Air conditioner

Abstract

The present invention belongs to the technical field of air conditioners, and specifically provides an air conditioner. The air conditioner includes a housing, the housing forms an atomization chamber, the atomization chamber has a mist outlet and a water mist generating unit is arranged in the atomization chamber; the housing is provided with an air inlet and an air outlet, and a circulation channel is formed in the housing between the air inlet and the air outlet, and a fan is arranged in the circulation channel; wherein, the mist outlet is communicated with the air inlet and / or the air outlet; and the air inlet and the air outlet are arranged adjacent to each other so as to allow at least a part of the gas flowing out of the air outlet to enter the circulation channel through the adjacent arrangement and the action of the fan through the air inlet. Through such an arrangement, a part of the mixed gas formed after the water mist is mixed with the air enters the circulation channel through the air inlet, and then is further mixed with the air and water mist entering from the air inlet and flows out from the air outlet, solving the problem that the air flow humidity at the air supply outlet is uneven when the existing air conditioner uses a humidification module for humidification, and the user experience is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and specifically provides an air conditioner. Background Art

[0002] With the continuous improvement of people's living standards, air conditioners have become common household appliances in people's lives. In summer, the temperature is high and the air humidity is large in the southern regions, making people's lives very uncomfortable. An air conditioner cools the indoor temperature by absorbing / releasing heat through the refrigerant circulating inside. At the same time, the air conditioner is also provided with a dehumidification mode, and users can make the air conditioner operate in the dehumidification mode to reduce the air humidity, thereby improving the user's comfort. However, in winter, the air humidity is low, and after the air conditioner operates for heating, the humidity of the indoor air will be further reduced, and people also feel uncomfortable in the overly dry indoor environment.

[0003] In view of this, improved air conditioners have emerged on the market. The improved air conditioners are configured with a humidifying module, and the humidifying module directly transports the generated water mist to the air outlet of the air conditioner and blows it into the room. Through the setting of the humidifying module, the air conditioner can humidify the indoor air during operation. However, by humidifying through such a humidifying module, the humidity of the air flow blown out from the air outlet of the air conditioner is uneven, and the user experience is poor.

[0004] Correspondingly, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] In order to solve the above problems in the prior art, that is, to solve the problem that when the existing air conditioner humidifies by means of a humidifying module, the humidity of the air flow at the air outlet is uneven and the user experience is poor, the present invention provides an air conditioner, which includes a housing. An atomization chamber is formed inside the housing. The atomization chamber has a mist outlet and a water mist generating unit is arranged inside the atomization chamber. The housing is provided with an air inlet and an air outlet, and a circulation channel is formed inside the housing between the air inlet and the air outlet. A fan is arranged inside the circulation channel. Among them, the mist outlet is communicated with the air inlet and / or the air outlet; and the air inlet and the air outlet are arranged adjacent to each other so as to allow at least a part of the gas flowing out of the air outlet to enter the circulation channel through the adjacent arrangement and the action of the fan through the air inlet.

[0006] In the preferred technical solution of the above air conditioner, at least one first partition is arranged inside the housing, and the first partition and the housing form the atomization chamber.

[0007] In the preferred technical solution of the above air conditioner, a second partition is arranged inside the housing, and the second partition, the first partition and the housing form the circulation channel.

[0008] In the preferred technical solution of the above air conditioner, two first partitions are arranged oppositely in the housing, and the two first partitions respectively form two atomization chambers with the parts of the housing far away from each other. Two second partitions are arranged oppositely in the housing, and the two second partitions are arranged between the two first partitions. The two first partitions, the two second partitions and the part of the housing between the two first partitions form the circulation channel. Among them, the air outlet is located between the two second partitions, and the number of air inlets is two, and the two air inlets are respectively located on both sides of the air outlet.

[0009] In the preferred technical solution of the above air conditioner, the mist outlet is arranged at a position adjacent to the air inlet and the air outlet so that the mist outlet is communicated with the air inlet and the air outlet at the same time.

[0010] In the preferred technical solution of the above air conditioner, a fan is arranged at a position in the circulation channel close to the air inlet and / or close to the air outlet.

[0011] In the preferred technical solution of the above air conditioner, the housing is provided with a wind-dispersing plate having a plurality of communication holes at a position corresponding to the air inlet so as to disperse the incoming air flow before it enters the circulation channel.

[0012] In the preferred technical solution of the above air conditioner, the water mist generating unit is an ultrasonic atomizer.

[0013] In the preferred technical solution of the above air conditioner, a first sterilization unit is further arranged in the atomization chamber; and / or a second sterilization unit is arranged in the circulation channel.

[0014] In the preferred technical solution of the above air conditioner, the first sterilization unit is an ultraviolet sterilization module, and the second sterilization unit is a negative ion generating module.

[0015] Those skilled in the art can understand that in the technical solution of the present invention, the mist outlet is communicated with the air inlet and / or the air outlet, and the air inlet and the air outlet are arranged adjacent to each other. When the mist outlet is communicated with the air inlet, the water mist output from the mist outlet enters the circulation channel through the air inlet and then mixes with the air flow to form a mixed gas, and the mixed gas flows out through the air outlet. Since the air inlet and the air outlet are arranged adjacent to each other, a part of the mixed gas blown out from the air outlet enters the circulation channel through the air inlet and is further mixed with the air entering the circulation channel and then flows out through the air outlet. When the mist outlet is communicated with the air outlet, the water mist output from the mist outlet is mixed with the gas flowing out of the air outlet to form a mixed gas. Since the air inlet and the air outlet are arranged adjacent to each other, a part of the mixed gas enters the circulation channel through the air inlet and is further mixed with the air entering the circulation channel and then flows out through the air outlet. When the mist outlet is communicated with both the air inlet and the air outlet, a part of the water mist output from the mist outlet enters the circulation channel through the air inlet and mixes with the air flow to form a mixed gas, and a part is mixed with the gas flowing out of the air outlet to form a mixed gas. A part of the mixed gas formed by mixing with the gas flowing out of the air outlet enters the circulation channel through the air inlet. After the mixed gas formed by mixing the water mist entering the circulation channel through the air inlet with the air flow flows out of the air outlet, a part of the mixed gas also enters the circulation channel through the air inlet, and after mixing in the circulation channel, it finally flows out of the air outlet again.

[0016] Through such a setting, a part of the mixed gas formed by mixing the water mist and the air can enter the circulation channel through the air inlet, be further mixed with the air and water mist entering from the air inlet, and then flow out of the air outlet, improving the uniformity of the mixing of the water mist and the air flow, making the humidity of the air flow sent out by the air conditioner more uniform, and optimizing the user experience. By arranging the first sterilization unit in the atomization chamber, the atomization chamber can be sterilized, thereby avoiding the growth of bacteria in the atomization chamber. By arranging the second sterilization unit in the circulation channel, the air flow flowing through the circulation channel can be sterilized, ensuring the quality of the air flow flowing out of the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred embodiments of the present invention will be described below with reference to the drawings in conjunction with a wall-mounted air conditioner. In the drawings:

[0018] Figure 1 is the front view of the humidifying device of the wall-mounted air conditioner according to an embodiment of the present invention;

[0019] Figure 2 is the top view of the humidifying device of the wall-mounted air conditioner according to an embodiment of the present invention;

[0020] Figure 3 is along Figure 2 the A-A line in

[0021] Figure 4 is alongFigure 2 Cross-sectional view along line B-B;

[0022] Figure 5 It is a schematic structural diagram of the ultraviolet sterilization module in the humidifying device of a wall-mounted air conditioner according to an embodiment of the present invention.

[0023] List of reference numerals:

[0024] 1. Housing; 11. First partition; 12. Second partition; 13. Atomization chamber; 14. Circulation channel; 15. Mist outlet; 16. Air inlet; 17. Air outlet; 18. Air diffuser plate; 19. Mounting plate; 2. Air inlet fan; 21. Air inlet fan support; 22. Air inlet fan fixing bracket; 23. Air inlet fan guide cover; 3. Air outlet fan; 31. Air outlet fan support; 32. Air outlet fan fixing bracket; 33. Air outlet fan guide cover; 4. Ultrasonic atomizer; 5. Ultraviolet sterilization module; 51. Lamp tube fixing seat; 52. Lamp tube outer cover; 53. Outer light-emitting mesh of the lamp tube; 54. Inner light-emitting mesh of the lamp tube; 55. Lamp tube conductive tube; 56. Lamp tube mounting seat; 6. Negative ion generator. Detailed implementation manners

[0025] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention. For example, although the present invention is introduced in combination with a wall-mounted air conditioner, those skilled in the art can make adjustments according to needs to adapt to specific application scenarios. For example, the air conditioner of the present invention can also be a floor-standing air conditioner, a ceiling-mounted air conditioner, etc. Obviously, the adjusted technical solutions will still fall within the protection scope of the present invention.

[0026] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In addition, it should be noted that in the description of the present invention, unless otherwise clearly defined and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, to better illustrate the present invention, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present invention can also be implemented without some specific details. In some embodiments, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail to highlight the gist of the present invention.

[0029] Refer to Figures 1 to 4 , Figure 1 is the front view of the humidifying device of a wall-mounted air conditioner according to an embodiment of the present invention; Figure 2 is the top view of the humidifying device of a wall-mounted air conditioner according to an embodiment of the present invention; Figure 3 is a cross-sectional view along the Figure 2 A-A line in Figure 4 is a cross-sectional view along the Figure 2 B-B line in

[0030] The wall-mounted air conditioner (hereinafter referred to as the air conditioner) includes an outdoor unit and an indoor unit. A humidifying device is provided in the indoor unit, as Figures 1 to 4 shown and referring to Figure 3In the orientation shown, the humidifying device includes a housing 1. The housing 1 is provided with an air outlet 17 and two air inlets 16 adjacent to the air outlet 17 and located on both sides of the air outlet 17. Inside the housing 1, two first partition plates 11 arranged facing each other and two second partition plates 12 arranged facing each other are provided. The two first partition plates 11 respectively form two atomization chambers 13 located on the left and right sides with the parts of the housing 1 far from each other. The two second partition plates 12 are arranged between the two first partition plates 11. The two first partition plates 11, the two second partition plates 12 and the housing part located between the two first partition plates 11 form a circulation channel 14 located between the air inlets 16 and the air outlet 17. Both of the two atomization chambers 13 have mist outlets 15, and a water mist generating unit, such as an ultrasonic atomizer 4, is arranged in both of the two atomization chambers 13. The two mist outlets 15 are respectively arranged at the left and right positions adjacent to the air inlets 16 and the air outlet 17 so that each mist outlet 13 is simultaneously communicated with the air inlets 16 and the air outlet 17. Two air outlet fans 3 are arranged at positions in the circulation channel 14 close to the air outlet 17. The air outlet fans 3 are fixed on the air outlet fan supports 31, and the air outlet fan supports 31 are fixed to the side part of the first partition plate 11 through the air outlet fan fixing frames 32. An air inlet fan 2 is arranged at a position in the circulation channel 14 close to the air inlets 16. The air inlet fan 2 is fixed on the air inlet fan support 21, and the air inlet fan support 21 is fixed to the side part of the first partition plate 11 through the air inlet fan fixing frames 22.

[0031] During operation, the ultrasonic atomizer 4 operates to form water mist in the atomization chamber 13. The water mist is output from the mist outlet 15, and the air inlet fan 2 and the air outlet fans 3 rotate simultaneously. As Figure 4 and Figure 5 shown, the gas outside the housing 1 flows into the circulation channel 14 from the two air inlets 16 at a certain speed, forming a certain negative pressure around the airflow flowing towards the air inlets 16. Due to the effect of the negative pressure, a part of the water mist output from the mist outlet 15 enters the circulation channel 14 from the air inlets 16. The water mist and the airflow are mixed in the circulation channel 14 to form a mixed gas, and the mixed gas flows out from the air outlet 17 at a certain speed, also forming a certain negative pressure around the airflow flowing out of the air outlet 17, causing another part of the water mist output from the mist outlet 15 to flow into the airflow flowing out of the air outlet 17 and mix with it, thereby further mixing the mixed gas flowing out of the air outlet 17 with the water mist. Since the air inlets 16 and the air outlet 17 are adjacent to each other, the negative pressure formed around the airflow flowing towards the air inlets 16 causes a part of the mixed gas flowing out of the air outlet 17 to enter the circulation channel 14 from the air inlets 16 and further mix with the water mist and air entering from the air inlets 16, while another part of the mixed gas flowing out of the air outlet 17 flows upward.

[0032] With such a setting, the water mist can be fully mixed with the air flow, making the humidity of the air flow sent out by the air conditioner more uniform and optimizing the user experience. The atomization chamber 13 and the circulation channel 14 are formed by the first partition 11, the second partition 12 and the housing 1, with ingenious design, simple structure and low manufacturing cost. The ultrasonic atomizer 4 generates water mist, which can make the generated water mist delicate and uniform. Moreover, the ultrasonic atomizer 4 occupies a small volume and has high energy utilization rate, thus making the structure more compact, reducing energy consumption and saving resources.

[0033] Those skilled in the art can understand that the ultrasonic atomizer 4 as the water mist generating unit is only a preferred implementation manner, and those skilled in the art can adjust it according to needs to adapt to specific application scenarios. For example, the water mist generating unit can also be an atomizing nozzle, a heating atomizer or other suitable atomizers. The number of the air outlet fans 2 arranged at the position of the circulation channel 14 close to the air outlet 17 being 2 is only an exemplary description, and those skilled in the art can adjust it according to needs to adapt to specific application scenarios. For example, the number of the air outlet fans 2 can be 1, 3, etc.; and, arranging the air inlet fan 2 and the air outlet fan 3 at the positions of the circulation channel 14 close to the air inlet 16 and close to the air outlet 17 respectively is only a preferred implementation manner, and those skilled in the art can adjust it according to needs to adapt to specific application scenarios. For example, the air inlet fan 2 can be arranged only at the position of the circulation channel 14 close to the air inlet 16, or the air outlet fan 3 can be arranged only at the position of the circulation channel 14 close to the air outlet 17, or the fan 3 can be arranged only in the middle of the circulation channel 14 to form an air flow in the circulation channel 14. In addition, the circulation channel 14 can also be a pipeline arranged between the air inlet 16 and the air outlet 17. Moreover, the fog outlet 15 being arranged at a position adjacent to both the air inlet 16 and the air outlet 17 and communicating with both the air inlet 16 and the air outlet 17 is only a preferred implementation manner, and those skilled in the art can adjust it according to needs to adapt to specific application scenarios, such as:

[0034] In a feasible implementation manner, the fog outlet 15 is arranged at a position only adjacent to the air inlet 16. In this case, the air flow flowing towards the air inlet 16 forms a negative pressure around it, and the water mist output from the fog outlet 15 enters the circulation channel 14 through the air inlet 16 under the action of the negative pressure and mixes with the air entering from the air inlet 16 to form a mixed gas, and the mixed gas flows out from the air outlet 16. Since the air inlet 16 and the air outlet 17 are adjacent, under the action of the negative pressure formed by the air flow flowing towards the air inlet 16, a part of the mixed gas flowing out from the air outlet 17 enters the circulation channel 14 through the air inlet 16, is further mixed with the air entering the circulation channel 14, and then flows out from the air outlet 17, while another part of the mixed gas flowing out from the air outlet 17 directly flows upward.

[0035] In another feasible implementation, the mist outlet 15 is arranged at a position adjacent only to the air outlet 17. In this case, the air flow flowing out from the air outlet 17 forms a negative pressure around it, and the water mist output from the mist outlet 15 is mixed with the gas flowing out from the air outlet 17 under the action of the negative pressure to form a mixed gas. Since the air inlet 16 and the air outlet 17 are adjacent, a part of the mixed gas enters the circulation channel 14 through the air inlet 16 and is further mixed with the air entering the circulation channel 14 and then flows out through the air outlet 17, while another part of the mixed gas formed by mixing with the gas flowing out from the air outlet 17 directly flows upward. Obviously, the adjusted technical solution still falls within the protection scope of the present invention.

[0036] Those skilled in the art can understand that forming two atomization chambers 13 by two first partition plates 11, two second partition plates 12 and the housing 1, and arranging two air inlets 16 on the housing is only an exemplary description. Those skilled in the art can adjust it according to needs to adapt to specific application scenarios. For example, in a feasible implementation, one air inlet and one air outlet are arranged on the housing, and only one first baffle and one second baffle are arranged in the housing. The first baffle forms an atomization chamber with a part of the housing, the second baffle is arranged between the first baffle and another part of the housing, and the first baffle, the second baffle and the part of the housing form a circulation channel, and the circulation channel is located between one air inlet and one air outlet; in another feasible implementation, one air outlet and a plurality of air inlets surrounding the air outlet are arranged on the housing, and a plurality of first baffles and a plurality of second baffles are arranged in the housing, and a plurality of first partition plates, a plurality of second partition plates and the housing form a plurality of circulation channels respectively located between the air outlet and the air inlets.

[0037] Continue to refer to Figures 2 to 4 , preferably, the air inlet fan 2 is sleeved with an air inlet fan guide cover 23, and the air outlet fan 3 is sleeved with an air outlet fan guide cover 33. Through the arrangement of the air inlet fan guide cover 23 and the air outlet fan guide cover 33, the air flow passing through the air inlet fan 2 and the air outlet fan 3 is guided.

[0038] Continue to refer to Figure 4 , preferably, a diffuser plate 18 with a plurality of communication holes is arranged on the housing 1 at a position corresponding to the air inlet 16, and the air flow flowing towards the air inlet 16 is dispersed by the plurality of communication holes of the diffuser plate 18 and then enters the circulation channel 14. Through the arrangement of the diffuser plate 18, the mixed gas mixed with water mist is dispersed by the diffuser plate 18 before entering the circulation channel 14, so that the mixed gas and water mist flowing towards the air inlet are dispersed and further mixed, further improving the mixing uniformity.

[0039] Refer to Figure 5 And continue to refer to Figure 3 , Figure 5It is a schematic structural diagram of the ultraviolet sterilization module in the humidifying device of a wall-mounted air conditioner according to an embodiment of the present invention. As Figure 3 and Figure 5 shown, preferably, a first sterilization unit, such as the ultraviolet sterilization module 5, is provided in the atomization chamber 13. The ultraviolet sterilization module 5 includes a lamp tube fixing seat 51, and the lamp tube fixing seat 51 is fixed to the bottom of the atomization chamber 13. A lamp tube mounting seat 56 is installed on the lamp tube fixing seat 51, a lamp tube conductive tube 55 is on the fixed mounting seat 56, an inner lamp tube luminous net 54 is covered outside the lamp tube conductive tube 55, an outer lamp tube luminous net 53 is covered outside the inner lamp tube luminous net 54, an outer lamp tube cover 52 is covered outside the outer lamp tube luminous net 53, the inner lamp tube luminous net 54 is installed on the lamp tube fixing seat 51, the outer lamp tube luminous net 53 is assembled on the inner lamp tube luminous net 54, and the outer lamp tube cover 52 is fixed to the lamp tube mounting seat 56. During use, the lamp tube conductive tube 55 of the ultraviolet sterilization module 5 is powered on, and the outer lamp tube luminous net 53 and the inner lamp tube luminous net 54 generate ultraviolet rays to sterilize the inside of the atomization chamber 13, thereby preventing bacteria from growing in the atomization chamber 13, avoiding the generation of water mist with bacteria, and ensuring the quality of the humidified air.

[0040] Continue Figure 3 and Figure 5 , preferably, a second sterilization unit, such as a negative ion generator 6, is provided in the circulation channel 14. A mounting plate 19 is provided at the bottom of the circulation channel 14, the mounting plate 19 is detachably connected to the housing 1, and the negative ion generator 6 is fixed to the mounting plate 19. During the operation of the humidifying device, the negative ion generator 6 releases negative ions into the circulation channel 14 to sterilize the gas flowing in the circulation channel 14, further ensuring the quality of the humidified gas. The mounting plate 19 is detachably connected to the housing 1, which facilitates the maintenance and replacement of the negative ion generator 6.

[0041] Those skilled in the art can understand that the first sterilization unit being the ultraviolet sterilization module 5 and the second sterilization unit being the negative ion generator 6 is only a specific implementation manner. Those skilled in the art can understand that the first sterilization unit and the second sterilization unit can both be ultraviolet sterilization modules, negative ion generators, or ozone generators, etc. In addition, both the first sterilization unit and the second sterilization unit can be provided in the housing, or only one of them can be provided.

[0042] As can be seen from the above description, in the preferred technical solution of the present invention, the mist outlet is communicated with the air inlet and / or the air outlet, and the air inlet and the air outlet are arranged adjacent to each other, so that a part of the mixed gas formed by the mixture of the water mist and the air enters the circulation channel through the air inlet, and then further mixes with the air and the water mist entering from the air inlet and flows out from the air outlet, improving the uniformity of the mixture of the water mist and the air flow, making the humidity of the air flow sent out by the air conditioner more uniform, and optimizing the user experience. By arranging the first sterilization unit in the atomization chamber, the atomization chamber can be sterilized, thereby avoiding the growth of bacteria in the atomization chamber. By arranging the second sterilization unit in the circulation channel, the air flow flowing through the circulation channel can be sterilized, ensuring the quality of the air flow flowing out from the air outlet.

[0043] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An air conditioner, characterized in that, The air conditioner includes a housing, an atomization chamber is formed in the housing, the atomization chamber has a mist outlet and a mist generating unit is arranged in the atomization chamber; The housing is provided with an air inlet and an air outlet, and a circulation channel is formed in the housing between the air inlet and the air outlet, and a fan is arranged in the circulation channel; Wherein, the mist outlet is communicated with the air inlet and / or the air outlet; and The air inlet and the air outlet are arranged adjacent to each other so as to allow at least a part of the gas flowing out of the air outlet to enter the circulation channel through the adjacent arrangement and the action of the fan through the air inlet; The mist outlet is arranged at a position adjacent to the air inlet and the air outlet so that the mist outlet is communicated with the air inlet and the air outlet at the same time; The housing is provided with a wind-dispersing plate having a plurality of communication holes at a position corresponding to the air inlet so as to disperse the incoming air flow before entering the circulation channel; Two first partitions are arranged oppositely in the housing, and the two first partitions respectively form two atomization chambers with parts of the housing far away from each other; Two second partitions are arranged oppositely in the housing, the two second partitions are arranged between the two first partitions, and the two first partitions, the two second partitions and the part of the housing between the two first partitions form the circulation channel, Wherein, the air outlet is located between the two second partitions, the number of air inlets is two, and the two air inlets are respectively located on both sides of the air outlet.

2. The air conditioner according to claim 1, characterized in that, The fan is arranged at a position in the circulation channel close to the air inlet and / or close to the air outlet.

3. The air conditioner according to claim 1, characterized in that, The mist generating unit is an ultrasonic atomizer.

4. The air conditioner according to claim 1, characterized in that, A first sterilization unit is further arranged in the atomization chamber; and / or A second sterilization unit is arranged in the circulation channel.

5. The air conditioner according to claim 4, characterized in that, The first sterilization unit is an ultraviolet sterilization module, and the second sterilization unit is a negative ion generation module.

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