Louver structure and charging equipment

Abstract

The utility model discloses a shutter structure and charging equipment, the shutter structure comprises a frame and a plurality of blades, and the frame is provided with two side plates arranged at intervals in the first direction and a bottom plate connected with the ends of the two side plates; the multiple blades are sequentially arranged between the two side plates in the second direction. Each blade is provided with a first turnup part, a second turnup part and a third turnup part. The first turnup part and the third turnup part are opposite in the first direction, the first turnup part and the third turnup part incline towards the side, facing the bottom plate, of the blade, and the second turnup part inclines along the side, deviating from the bottom plate, of the blade; the first turnup portion and the third turnup portion are provided with inserting grooves, in every two adjacent blades, the second turnup portion on the blade close to the bottom plate is inserted into the two inserting grooves in the other blade, and a gap is formed between the second turnup portion and the other blade. In the invention, the spacing distance between the adjacent blades can be the same without specially controlling the position precision between the adjacent blades.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging equipment, in particular to a louver structure and a charging equipment. BACKGROUND

[0002] With the increasing popularity of electric vehicles, the industry has increasingly high requirements for the protection performance of charging equipment and modules, and the number of charging piles used for charging electric vehicles is also increasing. A large amount of heat is generated during charging of the charging pile, so a larger ventilation opening needs to be provided on the charging pile for heat dissipation. The charging pile is generally arranged outdoors, and in order to prevent water, dust and insects, a louver is generally installed on the ventilation opening.

[0003] The louver of the air inlet and outlet is a commonly used structure, and no matter what type of cross section the louver structure is, it is formed by an array of the same blade units. However, the positional accuracy between adjacent blades is difficult to control. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a louver structure and a charging equipment, which aims to solve the problem of difficult control of the positional accuracy between adjacent blades of a traditional louver.

[0005] To achieve the above-mentioned purpose, the present application provides a louver structure, which comprises a frame and a plurality of blades. The frame has two side plates arranged at intervals in a first direction, and a bottom plate connecting the end portions of the two side plates. The plurality of blades are arranged in sequence between the two side plates in a second direction, the second direction intersects the first direction, and the three edges of the blades connected in sequence are respectively provided with a first flange portion, a second flange portion and a third flange portion. The first flange portion and the third flange portion are opposite to each other in the first direction, and both the first flange portion and the third flange portion are inclined towards the side of the blade facing the bottom plate. The second flange portion is inclined away from the side of the blade facing the bottom plate. In the second direction, the blade has a first side edge and a second side edge arranged oppositely, the second flange portion of the blade is connected at the first side edge, and the distance between the first side edge and the bottom plate is greater than the distance between the second side edge and the bottom plate. The first flange portion and the third flange portion are provided with a slot, and in the two adjacent blades, the second flange portion on the blade close to the bottom plate is inserted into the two slots on the other blade and has a gap between the other blade.

[0006] Optionally, in the second direction, the blade has a first side edge and a second side edge arranged oppositely, the second flange portion of the blade is connected at the first side edge, and the distance between the first side edge and the bottom plate is greater than the distance between the second side edge and the bottom plate.

[0007] Optionally, a plurality of first through holes are arranged on the side plate near the first flange part, the first through holes are arranged in the second direction in sequence, the first through holes correspond to the blades one by one, and the first flange part is provided with a second through hole; the louver structure further comprises a fastener, the fastener corresponds to the first through hole one by one and passes through the corresponding first through hole and the corresponding second through hole to connect the side plate and the blade.

[0008] Optionally, the first flange part and the third flange part are perpendicular to the blade; the first flange part is attached to one side plate, and the third flange part is attached to another side plate.

[0009] Optionally, an included angle between the second flange part and the blade is a, and a≤90°.

[0010] Optionally, when the louver structure is used as an air inlet, the included angle a between the second flange part and the blade is 90°; when the louver structure is used as an air outlet, the included angle a between the second flange part and the blade is less than 90°.

[0011] Optionally, a fourth flange part is further arranged on the second side edge of the blade; wherein the fourth flange part is inclined along the blade towards one side of the bottom plate.

[0012] Optionally, an included angle between the blade and the fourth flange part is b, and 90°<b<180°.

[0013] Optionally, the louver structure further comprises an inclined plate, the inclined plate is fixed between the bottom plate and each blade and is perpendicular to the side plate, wherein the side of the inclined plate near the fourth flange part is inclined towards the bottom plate.

[0014] To achieve the above-mentioned purpose, the embodiment of the present application further provides a charging device, which comprises a pile body and the above-mentioned louver structure, the pile body is provided with an air inlet and an air outlet; and the above-mentioned louver structure is arranged at the air inlet and / or the air outlet of the pile body.

[0015] The louver structure provided by the embodiment of the present application is characterized in that the blades are arranged in the frame in the second direction in sequence, the second flange part of one blade is inserted into the insertion slot of another blade among the adjacent two blades, so as to fix the position between the adjacent two blades, and the position precision between the adjacent blades can be ensured to be the same without special control. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the prior art and the present application, the drawings needed in the description of the prior art and the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be derived from the provided drawings without creative labor.

[0017] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0018] Figure 1 The overall structure of the louver structure is provided in the embodiment of the present application.

[0019] Figure 2 The cross-sectional structure of the louver structure is provided in the first embodiment of the present application.

[0020] Figure 3 The structure of the blade is provided in the embodiment of the present application.

[0021] Figure 4 The cross-sectional structure of the louver structure is provided in the second embodiment of the present application.

[0022] In the figure: 1, frame; 11, side plate; 111, first through hole; 13, slot; 2, blade; 21, first flange part; 211, second through hole; 22, second flange part; 23, third flange part; 24, fourth flange part; 3, fastener; 4, inclined plate.

[0023] The implementation, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0026] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing", etc. should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal communication of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In addition, if the present application embodiments involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0028] The present application will be described in detail below in conjunction with the drawings and embodiments.

[0029] Figure 1 The overall structure of a louver structure provided by the present application is shown in the split schematic diagram; Figure 2 The cross-sectional structure of a louver structure provided by the present application is shown in the schematic diagram; Figure 3 The structure of a louver provided by the present application is shown in the schematic diagram.

[0030] Reference Figures 1-4This application provides a louver structure, which may include a frame 1 and a plurality of blades 2. The frame 1 has two side plates 11 spaced apart in a first direction and a bottom plate connecting the ends of the two side plates 11. The plurality of blades 2 are arranged sequentially between the two side plates 11 in a second direction, the second direction being the same as the extension direction of the side plates 11. A first flange 21, a second flange 22, and a third flange 23 are respectively provided on the three edges of the blades 2 connected in sequence. The first flange 21 and the third flange 23 are opposite to each other in the first direction, and both the first flange 21 and the third flange 23 are inclined towards the bottom plate along the blade 2. The second flange 22 is inclined away from the bottom plate along the side of the blade 2. The first flange 21 and the third flange 23 are provided with slots 13. In two adjacent blades 2, the second flange 22 on the blade 2 closer to the bottom plate is inserted into the two slots 13 on the other blade 2 and there is a gap between the blade 2 and the other blade 2.

[0031] The embodiment of this application proposes a louver structure in which blades 2 are arranged sequentially in the frame 1 in the second direction. In two adjacent blades 2, the second flange 22 of one blade 2 is inserted into the slot 13 of the other blade 2, thereby fixing the position between the two adjacent blades 2. The spacing between adjacent blades 2 can be the same without having to control the positional accuracy between adjacent blades 2.

[0032] Specifically, the louver structure is called a Venetian blind, such as... Figure 1 As shown, the first direction is the X direction and the second direction is the Y direction. For ease of understanding, the venetian blind frame 1 in this application is used as an example. The frame 1 can be rectangular in shape. The frame 1 has a length and a width. The first direction X can be the width direction of the frame 1, and the second direction Y can be the length direction of the frame 1. The first direction X is perpendicular to the second direction Y. In addition, during use, the second direction Y can be the same as the direction of gravity, that is, the frame 1 is erected. In this way, the slats 2 of the venetian blind can be arranged sequentially in the direction of gravity, and the bottom plate is located at the bottom of the venetian blind. Of course, this is only an example and does not limit the specific shape of the frame 1. In addition, the second direction Y can also be close to the direction of gravity, and it does not have to be the same as the direction of gravity.

[0033] It should be understood that the positional accuracy between adjacent blades 2 refers to the distance between adjacent blades 2, wherein blade 2 is perpendicular to side plate 11.

[0034] It should be noted that in the two adjacent blades 2, the second flange portion 22 of the blade 2 close to the bottom plate is inserted into the two insertion slots 13 on the blade 2 and has a gap with the other blade 2, here the inserted blade 2 can be referred to as the first leaf, the other blade 2 can be referred to as the second leaf, and the connection between the two blades 2 is referred to as insertion, then it can be understood that the second flange portion 22 on the second leaf is inserted into the two insertion slots 13 on the first leaf, thereby fixing the relative position of the first leaf and the second leaf, in addition, the gap here refers to that the second flange portion 22 on the second leaf has a gap with the first leaf, and the airflow can pass between the adjacent blades 2 and reach from one side of the frame 1 to the other side in the thickness direction of the frame 1.

[0035] In addition, for the convenience of understanding, the thickness direction of the frame 1 is defined here, and the thickness direction of the frame 1 is perpendicular to the length direction and the width direction of the frame 1.

[0036] In the exemplary embodiment, in the second direction, the blade 2 has a first side edge and a second side edge arranged opposite to each other, the blade 2 is connected to the second flange portion 22 at the first side edge, and the distance between the first side edge and the bottom plate is greater than the distance between the second side edge and the bottom plate.

[0037] In the second direction Y, the blade 2 has a first side edge and a second side edge arranged opposite to each other, the blade 2 is connected to the second flange portion 22 at the first side edge, and in the second direction Y, the distance between the first side edge and the bottom plate is greater than the distance between the second side edge and the bottom plate, as shown in Figure 2 When the second direction Y is the same as the direction of gravity, at this time the blade 2 is arranged inclined to the horizontal plane, then in the thickness direction of the frame 1, one side of the blade 2 is low, that is, the first side edge is higher than the second side edge, in the thickness direction of the frame 1, the side of the frame 1 close to the second side edge of the blade 2 is referred to as the outer side, and the side of the frame 1 close to the first side edge of the blade 2 is referred to as the inner side.

[0038] It should be understood that when the second direction Y is the same as the direction of gravity, the bottom plate is in a horizontal state, the minimum distance between the first side edge and the bottom plate is referred to as a, and a is the minimum value of the distance between all points on the first side edge and the plane on which the bottom plate is located; the minimum distance between the second side edge and the bottom plate is referred to as b, and b is the minimum value of the distance between all points on the first side edge and the plane on which the bottom plate is located, and a > b, so that the blade 2 is in an inclined state, as shown in Figure 1 or Figure 2 .

[0039] Thus, when encountering rain weather, wind flow entrains water droplets from the outside of the shutter to the inside, the wind flow passes through the adjacent blades 2, the water droplets first contact the blades 2 and then are pushed by the wind flow to move inward, but due to the presence of the second flange part 22, the water droplets are blocked by the second flange part 22 and cannot move to the inside, and finally flow from the blades 2 to the outside of the frame 1.

[0040] In addition, the inclination angle of the specific blade 2 relative to the bottom plate, that is, the included angle between the plane where the blade 2 is located and the plane where the bottom plate is located is denoted as c, and 0° < c < 90°; the greater the value of c, the more inclined the blade 2, and the wind flow needs to change direction greatly to move from the outside of the frame 1 to the inside of the frame 1, the difficulty of air intake increases, which affects the air intake effect, but the rain is blocked by the blade 2 and the second flange part 22, and it is more difficult to move from the outside of the frame 1 to the inside of the frame 1, and the rain blocking effect is better; the smaller the value of c, the more stable the blade 2, and the wind flow needs to change direction only slightly to move from the outside of the frame 1 to the inside of the frame 1, the difficulty of air intake decreases, and the air intake effect is good, but the blocking effect of the rain by the blade 2 and the second flange part 22 is poor, and the rain blocking effect is poor; in the preferred scheme, c can be 60°, so that the blade 2 inclined at this angle cooperates with the second flange part 22 to achieve a better rain blocking effect, and at the same time, the wind flow needs to change direction only slightly to move from the outside of the frame 1 to the inside of the frame 1, and the air intake effect is also better.

[0041] Reference Figure 1 In the example embodiment, a plurality of first through holes 111 arranged in the second direction Y are provided on the side plate 11 close to the first flange part 21, the first through holes 111 correspond to the blades 2 one by one, and the first flange part 21 is provided with a second through hole 211; the shutter structure can further include a fastener 3, which corresponds to the first through hole 111 one by one and passes through the corresponding first through hole 111 and the corresponding second through hole 211 to connect the side plate 11 and the blade 2.

[0042] Among them, the fastener 3 can be a bolt, the bolt passes through the first through hole 111 and the second through hole 211 and cooperates with the nut to lock, that is, the relative position of the first flange part 21 and the side plate 11 can be fixed.

[0043] Specifically, since the adjacent blades 2 are connected by insertion, the adjacent blades 2 have a certain structural strength, so that the first through hole 111 can be provided on only one side plate 11, so that each blade 2 only needs one fastener 3 to achieve fixation, and the fixation effect is good, saving the number of fasteners 3 and assembly time.

[0044] It should be understood that the above is not limited to the blade 2 being fixed by only one fastener 3, but is only a preferred embodiment, and a first through hole 111 can also be provided on both side plates 11, and a second through hole 211 is provided on the third flange portion 23, so that the blade 2 is fixed on both sides of the blade 2 in the first direction X, which is necessarily more firmly fixed, but the operation is greatly complicated.

[0045] In the exemplary embodiment, the first flange portion 21 and the third flange portion 23 are both perpendicular to the blade 2; the first flange portion 21 is attached to one side plate 11, and the third flange portion 23 is attached to the other side plate 11.

[0046] Specifically, the blade 2 is perpendicular to the side plate 11, so when the first flange portion 21 and the third flange portion 23 are both perpendicular to the blade 2, the first flange portion 21 and the third flange portion 23 are both parallel to the side plate 11, so that when the blade 2 and the side plate 11 are connected, the first flange portion 21 is attached to one side plate 11, and the third flange portion 23 is attached to the other side plate 11, and then the fastener 3 is tightened to fix the blade 2 and the side plate 11, and the first flange portion 21 is attached to one side plate 11, and the fastener 3 has a better effect of fixing the blade 2 and the side plate 11.

[0047] Reference Figure 2 and Figure 4 In the exemplary embodiment, the angle between the second flange portion 22 and the blade 2 is a, and a≤90°. In the preferred embodiment, when the louver is used as an air inlet, the angle a between the second flange portion 22 and the blade 2 is 90°; when the louver is used as an air outlet, the angle a between the second flange portion 22 and the blade 2 is <90°

[0048] Specifically, a can be 45°, 60°, 75°, 90°, etc. When the louver is used as an air inlet, the airflow needs to flow from the outside to the inside of the upper frame 1 of the louver, the larger the angle a between the second flange portion 22 and the blade 2, the easier it is for rainwater to be blocked by the second flange portion 22, and the better the rain-blocking effect; when the louver is used as an air outlet, the airflow needs to flow from the inside to the outside of the upper frame 1 of the louver, so the smaller a is, the smaller the airflow resistance is, but the rain-blocking effect will also be poorer; in the preferred scheme, if the louver is used as an air outlet, a can be 45°, as shown in Figure 4 , so that the air outlet effect is ensured while also taking into account a certain rain-blocking effect.

[0049] Reference Figure 2 In the exemplary embodiment, a fourth flange portion 24 is also provided on the second side edge of the blade 2; wherein the fourth flange portion 24 is inclined along the side of the blade 2 towards the bottom plate.

[0050] It should be understood that the fourth flanging portion 24 is inclined towards the side of the blade 2 facing the bottom plate, and it can also be understood that the fourth flanging portion 24 is on the same side of the blade 2 as the first flanging portion 21, in other words, the fourth flanging portion 24 and the first flanging portion 21 are both located on the side of the blade 2 facing the bottom plate.

[0051] The fourth flanging portion 24 can further block rainwater from moving from the outside of the frame 1 to the inside of the frame 1 by the wind flow.

[0052] Reference Figure 2 In an exemplary embodiment, the angle between the blade 2 and the fourth flanging portion 24 is b, and 90° < b < 180°. In a preferred embodiment, the angle b between the blade 2 and the fourth flanging portion 24 is 120°.

[0053] Specifically, as shown in Figure 2 b can be 100°, 120°, 150°, 170°, etc., and in a preferred embodiment, when the angle between the blade 2 and the bottom plate 1 is 45°, b can be 120°, and when c is 60°, the fourth flanging portion 24 is parallel to the second direction Y, so that the inclination angle of the fourth flanging portion 24 is reasonable, and the rain blocking effect is better.

[0054] In addition, the longer the length of the fourth flanging portion 24 in the second direction Y, the better the rain blocking effect, but it will affect the wind flow passing below the fourth flanging portion 24, so the length of the fourth flanging portion 24 in the second direction Y should not be too long, and it can be set according to the actual situation, as long as the wind flow can pass through the gap between the second flanging portion 22 and the upper blade 2.

[0055] Reference Figure 2 In an exemplary embodiment, the louver window can further include a slope plate 4 fixed between the bottom plate and each blade 2 and perpendicular to the side plate 11, wherein the side of the slope plate 4 close to the fourth flanging portion 24 is inclined towards the bottom plate.

[0056] Specifically, as shown in Figure 2 the blade 2 closest to the slope plate 4 is referred to as the third leaf, and after the rainwater enters the gap between the third leaf and the slope plate 4, the slope plate 4 can effectively guide the rainwater out, and the rainwater flows out of the outside of the frame 1 along the slope plate 4.

[0057] Further, as shown in Figure 2 the side of the slope plate 4 away from the outside of the frame 1 is also provided with a flanging structure referred to as a fifth flanging portion, when the second direction Y is the same as the direction of gravity, the fifth flanging portion is located above the slope plate 4, and the fifth flanging portion is parallel to the second direction Y, so that even if the wind flow carries rainwater and the wind flow speed is large, the fifth flanging portion can still effectively block the rainwater from entering the inside of the frame 1.

[0058] It should be noted that the bottom plate and the inclined plate 4 can be the same plate, and the inclined plate 4 is connected to the two side plates 11 and also guides the rainwater, so that the manufacturing cost of the shutter can be reduced.

[0059] On the basis of the above-mentioned embodiments, the embodiments of the present application further provide a charging device, which can include a pile body and the above-mentioned shutter structure, the pile body is provided with an air inlet and an air outlet; the above-mentioned shutter structure is arranged at the air inlet and / or the air outlet of the pile body.

[0060] Specifically, the charging device can be a charging pile, when the above-mentioned shutter is used as the air inlet or the air outlet of the charging pile, a through slot corresponding to the frame 1 needs to be formed on the pile body, the through slot communicates the inside and the outside of the cabinet body, the frame 1 passes through the through slot and is connected to the through slot, so that the outer side of the frame 1 faces the outside of the cabinet body, and the inner side of the frame 1 faces the inside of the cabinet body, so that the rainwater can be effectively prevented from entering the shutter in rainy weather, and the shutter is installed with fewer fasteners 3, is convenient to install, is more convenient to control the distance between the blades 2, and is more convenient to use.

[0061] The above is only the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and the drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A louver structure, characterized by, The frame (1) has two side plates (11) arranged at intervals in a first direction, and a bottom plate connecting the ends of the two side plates (11); a plurality of blades (2) are arranged in sequence between the two side plates (11) in a second direction, the second direction being the same as the extension direction of the side plates (11), and the three edges of the blades (2) connected in sequence are respectively provided with a first flange portion (21), a second flange portion (22) and a third flange portion (23); wherein the first flange portion (21) and the third flange portion (23) are opposite in the first direction, and the first flange portion (21) and the third flange portion (23) are both inclined towards the side of the blade (2) facing the bottom plate, and the second flange portion (22) is inclined away from the side of the blade (2) facing the bottom plate; the first flange portion (21) and the third flange portion (23) are provided with a slot (13), and in the two adjacent blades (2), the second flange portion (22) on the blade (2) close to the bottom plate is inserted into the two slots (13) on the other blade (2) and has a gap between the other blade (2). In the second direction, the blade (2) has a first side edge and a second side edge arranged opposite to each other, the blade (2) is connected to the second flange portion (22) at the first side edge, and the distance between the first side edge and the bottom plate is greater than the distance between the second side edge and the bottom plate. A plurality of first through holes (111) are arranged on the side plate (11) close to the first flange portion (21) in sequence in the second direction, the first through holes (111) correspond to the blades (2) one by one, and the first flange portion (21) is provided with a second through hole (211); the blind structure further comprises: A fastener (3) corresponding to the first through hole (111) passes through the corresponding first through hole (111) and the corresponding second through hole (211) to connect the side plate (11) and the blade (2). The first flange portion (21) and the third flange portion (23) are perpendicular to the blade (2); 2. The louver structure of claim 1, wherein The first flange portion (21) is attached to one of the side plates (11), and the third flange portion (23) is attached to the other side plate (11).

3. The louver structure of claim 1, wherein The included angle between the second flange portion (22) and the blade (2) is a, and a≤90°. When the blind structure is used as an air inlet, the included angle a between the second flange portion (22) and the blade (2) is 90°; 4. The louver structure of claim 1, wherein When the blind structure is used as an air outlet, the included angle a between the second flange portion (22) and the blade (2) is less than 90°. The second side edge of the blade (2) is further provided with a fourth flange portion (24); 5. The louver structure of claim 1, wherein The fourth flange portion (24) is inclined towards the side of the blade (2) facing the bottom plate.

6. The louver structure of claim 5, wherein The included angle between the blade (2) and the fourth flange portion (24) is b, and 90° The blind structure further comprises:

7. The louver structure of claim 2, wherein ​ ​ 8. The louver structure of claim 7, wherein ​ 9. The louver structure of claim 7, wherein ​ A slope plate (4) is fixed between the bottom plate and each of the blades (2) and perpendicular to the side plate (11), wherein the slope plate (4) is inclined to the bottom plate near the side of the fourth flange portion (24).

10. A charging device, characterized by Comprise: A pile body is provided with an air inlet and an air outlet; The louver structure according to any one of claims 1-9 is arranged at the air inlet and / or air outlet of the pile body.

Images