. For two adjacent branch pipelines 22, each branch pipeline 22 is provided with a pulley 411, and the belt 412 is wound around the outer circumference of the two pulleys 411. When one branch pipeline 22 rotates, the other branch pipeline 22 can be driven to rotate by the belt 412. The connection between the branch pipeline 22 and the rotary motor 42 is similar to this. The rotation of the output end of the rotary motor 42 can drive the corresponding connected branch pipeline 22 to rotate. In this way, when the rotary motor 42 is working, it drives the corresponding connected branch pipeline 22 to rotate, and the branch pipeline 22 drives the adjacent connected branch pipeline 22 to rotate, so as to achieve the synchronous rotation adjustment of the branch pipelines 22 in the same group.

[0037] See also Figure 5 and Figure 6 In other embodiments, the driving mechanism may further include a main rod 51, a plurality of connecting rods 52, and a telescopic motor 53. Specifically, the plurality of connecting rods 52 are arranged one by one corresponding to the plurality of branch pipelines 22 in the same group, one end of each connecting rod 52 is fixedly connected to the corresponding branch pipeline 22, and the other end is hinged to one end of the main rod 51; the output end of the telescopic motor 53 is connected to the connecting rod. The main rod 51 is arranged perpendicular to the axial direction of each branch pipeline 22, and is driven to move by the telescopic motor 53 along the extension direction of the main rod 51. When the telescopic motor 53 drives the main rod 51 to move, the main rod 51 drives the end of each connecting rod 52 hinged thereto to swing, and the end of the connecting rod 52 fixedly connected to the branch pipeline 22 drives the branch pipeline 22 to rotate, thereby realizing the synchronous rotation adjustment of the branch pipelines 22 in the same group.

[0038] In this embodiment, the heat exchanger 60 is a heat exchanger for an automobile air conditioner, which is flat as a whole. Considering the internal space structure limitation of the air conditioner, in the embodiment shown, the main pipe 21 includes a first main pipe 211, a second main pipe 212 and a third main pipe 213. The first main pipe 211, the second main pipe 212 and the third main pipe 213 are all arranged corresponding to the edge of the heat exchanger 60 to form a gate-shaped structure, that is, the first main pipe 211, the second main pipe 212 and the third main pipe 213 extend along the three edges of the heat exchanger 60 respectively, the first main pipe 211 and the second main pipe 212 are arranged oppositely, and the third main pipe 213 connects the first main pipe 211 and the second main pipe 212. In this way, sufficient space for the branch pipe 22 to be arranged can be reserved between the first main pipe 211 and the second main pipe 212, and the gate-shaped structure formed by the main pipe 21 is relatively stable and not easy to loosen. The first main pipe 211 and the third main pipe 213, and the second main pipe 212 and the third main pipe 213 can be connected and fixed through pipe connectors, and the main pipe 21 as a whole can be fixed in the air conditioner by bolt connection, clamps, etc., so as to fix the jet pipe 20 as a whole. Two groups of branch pipes 22 can be provided, one group of branch pipes 22 is provided on the side of the first main pipe 211 facing the second main pipe 212, and the other group of branch pipes 22 is provided on the side of the second main pipe 212 facing the first main pipe 211. Correspondingly, two driving mechanisms are provided and drive one group of branch pipes 22 to rotate respectively.

[0039] Of course, in other embodiments, only one group of branch pipes 22 may be provided, and the two ends of each branch pipe 22 are rotatably connected to the first main pipe 211 and the second main pipe 212 respectively; or, more groups of branch pipes 22 may be provided, such as the first main pipe 211 and the second main pipe 212 are arranged correspondingly near the middle of the heat exchanger 60, and both sides of the first main pipe 211 and both sides of the second main pipe 212 are each connected with a group of branch pipes 22, so that four groups of branch pipes 22 are provided. It can be understood that under the guidance of the above embodiments, the injection pipe 20 structure formed by different structural forms of the main pipe 21 and different positions and groups of the branch pipes 22 are all within the protection scope of the present utility model.

[0040] Preferably, the heat exchanger 60 is an automobile air conditioning heat exchanger, which is flat as a whole. The main pipeline 21 and the branch pipeline 22 are in the same plane and the plane is arranged parallel to the plane where the heat exchanger 60 is located, so that the distance between each air outlet 221 and the surface of the heat exchanger 60 is equal, so that the air flow can evenly purge the surface of the heat exchanger 60. The branch pipeline 22 and the main pipeline 21 can be connected by a bearing, so that the branch pipeline 22 can rotate relative to the main pipeline 21 with its own axis direction as the central axis while maintaining the pipeline connection. The gas source 10 can be one of a booster pump, a compressed air machine and a gas cylinder, and can also be other equipment that can generate high-pressure gas. Depending on the vehicle conditions, a suitable gas source 10 can be selected to meet the purge requirements of the heat exchanger 60.

[0041] Also, see Figure 7 and Figure 8 The embodiment of the present invention further provides a vehicle air conditioner, comprising a heat exchanger 60 and the heat exchanger dust removal device of the above embodiment. Since the heat exchanger dust removal device of the present invention adopts all the technical solutions of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be described one by one here.

[0042] In summary, the heat exchanger dust removal device and the vehicle air conditioner of the utility model can blow and remove dust from the surface of the condenser 60 by setting the air source 10 and the jet pipe 20, and can realize regular automatic dust removal of the heat exchanger 60 by setting the timer 30, without the need for manual cleaning, and the dust removal efficiency is high; at the same time, the device has a simple structure and is easy to use, which can reduce the use and maintenance costs of the heat exchanger 60 and has good practical value.

[0043] Although the utility model is disclosed as above, the protection scope of the utility model is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A heat exchanger dust removal device, characterized in that: include: A gas source (10) for outputting high-pressure gas; An air injection pipe (20) is arranged around the heat exchanger (60) and is in communication with the air source (10); a plurality of air outlet holes (221) are provided on a side of the air injection pipe (20) facing the heat exchanger (60); A timer (30) is electrically connected to the gas source (10) and is used to control the working time of the gas source (10).

2. The heat exchanger dust removal device according to claim 1, characterized in that: The jet pipe (20) comprises: A main pipeline (21) is connected to the gas source (10); a plurality of branch pipelines (22), one end of each branch pipeline (22) being in communication with the main pipeline (21) and rotatably connected to the main pipeline (21), and each branch pipeline (22) being provided with at least one air outlet (221) on a side facing the heat exchanger (60); The heat exchanger dust removal device also includes a driving mechanism, which is in driving connection with the branch pipeline (22) and is used to drive the branch pipeline (22) to rotate relative to the main pipeline (21).

3. The heat exchanger dust removal device according to claim 2, characterized in that: A plurality of branch pipes (22) are arranged in parallel and spaced apart to form a group. There is at least one group of branch pipes (22), and each group of branch pipes (22) is connected to a corresponding driving mechanism.

4. The heat exchanger dust removal device according to claim 3, characterized in that: The driving mechanism comprises: A synchronous belt mechanism (41), wherein each of the two adjacent branch pipelines (22) in the same group is connected in transmission via the synchronous belt mechanism (41); A rotating motor (42), wherein an output end of the rotating motor (42) is transmission-connected to any one of the branch pipelines (22) via the synchronous belt mechanism (41).

5. The heat exchanger dust removal device according to claim 3, characterized in that: The driving mechanism comprises: Main rod (51); A plurality of connecting rods (52) are arranged one by one corresponding to the plurality of branch pipelines (22) in the same group, one end of each connecting rod (52) is fixedly connected to the corresponding branch pipeline (22), and the other end is hinged to one end of the main rod (51); A telescopic motor (53), wherein an output end of the telescopic motor (53) is connected to the main rod (51).

6. The heat exchanger dust removal device according to any one of claims 3 to 5, characterized in that: The heat exchanger (60) is an automobile air conditioning heat exchanger, the main pipe (21) comprises a first main pipe (211), a second main pipe (212) and a third main pipe (213), the first main pipe (211), the second main pipe (212) and the third main pipe (213) are all arranged to extend along the edge of the heat exchanger (60), the first main pipe (211) and the second main pipe (212) are arranged opposite to each other, and the third main pipe (213) connects the first main pipe (211) and the second main pipe (212); The branch pipes (22) are provided in two groups, wherein one group of the branch pipes (22) is provided on a side of the first main pipe (211) facing the second main pipe (212), and the other group of the branch pipes (22) is provided on a side of the second main pipe (212) facing the first main pipe (211).

7. The heat exchanger dust removal device according to claim 2, characterized in that: The heat exchanger (60) is an automobile air-conditioning heat exchanger, and the main pipeline (21) and the branch pipeline (22) are arranged in the same plane parallel to the plane where the heat exchanger (60) is located.

8. The heat exchanger dust removal device according to claim 2, characterized in that: The branch pipeline (22) is rotatably connected to the main pipeline (21) via a bearing.

9. The heat exchanger dust removal device according to claim 1, characterized in that: The gas source (10) is one of a booster air pump, a compressed air machine and a gas cylinder.

10. A vehicle air conditioner, characterized in that: It comprises a heat exchanger (60) and a heat exchanger dust removal device according to any one of claims 1 to 9.

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