CN216600393U - Wireless access panel and wireless communication system - Google Patents
Wireless access panel and wireless communication system Download PDFInfo
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- CN216600393U CN216600393U CN202122958495.7U CN202122958495U CN216600393U CN 216600393 U CN216600393 U CN 216600393U CN 202122958495 U CN202122958495 U CN 202122958495U CN 216600393 U CN216600393 U CN 216600393U
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Abstract
The utility model relates to the technical field of communication equipment, and provides a wireless access panel and a wireless communication system. The metal shell and the nonmetal shell are mutually covered to form the shell, so that the heat dissipation effect of the wireless access panel is improved; in addition, the back plate of the metal shell is provided with the gap part, the gap part is electrically connected with the radio frequency control module in a feed mode, the first antenna radiates signals to the front of the wireless access panel, and meanwhile the gap part radiates signals to the rear of the wireless access panel, so that the omnidirectional coverage performance of the wireless access panel is improved.
Description
Technical Field
The utility model relates to the technical field of communication equipment, in particular to a wireless access panel and a wireless communication system.
Background
The wireless access panel is a device which can provide a wireless network access point for a user, can be embedded in a wall body and has the characteristics of small occupied space, convenience in installation and the like, so that the wireless access panel is widely applied to indoor places such as houses, offices and the like.
At present, the casing of the wireless access panel is generally made of plastic, but the heat conductivity of the plastic is poor, so that the heat dissipation performance of the wireless access panel is reduced. In view of this, some manufacturers change a part of the housing to be made of metal, but since the wireless signal is difficult to penetrate through the metal, the directional diagram of the wireless access panel is broken, so that the omnidirectional coverage performance of the wireless access panel is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a wireless access panel and a wireless communication system, and aims to solve the technical problem that the existing wireless access panel cannot simultaneously give consideration to both heat dissipation performance and omnidirectional coverage performance.
In order to achieve the purpose, the embodiment of the utility model adopts the technical scheme that: a wireless access panel, comprising: the shell comprises a metal shell and a non-metal shell which are mutually covered, the metal shell is provided with a back plate which is arranged opposite to the non-metal shell, and a gap part is arranged on the back plate; the first antenna is arranged in the non-metal shell; and the radio frequency control module is arranged in the shell, and the gap part and the first antenna are respectively in feed connection with the radio frequency control module.
The wireless access panel provided by the embodiment of the utility model at least has the following beneficial effects: the metal shell and the non-metal shell are mutually covered to form the shell, so that heat generated when the wireless access panel works can be effectively transferred to the metal shell and is radiated outwards through the metal shell, and the heat radiation effect of the wireless access panel can be effectively improved; in addition, through set up gap portion and with gap portion and radio frequency control module feed electricity and be connected on metal casing's backplate for form the slot antenna on metal casing's the backplate, when wireless access panel work, first antenna carries out signal radiation to the place ahead of wireless access panel in non-metal casing, and the slot antenna carries out signal radiation to the rear of wireless access panel on metal casing simultaneously, thereby can effectively improve the omnidirectional coverage performance of wireless access panel.
In one embodiment, the wireless access panel further includes a second antenna disposed in the non-metal housing and electrically connected to the rf control module, and the first antenna and the second antenna are disposed on two opposite sides of the non-metal housing respectively.
In one embodiment, the wireless access panel further includes a power conversion module electrically connected to the rf control module, and the power conversion module is disposed between the rf control module and the back plate to cover the gap portion.
In one embodiment, the distance between the power conversion module and the slit part ranges from λ/4 to 3 λ/4, where λ is an operating wavelength of the slit part during radiation.
In one embodiment, the distance between the power conversion module and the slit part is λ/2.
In one embodiment, the slot portion has a feeding point for feeding electrical connection with the rf control module, and the feeding point and a midpoint of the slot portion along the length direction are offset from each other.
In one embodiment, the metal shell further has a side plate, and the side plate is provided with the slit portion.
In one embodiment, the slit portion has a straight structure, an I-shaped structure, an L-shaped structure, or an H-shaped structure.
In one embodiment, the non-metal shell is a plastic shell, a glass shell or a wood shell.
In order to achieve the above object, an embodiment of the present invention further provides a wireless communication device, including the wireless access panel according to any one or more of the above embodiments.
Since the wireless communication device adopts all embodiments of the wireless access panel, at least all beneficial effects of the embodiments are achieved, and no further description is given here.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wireless access panel according to an embodiment of the present invention;
fig. 2 is an exploded view of the wireless access panel of fig. 1;
fig. 3 is a rear view of a metal housing according to an embodiment of the present invention;
fig. 4 is a rear view of a metal shell according to another embodiment of the present invention;
fig. 5 is a rear view of a metal shell according to another embodiment of the present invention;
fig. 6 is a rear view of a metal shell according to still another embodiment of the present invention;
fig. 7 is a directional diagram of a wireless access panel according to an embodiment of the present invention operating in a 2G frequency band;
fig. 8 is a diagram illustrating a radiation pattern of a wireless access panel operating in a 5G frequency band according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
100. a wireless access panel; 110. a housing; 111. a metal housing; 1111. a back plate; 1112. a slit portion; 11121. a feed point; 1113. a side plate; 112. a non-metallic housing; 120. a first antenna; 130. a radio frequency control module; 140. a second antenna; 150. and a power supply conversion module.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and fig. 2, a first aspect of the present invention provides a wireless access panel 100, which includes a housing 110, a first antenna 120, and a radio frequency control module 130. The housing 110 includes a metal housing 111 and a non-metal housing 112, the metal housing 111 and the non-metal housing 112 are covered with each other, wherein the metal housing 111 has a back plate 1111, the back plate 1111 is disposed opposite to the non-metal housing 112, and the back plate 1111 is provided with a slot portion 1112. The first antenna 120 is disposed within the non-metallic housing 112. The rf control module 130 is disposed in the housing 110, and it can be understood that the rf control module 130 may be disposed in the metal casing 111 or the non-metal casing 112, and the slot 1112 and the first antenna 120 are respectively connected to the rf control module 130 through feeding.
First, in a state where the wireless access panel 100 is mounted, the direction in which the surface of the non-metal housing 112 facing away from the metal housing 111 faces the front of the wireless access panel 100, the direction in which the surface of the metal housing 111 facing away from the non-metal housing 112 faces the rear of the wireless access panel 100, and the directions in which the opposite sides of the wireless access panel 100 face each other are the left side and the right side.
Specifically, the slot 1112 and the first antenna 120 are respectively connected to the rf link of the rf control module 130 through an rf line. One long side of the slot 1112 is connected to the inner core of the rf line, and the other long side of the slot 1112 is connected to the outer conductor of the rf line.
Optionally, the metal housing 111 is embedded in a wall, and the non-metal housing 112 is exposed outside the wall, in other words, a surface of the non-metal housing 112 facing away from the metal housing 111 is located in an indoor space, even the non-metal housing 112 is located in the indoor space as a whole, so that the radiation signal of the first antenna 120 can effectively cover the indoor space.
The metal shell 111 and the nonmetal shell 112 are mutually covered to form the shell 110, so that heat generated when the wireless access panel 100 works can be effectively transferred to the metal shell 111 and is radiated outwards through the metal shell 111, and the heat radiation effect of the wireless access panel 100 can be effectively improved; in addition, by providing the slot portion 1112 on the back plate 1111 of the metal housing 111 and feeding and connecting the slot portion 1112 with the rf control module 130, a slot antenna is formed on the back plate 1111 of the metal housing 111, when the wireless access panel 100 operates, the first antenna 120 radiates signals to the front of the wireless access panel 100 in the non-metal housing 112, and the slot antenna radiates signals to the rear of the wireless access panel 100 on the metal housing 111, so that the omnidirectional coverage performance of the wireless access panel 100 can be effectively improved; in addition, the heat generated by the wireless access panel 100 during operation can be quickly dissipated to the outside through the gap 1112, so that the heat dissipation performance of the wireless access panel 100 can be further improved.
In an embodiment, please refer to fig. 2, the wireless access panel 100 further includes a second antenna 140, the second antenna 140 is disposed in the non-metal housing 112, the second antenna 140 is in feeding connection with the rf control module 130, the first antenna 120 and the second antenna 140 are respectively disposed on two opposite sides of the non-metal housing 112, in other words, the first antenna 120 is disposed on one side of the non-metal housing 112, and the second antenna 140 is disposed on the other side of the non-metal housing 112.
By adopting the above technical solution, under the mutual cooperation of the first antenna 120 and the second antenna 140, the wireless access panel 100 can radiate signals to the front, the left side and the right side, and the coverage of the radiated signals of the wireless access panel 100 on the horizontal plane can be further increased, so that the omnidirectional coverage performance of the wireless access panel 100 can be further improved.
It should be noted that the types of the first antenna 120 and the second antenna 140 include, but are not limited to, a patch antenna and a printed antenna.
In one embodiment, please refer to fig. 2, the wireless access panel 100 further includes a power conversion module 150 electrically connected to the rf control module 130, wherein the power conversion module 150 is disposed between the rf control module 130 and the back plate 1111 to cover the gap portion 1112. It is understood that the power conversion module 150 may be disposed in the metal housing 111 or the non-metal housing 112.
The power conversion module 150 is configured to convert an external voltage into a working voltage of the rf control module 130, so as to supply power to the rf control module 130, and the power conversion module 150 is disposed between the rf control module 130 and the back plate 1111, so that the power conversion module 150 can serve as a reflector of the slot antenna, and a radiation signal of the slot antenna is reflected by the power conversion module 150 and then transmitted to the rear of the wireless access panel 100 through the slot 1112, thereby further improving the omnidirectional coverage performance of the wireless access panel 100.
In the above embodiment, the distance between the power conversion module 150 and the slit 1112 ranges from λ/4 to 3 λ/4, where λ is the operating wavelength of the slit 1112 during radiation.
Since the internal space of the wireless access panel 100 is limited, the distance between the power conversion module 150 and the slot 1112 is limited in the above range, which not only satisfies the internal space layout of the wireless access panel 100, but also ensures that the power conversion module 150 can effectively reflect the radiation signal of the slot antenna, thereby improving the omnidirectional coverage performance of the wireless access panel 100.
Specifically, when the distance between the power conversion module 150 and the slot 1112 is λ/2, the reflection efficiency of the power conversion module 150 to the radiation signal of the slot antenna can reach a higher level, so that the omnidirectional coverage performance of the wireless access panel 100 can be further improved.
In one embodiment, as shown in fig. 3, the slot portion 1112 has a feeding point 11121 for feeding connection with the rf control module 130, and the feeding point 11121 and a midpoint of the slot portion 1112 along the length direction are offset from each other, in other words, the feeding point 11121 and the midpoint of the slot portion 1112 along the length direction do not coincide with each other.
Specifically, the feeding point 11121 of the slot 1112 may be deviated upward or downward.
Since the closer the feeding point 11121 is to the midpoint position of the slot portion 1112 in the length direction, the larger the impedance of the slot antenna is, in general, when the feeding point 11121 is located at the midpoint position of the slot portion 1112 in the length direction, the impedance of the slot antenna is 500 Ω, and the impedance of the radio frequency line is 50 Ω, by adopting the above technical scheme, the impedance of the slot antenna can be effectively reduced, thereby realizing good impedance matching of the slot antenna.
In one embodiment, as shown in fig. 2, the metal shell 111 further has a side plate 1113, and the side plate 1113 is provided with a slit 1112. Specifically, the metal housing 111 has two side plates 1113, the two side plates 1113 are disposed opposite to each other and are respectively provided with slot portions 1112, and the slot portions 1112 on the side plates 1113 are in feed connection with the rf control module 130 through rf lines, so that slot antennas are respectively formed on the two side plates 1113.
By adopting the above technical scheme, the wireless access panel 100 can radiate signals to the left side and the right side from the two opposite sides of the metal shell 111 when in operation, so that the omnidirectional coverage performance of the wireless access panel 100 can be further improved.
In one embodiment, please refer to fig. 3, the slit part 1112 is a straight bar structure, and the length L of the slit part 1112 is n × λ/2, where n is a positive integer, and the specific value of n can be adjusted according to the actual application requirement, for example, n can be 1, 2, and the like.
In another embodiment, please refer to fig. 4, the slit part 1112 is of an I-shaped structure, and the length L of the slit part 1112 is n × λ/2, where n is a positive integer, and the specific value of n can be adjusted according to the actual application requirement, for example, n can be 1, 2, and the like.
By using the slot portion 1112 having an I-shaped structure, two lateral sections of the slot portion 1112 can effectively extend the impedance bandwidth of the slot antenna.
In this embodiment, the length L of the slit portion 1112 is the sum of the length of the vertical section of the I-shaped structure and the width of the two horizontal sections of the I-shaped structure, wherein the length of the horizontal section of the I-shaped structure can be adjusted according to the actual application requirement, and is not limited specifically herein.
In another embodiment, please refer to fig. 5, the slit part 1112 is in an L-shaped structure, and the length L of the slit part 1112 is n × λ/2, where n is a positive integer, and the specific value of n can be adjusted according to the actual application requirement, for example, n can be 1, 2, and the like.
Note that, in the present embodiment, the length L of the slit portion 1112 is the sum of the length L1 of the vertical section of the L-shaped structure and the length L2 of the horizontal section of the L-shaped structure.
In another embodiment, as shown in fig. 6, the slit 1112 is in an H-shaped structure, and a vertical segment of the H-shaped structure has a length L1 of n x λ1/2, wherein λ1The radiation wavelength of the vertical section is shown, n is a positive integer, and the specific numerical value of n can be adjusted according to the actual application requirement, for example, n can be 1, 2 and the like; the length L2 of another vertical segment of the H-shaped structure is m x lambda2/2, wherein λ2The radiation wavelength of the vertical section is m is a positive integer, and the specific value of m can be adjusted according to the actual application requirement, for example, m can be 1, 2, and the like.
By adopting the technical scheme, the slot antenna can work at two frequency bands simultaneously, wherein one vertical section of the H-shaped structure corresponds to one working frequency band of the slot antenna, and the other vertical section of the H-shaped structure corresponds to the other working frequency band of the slot antenna.
In one embodiment, the non-metallic housing 112 is a plastic housing, a glass housing, or a wood housing. Of course, the non-metal housing 112 may be made of other materials that can be penetrated by the radiation signal, and is not limited in particular.
As shown in fig. 7, fig. 7 shows a directional diagram of the wireless access panel 100 operating in the 2G frequency band, wherein a thin dotted line represents a directional diagram of the first antenna 120 operating in the 2G frequency band, a large dotted line represents a directional diagram of the second antenna 140 operating in the 2G frequency band, and a solid line represents a directional diagram of the slot antenna operating in the 2G frequency band, as can be seen from fig. 7, the above-mentioned missing corner condition of the directional diagram of the wireless access panel 100 operating in the 2G frequency band is effectively improved, and the omnidirectional coverage performance is better.
As shown in fig. 8, fig. 8 shows the directional diagram of the wireless access panel 100 operating in the 5G frequency band, wherein a thin dotted line represents the directional diagram of the first antenna 120 operating in the 5G frequency band, a large dotted line represents the directional diagram of the second antenna 140 operating in the 5G frequency band, and a solid line represents the directional diagram of the slot antenna operating in the 5G frequency band, as can be seen from fig. 8, the missing corner of the directional diagram of the wireless access panel 100 operating in the 5G frequency band is effectively improved, and the omnidirectional coverage performance is better.
A second aspect of the present invention provides a wireless communication device comprising the wireless access panel 100 of any one or more of the embodiments described above.
Since the wireless communication device adopts all embodiments of the wireless access panel 100, at least all the advantages of the embodiments are achieved, and no further description is given here.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A wireless access panel, comprising:
the shell comprises a metal shell and a non-metal shell which are mutually covered, the metal shell is provided with a back plate which is arranged opposite to the non-metal shell, and a gap part is arranged on the back plate;
the first antenna is arranged in the non-metal shell;
and the radio frequency control module is arranged in the shell, and the gap part and the first antenna are respectively in feed connection with the radio frequency control module.
2. The wireless access panel of claim 1, wherein: the wireless access panel further comprises a second antenna, the second antenna is arranged in the non-metal shell and is electrically connected with the radio frequency control module in a feed mode, and the first antenna and the second antenna are respectively arranged on two opposite sides of the non-metal shell.
3. The wireless access panel of claim 1, wherein: the wireless access panel further comprises a power supply conversion module electrically connected with the radio frequency control module, and the power supply conversion module is arranged between the radio frequency control module and the back plate to cover the gap portion.
4. The wireless access panel of claim 3, wherein: the distance between the power supply conversion module and the gap part ranges from lambda/4 to 3 lambda/4, wherein lambda is the working wavelength of the gap part during radiation.
5. The wireless access panel of claim 4, wherein: the distance between the power supply conversion module and the gap part is lambda/2.
6. The wireless access panel of any of claims 1-5, wherein: the gap part is provided with a feeding point which is used for being in feeding connection with the radio frequency control module, and the feeding point and the midpoint of the gap part along the length direction are arranged in a mutually deviated mode.
7. The wireless access panel of any of claims 1-5, wherein: the metal shell is further provided with a side plate, and the gap portion is arranged on the side plate.
8. The wireless access panel of any of claims 1-5, wherein: the gap part is of a straight strip structure, an I-shaped structure, an L-shaped structure or an H-shaped structure.
9. The wireless access panel of any of claims 1-5, wherein: the non-metal shell is a plastic shell, a glass shell or a wood shell.
10. A wireless communication device, characterized by: the wireless communication device comprising a wireless access panel according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122958495.7U CN216600393U (en) | 2021-11-26 | 2021-11-26 | Wireless access panel and wireless communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122958495.7U CN216600393U (en) | 2021-11-26 | 2021-11-26 | Wireless access panel and wireless communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216600393U true CN216600393U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122958495.7U Active CN216600393U (en) | 2021-11-26 | 2021-11-26 | Wireless access panel and wireless communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216600393U (en) |
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2021
- 2021-11-26 CN CN202122958495.7U patent/CN216600393U/en active Active
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