Camera

Abstract

The utility model discloses a camera. The camera comprises an outer shell, a camera assembly and an antenna assembly, a containing cavity is formed in the outer shell, and the camera assembly is arranged on the outer shell and seals the containing cavity. The antenna assembly is arranged in the containing cavity and electrically connected with the camera assembly, the antenna assembly comprises an antenna support and an antenna group arranged on the antenna support, the antenna group comprises at least two antennas, the antenna support comprises at least two installation faces used for arranging the antennas, and a cavity extending in the optical axis direction of the camera assembly is formed between the installation faces. According to the camera, the assembling process of the multi-system fusion antenna is simplified, the timeliness is improved, the antenna has high universality, and the problem that the transmission capacity is different due to the fact that antennas of different products are not uniformly arranged can be solved.

Description

Technical Field

[0001] The present application relates to the field of camera equipment, and in particular to a camera. Background Art

[0002] As people's safety awareness increases, front-end IPC products that integrate camera, monitoring, communication and other functions are increasingly widely used. Most front-end IPC products are in the form of cylinders. Even among different products in the form of cylinders, the internal antennas need to be redesigned. If the internal components are redesigned and produced, the product development cycle will be longer and the cost will be higher. Also, because there is no unified antenna layout for different types of front-end IPC products, the signal transmission capabilities of different products are different. Utility Model Content

[0003] The purpose of the present application is to provide a camera that is helpful in solving the problem that antennas of different types of cameras are not arranged in a unified manner, which may easily affect the signal transmission capability of the camera due to the inconsistent antenna arrangement.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] The present application provides a camera, which includes an outer shell, a camera assembly and an antenna assembly; a accommodating cavity is formed in the outer shell; the camera assembly is installed in the outer shell and closes the accommodating cavity; the antenna assembly is arranged in the accommodating cavity and is electrically connected to the camera assembly, the antenna assembly includes an antenna bracket and an antenna group arranged on the antenna bracket, the antenna group includes at least two antennas, the antenna bracket includes at least two mounting surfaces for setting the antennas, and a cavity extending along the optical axis direction of the camera assembly is formed between the mounting surfaces.

[0006] Furthermore, the mounting surface includes at least a first mounting surface, a second mounting surface and a third mounting surface, the first mounting surface and the second mounting surface are perpendicular to the third mounting surface and are distributed on both sides of the third mounting surface, and a first sub-chamber and a second sub-chamber are respectively formed between the first mounting surface and the chamber and between the second mounting surface and the chamber to prevent signal interference between antennas; the antenna bracket also includes a partition arranged between the chamber and the third mounting surface, a third sub-chamber is formed between the partition and the third mounting surface, and a snap-on structure for fixing the antenna is arranged on the side of the partition away from the third sub-chamber; the antenna bracket also includes a reinforcing rib connected to the third mounting surface, and a cable management groove for combing the cables of the camera is opened on the reinforcing rib.

[0007] Furthermore, a sub-chamber is provided between the chamber and any side mounting surface to prevent signal interference between antennas, and the mounting surface includes at least a first mounting surface, a second mounting surface and a third mounting surface, and the first mounting surface, the second mounting surface and the third mounting surface are distributed circumferentially around the optical axis of the camera assembly.

[0008] Furthermore, a buckle structure is provided on a side of the antenna bracket facing away from the third mounting surface, and the antenna includes a GPS antenna, which is a ceramic antenna, and the GPS antenna is buckled on the antenna bracket through the buckle structure.

[0009] Furthermore, the camera includes a cable electrically connected to the camera assembly, and the antenna bracket also includes a partition parallel to the third mounting surface, a third sub-chamber for laying cables is arranged between the partition and the third mounting surface, and the snap-fit ​​structure is at least partially arranged on a side of the partition away from the third sub-chamber.

[0010] Furthermore, the antenna bracket also includes a reinforcing rib connected to the third mounting surface, defining a projection plane perpendicular to the optical axis direction, the reinforcing rib and the projection of the third sub-chamber on the projection plane along the optical axis direction basically overlap, and the reinforcing rib is provided with a cable management groove for combing cables.

[0011] Furthermore, the antenna assembly also includes a first circuit board, which is electrically connected to the antenna group. The first circuit board includes at least two positioning holes. The antenna bracket has a corresponding number of positioning columns extending toward the first circuit board. The antenna bracket is installed on the first circuit board through the cooperation of the positioning columns and the positioning holes.

[0012] Furthermore, the antenna assembly also includes a heat dissipation module located between the first circuit board and the antenna bracket. The heat dissipation module is fixedly arranged on the first circuit board and at least partially extends into the cavity.

[0013] Furthermore, the antenna includes at least one of a Lora antenna, a NB antenna, a BT antenna, a 4G antenna, a 5G antenna and a WiFi antenna, and at least one of each type of antenna is an antenna radiator, and the antenna radiator is attached to the mounting surface.

[0014] Furthermore, the antenna assembly also includes an electrical connector, and each antenna is electrically connected to the first circuit board via the electrical connector, wherein the electrical connector is at least one of a radio frequency cable and a feeding spring.

[0015] The present application provides a camera, which includes an outer shell, a camera assembly and an antenna assembly, wherein the antenna assembly is detachably mounted on the camera assembly, and the antenna assembly includes a first circuit board, an antenna bracket and an antenna group, so that the antenna assembly as a whole can be adapted to different types of cameras, so as to facilitate the unified arrangement of the antenna group. In addition, the antenna group after the unified arrangement can avoid the problem of unstable signal transmission capability of the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of the camera in the embodiment of the present application.

[0017] Figure 2 1 is an exploded view of the antenna assembly in an embodiment of the present application.

[0018] Figure 3 This is a partial schematic diagram of the camera assembly in an embodiment of the present application.

[0019] Figure 4 This is a schematic diagram of the first viewing angle of the antenna bracket in an embodiment of the present application.

[0020] Figure 5 This is a schematic diagram of the second viewing angle of the antenna bracket in the embodiment of the present application.

[0021] Figure 6 1 is a waveform diagram of the radiation efficiency of ANT0 and ANT3 in the embodiment of the present application.

[0022] Figure 7 1 is a waveform diagram of the radiation efficiency of ANT1 and ANT2 in the embodiment of the present application.

[0023] Figure 8 1 is a waveform diagram of the ANT0 return loss in the embodiment of the present application.

[0024] Fig. 9 1 is a waveform diagram of the return loss of ANT1 in the embodiment of the present application.

[0025] Fig.10 ANT2 return loss waveform diagram in the embodiment of the present application.

[0026] Fig.11 ANT3 return loss waveform in the embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the specific implementation manner of the present application will be clearly and completely described below in conjunction with the drawings in the implementation manner of the present application.

[0028] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0030] This application provides Figure 1 A camera 100 is shown, which includes an outer shell 11, a camera assembly 12 and an antenna assembly 13. The outer shell 11 is surrounded by a receiving cavity 111 for receiving the antenna assembly 13 and at least part of the camera assembly 12. The outer shell 11 has an opening, and the receiving cavity 111 is connected to the outside through the opening. The camera assembly 12 is installed at the opening of the outer shell 11 and closes the receiving cavity 111. The antenna assembly 13 is detachably arranged on the camera assembly 12 and is electrically connected to the camera assembly 12. In order to clearly describe the embodiments of the present application, the following is also provided. Figure 1 The up-down, left-right, and front-back directions shown are the up-down, left-right, and front-back directions when the camera 100 is in an operating state.

[0031] like Figure 2 As shown, as an implementation, the antenna assembly 13 includes a first circuit board 131, an antenna bracket 132 and an antenna group 133, wherein the first circuit board 131 is detachably disposed on the rear side of the camera assembly 12 and is electrically connected to the camera assembly 12.

[0032] Specifically, the first circuit board 131 is mainly used to place the wireless standard module to ensure the normal transmission of the wireless signal and meet the wireless communication distance requirements of the product. At the same time, it can also improve the signal strength and coverage of the camera 100, and effectively improve the signal receiving ability of the camera 100. In addition, the first circuit board 131 can also improve the quality of signal reception, provide a higher data transmission rate, reduce signal attenuation, and ensure the connection stability of the network.

[0033] Further, the antenna bracket 132 is detachably disposed on the first circuit board 131, the first circuit board 131 includes at least two positioning holes 1311, the antenna bracket 132 has a corresponding number of positioning posts 1321 extending in the direction of the first circuit board 131, and the antenna bracket 132 is installed on the first circuit board 131 through the cooperation of the positioning posts 1321 and the positioning holes 1311, so as to limit the antenna bracket 132 in a direction perpendicular to the optical axis of the camera assembly 12, thereby improving the assembly efficiency of the antenna bracket 132. Among them, the optical axis direction of the camera assembly 12 is substantially parallel to the front-rear direction of the camera 100.

[0034] Optionally, the antenna bracket 132 can be detachably disposed on the camera assembly 12, or the antenna bracket 132 can be detachably disposed on the outer shell 11. Since various types of cameras 100 can share a unified antenna bracket 132, but the first circuit board 131 can be replaced according to product requirements, the location and fixing method of the antenna bracket 132 are not specifically limited.

[0035] As an implementation, the antenna bracket 132 is made of plastic to prevent the antenna bracket 132 from interfering with the signal transmission of the antenna group 133. The antenna bracket 132 includes at least two discontinuous mounting surfaces 1322, and a gap is formed between two adjacent mounting surfaces 1322 to prevent the antennas in the antenna group 133 from interfering with each other.

[0036] Specifically, the antenna group 133 includes at least two antennas 1331 . Each antenna 1331 is disposed on a corresponding mounting surface 1322 . Each antenna 1331 is electrically connected to the first circuit board 131 .

[0037] like Figure 3 As shown, illustratively, the camera assembly 12 at least includes a fixing plate 121, a second circuit board 122 and a camera 123. The fixing plate 121 is a metal part, the second circuit board 122 is fixedly arranged on the fixing plate 121, and the camera 123 is electrically connected to the second circuit board 122. The first circuit board 131 is detachably arranged on a side of the fixing plate 121 away from the second circuit board 122, and the first circuit board 131, the fixing plate 121 and the second circuit board 122 are stacked to improve the compactness of the camera assembly 12 and the antenna assembly 13.

[0038] Through the above configuration, the antenna group 133 and the antenna bracket 132 as a whole can be adapted to different types of cameras 100, so as to facilitate the unified arrangement of the antenna group 133. The uniformly arranged antenna group 133 can avoid the problem of unstable signal transmission capability of the camera 100.

[0039] like Figure 4 and Figure 5 As shown, as an implementation method, a chamber 1323 extending along the optical axis direction of the camera assembly 12 is formed between at least two mounting surfaces 1322, and a sub-chamber 1324 is provided between the chamber 1323 and the mounting surface 1322 on either side to prevent mutual interference between the antennas 1331.

[0040] Specifically, the mounting surface 1322 at least includes a first mounting surface 1322a, a second mounting surface 1322b and a third mounting surface 1322c, wherein the first mounting surface 1322a and the second mounting surface 1322b are respectively located on the left and right sides of the third mounting surface 1322c. The first mounting surface 1322a, the second mounting surface 1322b and the third mounting surface 1322c surround and form the chamber 1323.

[0041] Exemplarily, the first mounting surface 1322a is the left end surface of the antenna bracket 132, the second mounting surface 1322b is the right end surface of the antenna bracket 132, and the first mounting surface 1322a and the second mounting surface 1322b are parallel to each other. The third mounting surface 1322c is the upper end surface of the antenna bracket 132, and the third mounting surface 1322c is perpendicular to the first mounting surface 1322a and the second mounting surface 1322b. This allows the antenna group 133 to have a larger radiation range and solves the problem of signal interference between the antennas 1331.

[0042] Further, the sub-chamber 1324 includes a first sub-chamber 1324a and a second sub-chamber 1324b, wherein the first sub-chamber 1324a is disposed between the first mounting surface 1322a and the chamber 1323, and the second sub-chamber 1324b is disposed between the second mounting surface 1322b and the chamber 1323. Through the above arrangement, the distance between the antenna 1331 and other metal parts is increased, ensuring that the antenna 1331 has a good clearance environment. In this way, signal interference between the antenna 1331 and metal parts, or between the antennas 1331 and 1331, is avoided.

[0043] A projection plane perpendicular to the optical axis is defined. In the embodiment of the present application, the projections of the first sub-chamber 1324a and the second sub-chamber 1324b on the projection plane along the optical axis are substantially rectangular.

[0044] It should be noted that the projection shapes of the first sub-chamber 1324a and the second sub-chamber 1324b are not limited to rectangles, but may be any other shapes.

[0045] As an implementation method, the antenna 1331 includes at least one of a Lora antenna, a NB antenna, a BT antenna, a 4G antenna, a 5G antenna and a WIFI antenna. At least one of the above-mentioned types of antennas 1331 is an antenna radiator, and the antenna radiator is attached to the mounting surface 1322. The antenna radiator is connected to the first circuit board 131 through a feeding network.

[0046] Optionally, the 4G antenna is attached to the first mounting surface 1322a, the 5G antenna is attached to the second mounting surface 1322b, and the medium and high frequency wireless standard antennas such as WIFI or LTE are attached to the third mounting surface 1322c.

[0047] Although the embodiments of the present application illustrate the locations of the antennas 1331 , in fact, at least one antenna 1331 may be arranged on the same mounting surface 1322 , and there is no limitation on the type of antenna 1331 arranged on the same mounting surface 1322 , so as to achieve a better signal radiation effect.

[0048] like Figure 5As shown, as an implementation method, a snap-fit ​​structure 1325 is provided on the side of the antenna bracket 132 away from the third mounting surface 1322c, and the antenna 1331 also includes a GPS antenna, wherein the GPS antenna is a ceramic antenna, and the GPS antenna is snap-fitted to the antenna bracket 132 through the snap-fit ​​structure 1325.

[0049] It should be noted that the first mounting surface 1322a, the second mounting surface 1322b, the third mounting surface 1322c and the snap structure 1325 are respectively facing the four directions (up and down directions, left and right directions) of the camera 100, and appear to be 360° uniformly radiated in the horizontal direction diagram, thus avoiding mutual interference between the antennas 1331.

[0050] In the embodiment of the present application, the antenna bracket 132 also includes a partition 1326 parallel to the third mounting surface 1322c, and a third sub-chamber 1324c is provided between the partition 1326 and the third mounting surface 1322c. The camera 100 also includes a cable (not shown in the figure) electrically connected to the camera assembly 12, wherein the cable includes at least a power line and a 485 line. The cable passes through the third sub-chamber 1324c along the optical axis direction of the camera assembly 12 and is electrically connected to the camera assembly 12. The third sub-chamber 1324c can avoid the problem of scattered cable layout and reduce the influence of non-RF cables on the consistency of each antenna 1331.

[0051] Exemplarily, the snap-fit ​​structure 1325 is at least partially disposed on the partition 1326 , and the third sub-chamber 1324 c between the partition 1326 and the third mounting surface 1322 c can avoid signal interference between antennas 1331 of different types, thereby improving the stability of signal transmission of the camera 100 .

[0052] like Figure 4 As shown, as an implementation method, the antenna assembly 13 also includes a heat dissipation module 134 for cooling the antenna group 133 and the first circuit board 131. The heat dissipation module 134 is fixedly disposed on the first circuit board 131. The heat dissipation module 134 is at least partially disposed between the first circuit board 131 and the antenna bracket 132.

[0053] Specifically, the heat dissipation module 134 has a plurality of rib structures 1341 extending toward the antenna bracket 132, thereby increasing the heat dissipation area of ​​the heat dissipation module 134. The rib structure 1341 of the heat dissipation module 134 is disposed in a cavity 1323 formed by the first mounting surface 1322a, the second mounting surface 1322b, and the third mounting surface 1322c, thereby making the antenna assembly 13 more compact as a whole, so as to facilitate adaptation to cameras 100 of different models.

[0054] like Figure 4As shown, further, the antenna bracket 132 also includes a reinforcing rib 1327 connected to the third mounting surface 1322c, and the reinforcing rib 1327 and the projection of the third sub-chamber 1324c on the projection plane along the optical axis direction are substantially overlapped.

[0055] In some examples, a cable management groove 1327a is provided on the reinforcing rib 1327, and the cable passes through the third sub-chamber 1324c and the cable management groove 1327a in sequence along the optical axis direction of the camera assembly 12, and is electrically connected to the camera assembly 12. The cables of the camera 100 are arranged through the third sub-chamber 1324c and the cable management groove 1327a to avoid the cables from affecting the consistency of the antenna 1331, and the influence of the non-antenna 1331 cables on the consistency of the antenna 1331 can be reduced.

[0056] As an implementation method, the antenna assembly 13 also includes an electrical connector (not shown in the figure), and each antenna 1331 attached to the mounting surface 1322 is electrically connected to the first circuit board 131 through the electrical connector, wherein the electrical connector includes but is not limited to at least one of a radio frequency cable and a feed spring.

[0057] In the embodiment of the present application, the first circuit board 131 has a corresponding number of feeding spring pins, and each antenna 1331 attached to the first mounting surface 1322a, the second mounting surface 1322b and the third mounting surface 1322c cooperates with the feeding spring sheet and the feeding spring pin to realize signal transmission between the antenna 1331 and the first circuit board 131, thereby improving the assembly rate of the antenna component 13, and the consistency and reliability of each antenna 1331 can be guaranteed.

[0058] The mechanical strength between the antenna 1331 and the first circuit board 131 is increased by connecting the feeding spring clips. Since the feeding spring clips have good elasticity and can withstand greater mechanical stress, the connection parts of the antenna 1331 can be effectively protected to avoid damage caused by mechanical damage, thereby ensuring that the radiator of the antenna 1331 is well connected to the first circuit board 131. In addition, the feeding spring clips can form a larger contact area with the contact surface of the antenna 1331, thereby improving the stability and reliability of signal transmission.

[0059] It should be noted that the camera 100 provided in the present application includes but is not limited to a cylindrical camera 100, a spherical camera 100, etc. By integrating the antenna bracket 132 and the antenna group 133 into an integral component, a unified arrangement of the antenna 1331 of the camera 100 can be achieved, so that the antenna assembly 13 is adapted to different models of cameras 100, thereby reducing the production cost of the camera 100. In addition, the antenna 1331 of the unified arrangement can avoid the problem of differences in signal transmission capabilities of different products.

[0060] like Figure 6 and Figure 7 The waveform diagram of the radiation efficiency of ANT0, ANT1, ANT2 and ANT3 shown in FIG. 1 is a waveform diagram of the radiation efficiency of ANT0, ANT1, ANT2 and ANT3. Among them, ANT0, ANT1, ANT2 and ANT3 are several interfaces on the first circuit board 131 for connecting the antenna group 133. In this embodiment, ANT0 corresponds to the antenna 1331 on the second mounting surface 1322b; ANT1 and ANT2 correspond to the antenna 1331 on the third mounting surface 1322c; ANT3 corresponds to the antenna 1331 on the first mounting surface 1322a. Through the above settings, the antenna 1331 of the camera 100 has a higher radiation efficiency.

[0061] like Figures 8 to 11 As shown, according to the actual measurement of the whole machine, the return loss of the antenna 1331 corresponding to ANT0 and ANT3 in the 700-960MHz, 1710-2690MHz and 3300-5000MHz frequency bands is less than -5dB, and the radiation efficiency of the antenna 1331 corresponding to ANT0 is greater than 40%, and the antenna 1331 corresponding to ANT3 is basically greater than 40% except for the high-frequency part of the frequency band. The return loss of the antenna 1331 corresponding to ANT1 and ANT2 in the 2110-2690MHz and 3300-5000MHz frequency bands is less than -5dB, the radiation efficiency of the antenna 1331 corresponding to ANT1 is greater than 40%, and the radiation efficiency of the antenna 1331 corresponding to ANT2 is greater than 30%.

[0062] In summary, the antenna bracket 132 provided in the embodiment of the present application allows the antenna assembly 13 to form a whole, so that the antenna assembly 13 can be adapted to different models of cameras 100, reducing the product development cycle and thus reducing costs. In addition, cameras 100 of various models can achieve a unified arrangement of antennas 1331, so that each antenna 1331 has good radiation efficiency, solving the problem of differences in signal transmission capabilities of different products.

[0063] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A camera, characterized in that: include: An outer shell, wherein a receiving cavity is formed in the outer shell; A camera assembly, the camera assembly is mounted on the outer shell and closes the accommodating cavity; An antenna assembly is disposed in the accommodating cavity and electrically connected to the camera assembly. The antenna assembly includes an antenna bracket and an antenna group disposed on the antenna bracket. The antenna group includes at least two antennas. The antenna bracket includes at least two mounting surfaces for setting the antennas. A cavity extending along the optical axis direction of the camera assembly is provided between the mounting surfaces.

2. The camera according to claim 1, characterized in that The mounting surface at least includes a first mounting surface, a second mounting surface and a third mounting surface, the first mounting surface and the second mounting surface are perpendicular to the third mounting surface and are distributed on both sides of the third mounting surface, and a first sub-chamber and a second sub-chamber for preventing signal interference between the antennas are formed between the first mounting surface and the chamber and between the second mounting surface and the chamber respectively; The antenna bracket also includes a partition plate arranged between the chamber and the third mounting surface, a third sub-chamber is provided between the partition plate and the third mounting surface, and a snap-on structure for fixing the antenna is provided on the side of the partition plate away from the third sub-chamber; the antenna bracket also includes a reinforcing rib connected to the third mounting surface, and a cable management groove for combing the cables of the camera is provided on the reinforcing rib.

3. The camera according to claim 1, characterized in that A sub-chamber is provided between the chamber and the mounting surface on either side to prevent signal interference between the antennas. The mounting surface includes at least a first mounting surface, a second mounting surface and a third mounting surface. The first mounting surface, the second mounting surface and the third mounting surface are distributed circumferentially around the optical axis of the camera assembly.

4. The camera according to claim 3, characterized in that A buckle structure is provided on a side of the antenna bracket facing away from the third mounting surface. The antenna includes a GPS antenna which is a ceramic antenna. The GPS antenna is buckled on the antenna bracket through the buckle structure.

5. The camera according to claim 3, characterized in that: The camera includes a cable electrically connected to the camera head assembly, and the antenna bracket also includes a partition arranged between the chamber and the third mounting surface, and a third sub-chamber for laying the cable is arranged between the partition and the third mounting surface.

6. The camera according to claim 5, characterized in that The antenna bracket also includes a reinforcing rib connected to the third mounting surface, defining a projection plane perpendicular to the optical axis direction, the reinforcing rib and the projection of the third sub-chamber on the projection plane along the optical axis direction basically overlap, the camera includes a cable electrically connected to the camera assembly, and the reinforcing rib is provided with a cable management groove for combing the cable.

7. The camera according to claim 1, characterized in that The antenna assembly also includes a first circuit board, which is electrically connected to the antenna group. The first circuit board includes at least two positioning holes. The antenna bracket has a corresponding number of positioning columns extending toward the first circuit board. The antenna bracket is installed on the first circuit board through the cooperation between the positioning columns and the positioning holes.

8. The camera according to claim 7, characterized in that The antenna assembly further includes a heat dissipation module located between the first circuit board and the antenna bracket. The heat dissipation module is fixedly disposed on the first circuit board and at least partially extends into the cavity.

9. The camera according to claim 1, characterized in that: The antenna includes at least one of a Lora antenna, a NB antenna, a BT antenna, a 4G antenna, a 5G antenna and a WiFi antenna, and at least one of each type of antenna is an antenna radiator, and the antenna radiator is attached to the mounting surface.

10. The camera according to claim 7, characterized in that The antenna assembly further includes an electrical connector, and each of the antennas is electrically connected to the first circuit board via the electrical connector, wherein the electrical connector is at least one of a radio frequency cable and a feeding spring.

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