CN112554651A

CN112554651A - Cover plate assembly and access control system

Info

Publication number: CN112554651A
Application number: CN201910918684.6A
Authority: CN
Inventors: 高亮
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2021-03-26

Abstract

The application relates to the technical field of monitoring, in particular to a cover plate assembly and an access control system, wherein the cover plate assembly comprises a cover plate and a first dehumidifying unit, and the first dehumidifying unit is arranged on one side of the cover plate; the first dehumidification unit comprises a positive electrode layer, an electrolyte layer and a negative electrode layer; the positive pole layer is attached to the cover plate, and the positive pole layer, the electrolyte layer and the negative pole layer are sequentially superposed along the direction of keeping away from the cover plate. Among the apron subassembly and access control system that this application provided, the apron subassembly includes apron and first dehumidification unit, and first dehumidification unit includes positive pole layer, electrolyte layer and negative pole layer, and positive pole layer and negative pole layer are located the both sides of electrolyte layer respectively, and the positive pole layer is close to the apron for the negative pole layer, and above-mentioned first dehumidification unit can be by interior and discharge steam outside, can reach better dehumidification effect to the apron subassembly.

Description

Cover plate assembly and access control system

Technical Field

The application relates to the technical field, especially, relate to a apron subassembly and access control system.

Background

The access control system is a novel modern safety management system, can solve the safety precaution management of important department access & exit, and the current access control system can realize carrying out authentication through video unit in entrance door department, opens the function of entrance door.

The access control system is generally provided with a display screen for displaying images, and related technologies adopt sealing, adding a desiccant or a desiccant bag for dehumidification. However, these dehumidification methods of prior art are not good in the regional effect that the display screen corresponds, have obvious steam gathering after long-term the use, and especially outdoor access control system is more obvious, causes user experience poor.

Disclosure of Invention

The application provides a apron subassembly and access control system to access control system among the solution prior art receives the problem that steam influences.

A first aspect of the present application provides a cover plate assembly comprising:

a cover plate;

the first dehumidification unit is arranged on one side of the cover plate; the first dehumidification unit comprises a positive electrode layer, an electrolyte layer and a negative electrode layer; the positive electrode layer is attached to the cover plate and is arranged along the direction away from the cover plate, and the positive electrode layer, the electrolyte layer and the negative electrode layer are sequentially superposed.

Optionally, the first dehumidification unit comprises a gap for passing moisture.

Optionally, the positive electrode layer includes a plurality of first strip portions, and a first gap is formed between the plurality of first strip portions;

the electrolyte layer comprises a plurality of second strip-shaped parts, and second gaps are formed among the second strip-shaped parts;

the negative electrode layer comprises a plurality of third strips, and third gaps are formed among the third strips;

the first gap, the second gap, and the third gap collectively form the gap.

Optionally, the positive electrode layer comprises a first connection portion for connection with a positive electrode of a power supply; the negative electrode layer includes a second connection portion for connection with a negative electrode of a power supply.

Optionally, a length dimension of the first connection portion is greater than a length dimension of the second connection portion in a width direction (X) of the cap assembly.

Optionally, in a thickness direction (Z) of the cover plate assembly, a thickness dimension of the first connecting portion is greater than a thickness dimension of the second connecting portion, and the first connecting portion and the second connecting portion are flush.

Optionally, the negative electrode layer is a porous material.

Optionally, the cover plate assembly further includes a touch screen disposed on a side of the cover plate away from the first dehumidification unit.

Optionally, the cover plate assembly further comprises a second dehumidifying unit, and the second dehumidifying unit forms a receiving area for receiving the camera on the cover plate.

A second aspect of the present application provides an access control system, comprising a display screen, the access control system comprising the cover plate assembly of any one of the above;

the cover plate assembly covers the display screen.

Optionally, the access control system further comprises a first support and a second support connected to each other;

the cover plate assembly is arranged on one side of the first support piece, which is far away from the second support piece;

one side of the display screen, which is far away from the cover plate component, is assembled on one side of the first supporting piece, which is far away from the second supporting piece.

Optionally, the access control system further comprises a control mainboard and a power supply, wherein the power supply is arranged on the control mainboard; the control main board and the power supply are both arranged on the second supporting piece;

and the output electrode of the power supply is respectively connected with the positive electrode layer and the negative electrode layer.

Optionally, the access control system further comprises a metal thimble arranged on the control main board;

the metal ejector pins comprise a first metal ejector pin and a second metal ejector pin;

the first metal thimble is connected between the output electrode of the power supply and the positive electrode layer;

the second metal thimble is connected between the output electrode of the power supply and the negative electrode layer.

Optionally, the access control system further comprises a heat dissipation component;

the heat dissipation part is arranged on the second support.

The technical scheme provided by the application can achieve the following beneficial effects:

among the apron subassembly and access control system that this application provided, the apron subassembly includes apron and first dehumidification unit, first dehumidification unit includes positive pole layer, electrolyte layer and negative pole layer, positive pole layer attaches in the apron, and along the direction of keeping away from the apron, positive pole layer, electrolyte layer and negative pole layer superpose in proper order, be the stromatolite through setting up above-mentioned first dehumidification unit, make steam outwards by the apron, the steam of apron subassembly is discharged outside by interior promptly, can reach better dehumidification effect to the apron subassembly.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is an exploded schematic view of an access control system according to an embodiment of the present disclosure;

fig. 2 is a rear view of an access control system according to an embodiment of the present disclosure;

FIG. 3 is an exploded view of a cover plate assembly according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a positive electrode layer in a cover plate assembly provided in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an electrolyte layer in a cover plate assembly according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a negative electrode layer in a cover plate assembly according to an embodiment of the present disclosure;

FIG. 7 is a front view of a cover plate assembly provided by an embodiment of the present application;

FIG. 8 is a top view of a cover plate assembly provided by an embodiment of the present application;

FIG. 9 is a side view of an embodiment of a cover plate assembly as provided by an example of the present application;

FIG. 10 is a side view of another embodiment of a cover plate assembly as provided by an example of the present application;

FIG. 11 is a perspective view of a cover plate assembly according to yet another embodiment provided by an example of the present application;

FIG. 12 is a front view of a portion of the cover plate assembly shown in FIG. 11;

fig. 13 is a schematic diagram illustrating an operation of a cover plate assembly according to an embodiment of the present disclosure.

Reference numerals:

100-an access control system;

1-a cover plate assembly;

11-a cover plate;

12-a first dehumidification unit;

121-positive electrode layer;

121 a-a first strip;

121 b-a first gap;

121c — first connection;

122-an electrolyte layer;

122 a-a second strip;

122 b-a second gap;

123-a negative electrode layer;

123 a-a third bar;

123 b-a third gap;

123 c-a second connection;

123 d-well;

124-gap;

13-a touch screen;

14-a second dehumidification unit;

141-a containment area;

15-a first glue layer;

16-a first ITO film layer;

17-a first glass substrate;

18-a second ITO film layer;

19-a second glue layer;

2-a camera assembly;

21-a base;

22-a camera;

3-a display screen;

4-a heat-dissipating component;

5, controlling the main board;

6-a metal thimble;

61-a first metal thimble;

62-a second metal thimble;

7-a first support;

8-second support.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Fig. 1 is an exploded schematic view of an access control system provided in an embodiment of the present application, and fig. 2 is a rear view of the access control system provided in the embodiment of the present application.

As shown in fig. 1 and fig. 2, an access control system 100 provided by the embodiment of the present application includes a display screen 3 and a cover plate assembly 1, where the access control system 100 may further include a camera assembly 2. Wherein, camera subassembly 2 can include base 21 and the camera 22 that is fixed in base 21, and access control system 100 can also include controller (not shown) for control camera 22 gathers the image, can also carry out the human face and compare the analysis, shows the image on display screen 3.

Since the display screen 3 may be affected by moisture, the embodiment of the present application further provides a cover plate assembly 1 including a first dehumidifying unit 12 to dehumidify the display screen 3.

Fig. 3 is an exploded view of a cover assembly and a display screen according to an embodiment of the present invention, and as shown in fig. 3, the embodiment of the present invention provides a cover assembly 1 including a cover 11 and a first dehumidifying unit 12.

The first dehumidifying unit 12 is disposed on one side of the cover plate 11, as shown in fig. 3, the dehumidifying unit 12 includes a positive electrode layer 121, an electrolyte layer 122 and a negative electrode layer 123, the positive electrode layer 121 and the negative electrode layer 123 are respectively disposed on two sides of the electrolyte layer 122, the positive electrode layer 121 is attached to the cover plate 11, and the positive electrode layer 121, the electrolyte layer 122 and the negative electrode layer 123 are sequentially stacked in a direction away from the cover plate 11.

By providing the first dehumidifying unit 12 as described above, the cover plate 11 can be effectively dehumidified, thereby improving an image forming effect.

It should be noted that the cover plate assembly 1 can also be used for other products to be dehumidified.

In the cover plate assembly 1 provided by the embodiment of the application, the positive electrode layer 121 is located on the inner side (the side close to the cover plate 11), the electrolyte layer 122 is located in the middle, and the negative electrode layer 123 is located on the outermost side, so that the arrangement mode ensures that the water vapor of the cover plate 11 can be discharged to the outer side, the problem of influencing imaging is avoided, and the display effect of the display screen 3 is further avoided. The dehumidification unit 12 can discharge the water vapor from inside to outside, thereby achieving a better dehumidification effect.

As a possible implementation manner, fig. 4 is a schematic structural diagram of a positive electrode layer in a cover plate assembly provided in the embodiment of the present application, fig. 5 is a schematic structural diagram of an electrolyte layer in the cover plate assembly provided in the embodiment of the present application, fig. 6 is a schematic structural diagram of a negative electrode layer in the cover plate assembly provided in the embodiment of the present application, fig. 7 is a front view of the cover plate assembly provided in the embodiment of the present application, and fig. 8 is a top view of the cover plate assembly provided in the embodiment of the present application. As shown in fig. 8, the first dehumidifying unit 12 includes a gap 124 for passing water vapor, and by providing the first gap 124, the water vapor can be conveniently passed, thereby decomposing and dehumidifying water more rapidly.

As one possible implementation manner, as shown in fig. 4 to 6, the positive electrode layer 121 includes a plurality of first stripe portions 121a, and first gaps 121b are formed between the plurality of first stripe portions 121 a. The electrolyte layer 122 includes a plurality of second stripe portions 122a, and second gaps 122b are formed between the plurality of second stripe portions. Negative electrode layer 123 includes a plurality of third strips 123a, and third gaps 123b are formed between the plurality of third strips 123 a. The first gap 121b, the second gap 122b, and the third gap 123b collectively form the gap 124 described above.

In this embodiment, the positive electrode layer 121, the electrolyte layer 122 and the negative electrode layer 123 are sequentially stacked, wherein the first strip-shaped portion 121a, the second strip-shaped portion 122a and the third strip-shaped portion 123a are also sequentially stacked, and the first gap 121b, the second gap 122b and the third gap 123b are overlapped with each other to form the gap 124, so that moisture can pass through.

Further, the positive electrode layer 121 includes a first connection portion 121c for connection with a positive electrode of a power source, and the negative electrode layer 123 includes a second connection portion 123c for connection with a negative electrode of the power source. The door access control system 100 may include a metal thimble 6, and the metal thimble 6 may include a first metal thimble 61 and a second metal thimble 62, and the positive electrode of the power supply and the first connection portion 121c are connected through the first metal thimble 61, and the negative electrode of the power supply and the second connection portion 123c are connected through the second metal thimble 62.

Fig. 9 is a side view of a cover plate assembly according to an embodiment of the present disclosure, and as a possible implementation, as shown in fig. 3, 8 and 9, a length dimension of the first connection portion 121c is greater than a length dimension of the second connection portion 123c along a width direction (X) of the cover plate assembly 1, so that the arrangement of the first metal thimble 61 and the second metal thimble 62 can be facilitated.

Fig. 10 is a side view of another embodiment of the cover plate assembly provided in the examples of the present application, and as a possible embodiment, as shown in fig. 3, 8 and 10, in the thickness direction (Z) of the cover plate assembly 1, the thickness dimension of the first connection portion 121c is greater than that of the second connection portion 123c, and the first connection portion 121c and the second connection portion 123c are flush. Therefore, the first metal thimble 61 and the second metal thimble 62 can be set to have the same specification, so that the material preparation during assembly is convenient.

As a possible embodiment, the negative electrode layer 123 is made of a porous material, and as shown in fig. 6, the negative electrode layer 123 includes a plurality of holes 123d through which gas can be discharged after the water vapor is electrolyzed.

As a possible implementation manner, a touch screen 13 may be further disposed on a side of the cover plate 11 away from the display screen 3, and when the cover plate assembly 1 is applied to the access control system 100, the touch screen 13 may be operated to trigger the display screen 3 to operate.

Figure 11 is a perspective view of yet another embodiment of a cover plate assembly provided by an example of the present application,

fig. 12 is a front view of a partial structure of the cover plate assembly shown in fig. 11, and as a possible implementation manner, as shown in fig. 11 and 12, the cover plate assembly 1 further includes a second dehumidifying unit 14, and the second dehumidifying unit 14 forms a receiving area 141 for receiving the camera 22 in the cover plate 11.

In this embodiment, the camera 22 may be a binocular camera, including an infrared camera and a visible light camera. Accordingly, the accommodation regions 141 are two. The lens front end of the camera 22 is substantially against the cover plate 11 and may have a small clearance from the cover plate 11, which may cause condensation of water vapor or water droplets. The camera 22 is accommodated in the accommodating area 141, and the periphery of the accommodating area 141 is dehumidified by the second dehumidifying unit 14, so that the imaging effect is improved, and image acquisition is facilitated.

As a possible implementation, the accommodation areas 141 are two corresponding to the binocular cameras described above. Furthermore, the first dehumidification unit 12 and/or the second dehumidification unit 14 may be disposed between the two accommodation areas 141, so as to achieve a better dehumidification effect.

The second dehumidifying unit 14 may have the same structure as the first dehumidifying unit 12, and the positive electrode layer of the second dehumidifying unit 14 may be disposed close to the accommodating area 141, and the electrolyte layer and the negative electrode layer may be sequentially disposed in a direction away from the accommodating area 141, so that moisture in the accommodating area 141 can be removed from the inside to the outside.

A power source may be used to supply power to the first dehumidifying unit 12, and the controller controls the operation of the power source by determining whether the image detected by the camera 22 is clear. Specifically, if the image detected by the camera 22 is clear, indicating that there is no visible moisture in the area near the camera 22, the power supply may be controlled to be off. If the image detected by the camera 22 is not clear, it indicates that there is condensation of water vapor in the area near the camera 22, and the power supply may be controlled to supply power to the first dehumidifying unit 12, so that the first dehumidifying unit 12 operates normally.

As one possible implementation, the electrolyte layer 122 has a film-like or plate-like shape.

Further, the electrolyte layer 122 is composed of an electrolyte having proton conductivity. As the electrolyte constituting the electrolyte layer 122, for example, a fluorine-based proton-conducting electrolyte such as a perfluoroalkylsulfonic acid resin can be used. And polymer electrolytes obtained by introducing proton conductive groups such as sulfonic acid groups and phosphoric acid groups into polyether ketone, polyether ether ketone, polyether sulfone, and the like.

The electrolyte layer 122 has a property of adsorbing moisture (water vapor) contained in the air and a property of being gas impermeable.

A catalyst for promoting an electrolytic reaction in the electrolyte layer 122 is formed on the surface of the electrolyte layer 122 (the surface facing the positive electrode layer 121 and the negative electrode layer 123). The catalyst may be a metal of platinum group elements such as Pt, Ru, Rh, Ir, Os, Pd, etc., or an alloy containing these platinum group elements. Among them, Pt having high catalytic activity is preferably used.

By forming the catalyst on the surface of the electrolyte layer 122, the electrolysis of water in the electrolyte layer 122 becomes easier, and the camera 22 and/or the display 3 housed in the housing area 13 described above are dehumidified more quickly.

Positive electrode layer 121 and negative electrode layer 123 are used to apply a predetermined voltage to electrolyte layer 122. In the present embodiment, the positive electrode layer 121 is electrically connected to the surface of the electrolyte layer 122 facing the housing region 13, and functions as a positive electrode. Negative electrode layer 123 is electrically connected to the other surface of electrolyte layer 122 (the surface opposite to the surface to which positive electrode layer 121 is connected), and functions as a negative electrode.

Positive electrode layer 121 and negative electrode layer 123 are made of a material having electrical conductivity. Negative electrode layer 123 is an electrode layer having a porous structure. For example, a mesh-like or fiber-like metal material may be used, and the mesh-like or fiber-like metal material may be used as the positive electrode layer 121, so that moisture (water vapor) in the housing region 13 can easily pass therethrough. Further, by using a mesh-like or fiber-like metal material as negative electrode layer 123, hydrogen, water vapor, and the like generated by the reduction reaction occurring at negative electrode layer 123 become easy to pass through negative electrode layer 123 and be discharged to the outside of accommodation region 13.

In addition, negative electrode layer 123 may be formed of a metal plate having a plurality of holes 123d formed therein.

Negative electrode layer 123 may be made of a porous material having electrical conductivity and gas permeability. As such a porous material, a porous carbon plate or the like on which metal particles are supported may be used.

Fig. 13 is a schematic diagram of an operation of a cover plate assembly according to an embodiment of the present application, and as shown in fig. 13, a specific operation principle of the first dehumidification unit 12 is as follows:

first, the power supply supplies power to the first dehumidifying unit 12, and at this time, the moisture of the positive electrode layer 121 enters the electrolyte layer 122 to be electrolyzed, thereby generating protons (hydrogen ions H)⁺) Electron and oxygen (O)₂)。H₂O→1/2O₂+2H⁺+2e^-。

Under the action of the built-in electric field of the positive electrode layer 121 and the electrolyte layer 122, hydrogen ions move to the negative electrode layer 123 side, so that water vapor is discharged to the outside of the cover plate assembly 1 or other areas of the product, and the following reactions are realized: 1/2O₂+2H⁺+2e^-→H₂O, thereby achieving the purpose of eliminating the water vapor/water drops in the area of the display screen 3.

As shown in fig. 3, in the cover plate assembly 1 provided in the embodiment of the present application, a first glue layer 15, a first ITO film layer 16, a first glass substrate 17, a second ITO film layer 18, and a second glue layer 19 may be further disposed between the cover plate 11 and the touch screen 13.

The first adhesive layer 15 is used for bonding the cover plate 11 and the first ITO film layer 16, the first ITO film layer 16 generally plates an ITO thin film on the reverse side of the cover plate 11 through a vacuum ion sputtering process, and then an RX or TX channel of the touch screen is formed through exposure, development and etching, which is different from the second ITO film layer 18 in that when the first ITO film layer 16 is etched in the horizontal direction, the second ITO film layer 18 is etched in the vertical direction, and the number of the vertically etched channels is related to the size and precision of the touch screen.

The two sides of the first glass substrate 17 are respectively provided with an ITO film (a first ITO film layer 16 and a second ITO film layer 18), the ITO films are respectively plated on the front side and the back side of the first glass substrate 17 through a vacuum ion sputtering process, and then TX or RX channels of the touch screen are formed through exposure, development and etching methods.

The second ITO film 18 is typically an N-type oxide semiconductor (ITO) or the like, and is a mature material. ITO thin films, i.e., transparent conductive films of indium tin oxide semiconductor, generally have two electrical performance criteria: resistivity and light transmittance, wherein the light transmittance is when the thickness is reduced to 1800 angstroms (1 angstrom-10)^-10m) or less, the film becomes transparent suddenly, and the light transmittance is 80% or more. The ITO film is generally applied to the front surface of the first glass substrate 17 by a vacuum ion sputtering process, and then TX or RX channels of the touch screen are formed by exposure, development and etching, wherein the number of horizontal etching channels is related to the size and precision of the touch screen.

The second adhesive layer 19 is used for attaching the touch screen 13 to the second ITO film layer 18.

As shown in fig. 2, the access control system 100 provided in the embodiment of the present application includes a display screen 3, and further includes a cover plate assembly 1 provided in any embodiment of the present application, and a cover plate 11 is covered on the display screen 3.

The access control system 100 that this application embodiment provided is provided with the apron subassembly 1 that has first dehumidification unit 12, and first dehumidification unit 12 can be by interior and outwards discharge the steam of apron subassembly 1, can reach better dehumidification effect to apron subassembly 1.

As a possible implementation manner, the access control system 100 further includes a first supporting member 7 and a second supporting member 8 connected to each other, and the cover plate assembly 1 is disposed on a side of the first supporting member 7 away from the second supporting member 8. In the camera head assembly 2, the base 21 may be disposed on the second support member 8, and the camera head 22 is received in the receiving area 141 after passing through the second support member 8 and the first support member 7. As a possible implementation manner, the access control system 100 further includes a control motherboard 5 and a power supply, the power supply is disposed on the control motherboard 5, the control motherboard 5 and the power supply are both disposed on the second support member 8, and an output electrode of the power supply is connected to the positive electrode layer 121 and the negative electrode layer 123 respectively. As mentioned above, the controller may be used to determine moisture, and thus control the power on to operate the first dehumidification unit 12. The above-described controller may also be provided on the control main board 5. A water vapor sensor can be arranged at the position, close to the display screen 3, of the cover plate assembly 1, water vapor quantity is collected through the water vapor sensor, and when the water vapor quantity exceeds a set threshold value, the controller controls the power supply to start, so that the first dehumidifying unit 12 works. When the amount of the water vapor does not exceed the set threshold value, the controller controls the power supply not to be started, so that the first dehumidifying unit 12 does not work.

As a possible implementation manner, the access control system 100 further includes a metal thimble 6 disposed on the control main board 5, and the metal thimble 6 includes a first metal thimble 61 and a second metal thimble 62. The first metal thimble 61 is connected between the positive electrode of the power supply and the positive electrode layer 121, and the second metal thimble 62 is connected between the negative electrode of the power supply and the negative electrode layer 123. The first metal thimble 61 and the second metal thimble 62 may function as a conducting wire to ensure that the first dehumidifying unit 12 has safe and reliable working current.

As a possible implementation manner, the access control system 100 further includes a heat dissipation component 4, the heat dissipation component 4 may specifically be a fan, and the heat dissipation component 4 is disposed on the second support 8.

In this embodiment, an accommodating space is formed between the second supporting member 8 and the rear case (not shown), the control main board 5 and the base 21 are both accommodated in the accommodating space, the heat dissipation member 4 is arranged to accelerate air circulation, and H is generated by decomposing water vapor in the region corresponding to the camera 22 and the display screen 3⁺The air can be discharged to the outside of the access control system 100 more quickly, and due to the different temperature rise of the elements of the access control system 100, especially the temperature of the camera 22 and the display screen 3 is higher, the air flow formed by the temperature difference can also discharge the H⁺To the outside of the access control system 100 or other areas inside the access control system 100.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cover plate assembly (1), comprising:

a cover plate (11);

a first dehumidifying unit (12) disposed at one side of the cover plate (11); the first dehumidification unit (12) comprises a positive electrode layer (121), an electrolyte layer (122) and a negative electrode layer (123); the positive electrode layer (121) is attached to the cover plate (11), and the positive electrode layer (121), the electrolyte layer (122) and the negative electrode layer (123) are sequentially stacked in the direction away from the cover plate (11).

2. The cover plate assembly (1) according to claim 1, wherein the first dehumidifying unit (12) comprises a gap (124) for passing moisture.

3. The cover plate assembly (1) according to claim 2, wherein the positive electrode layer (121) comprises a plurality of first strip-shaped portions (121a), a first gap (121b) being formed between the plurality of first strip-shaped portions (121 a);

the electrolyte layer (122) comprises a plurality of second strip-shaped portions (122a), and second gaps (122b) are formed among the second strip-shaped portions;

the negative electrode layer (123) comprises a plurality of third strip-shaped parts (123a), and third gaps (123b) are formed among the third strip-shaped parts (123 a);

the first gap (121b), the second gap (122b), and the third gap (123b) collectively form the gap (124).

4. The cover plate assembly (1) according to claim 1, wherein the positive electrode layer (121) comprises a first connection portion (121c) for connection with a positive electrode of a power supply; the negative electrode layer (123) includes a second connection portion (123c) for connection with a negative electrode of a power source.

5. The cap assembly (1) according to claim 4, wherein a length dimension of the first connection portion (121c) is greater than a length dimension of the second connection portion (123c) in a width direction (X) of the cap assembly (1).

6. The cover plate assembly (1) according to claim 5, wherein the thickness dimension of the first connecting portion (121c) is greater than the thickness dimension of the second connecting portion (123c) in the thickness direction (Z) of the cover plate assembly (1), and the first connecting portion (121c) and the second connecting portion (123c) are flush.

7. The cover plate assembly (1) according to claim 1, wherein the negative electrode layer (123) is a porous material.

8. The cover plate assembly (1) according to claim 1, wherein the cover plate assembly (1) further comprises a touch screen (13), the touch screen (13) being arranged on a side of the cover plate (11) remote from the first dehumidification unit (12).

9. The cover plate assembly (1) according to claim 1, characterized in that the cover plate assembly (1) further comprises a second dehumidifying unit (14), the second dehumidifying unit (14) forming a receiving area (141) for receiving a camera (22) at the cover plate (11).

10. An access control system (100) comprising a display screen (3), characterized in that the access control system (100) comprises a cover plate assembly (1) according to any one of claims 1-9;

the cover plate assembly (1) is covered on the display screen (3).

11. The access system (100) of claim 10, wherein the access system (100) further comprises a first support (7) and a second support (8) connected to each other;

the cover plate assembly (1) is arranged on one side, away from the second support (8), of the first support (7);

one side of the display screen (3) far away from the cover plate component (1) is assembled on one side of the first supporting piece (7) far away from the second supporting piece (8).

12. The access control system (100) of claim 11, wherein the access control system (100) further comprises a control main board (5) and a power supply, wherein the power supply is arranged on the control main board (5); the control main board (5) and the power supply are both arranged on the second supporting piece (8);

and the output electrode of the power supply is respectively connected with the positive electrode layer (121) and the negative electrode layer (123).

13. The access control system (100) of claim 12, wherein the access control system (100) further comprises a metal thimble (6) disposed on the control main board (5);

the metal thimble (6) comprises a first metal thimble (61) and a second metal thimble (62);

the first metal thimble (61) is connected between the output electrode of the power supply and the positive electrode layer (121);

the second metal thimble (62) is connected between the output electrode of the power supply and the negative electrode layer (123).

14. Access control system (100) according to any of claims 10-13, characterized in that the access control system (100) further comprises a heat sink (4);

the heat dissipation member (4) is disposed on the second support member (8).