Control box and display screen
By introducing large-cross-sectional copper busbars and connecting conductors into the circuit board, an efficient current conduction path is formed, solving the problem that traditional circuit boards cannot carry large currents and improving safety and performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN QINGSONG PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-03
Smart Images
Figure CN224460233U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of display devices, and in particular to a control box and display screen. Background Technology
[0002] A grating screen is a type of display screen that incorporates LED light sources. Through its strip-shaped and perforated structure design, it can exhibit unique visual effects. It not only inherits the brightness and clarity advantages of traditional LED displays but also achieves a perfect blend of transparency and aesthetics through its ingenious perforation design. Considering factors such as cost, manufacturing feasibility, and stability, the display area of a single display unit in a grating screen is typically quite large, for example, with a single display unit's dimensions reaching approximately 1000mm*1500mm. Furthermore, to ensure display quality, the brightness of a single display unit is required to be around 8000 nits to 10000 nits, requiring a power supply output current of at least 30A to 40A to provide this brightness.
[0003] However, the copper plating thickness of traditional circuit boards is only 5um to 15um, which is insufficient to carry such a large current. To solve this problem, it is usually necessary to use a single thick copper wire or multiple strands of thin copper wire to make conductors. However, this not only increases the difficulty of wiring and the layout design of the circuit board, but also makes it easy for copper wires to break and fail when bent in narrow spaces, causing safety hazards such as short circuits and fires. Furthermore, excessively long wiring paths within the board can also cause power loss and attenuation problems, affecting the performance of the grating screen. Utility Model Content
[0004] Therefore, it is necessary to provide a control box and display screen to address the problems of difficult wiring layout, potential safety hazards, and power loss and attenuation affecting performance of traditional technologies.
[0005] A first aspect of this application provides a control box, comprising:
[0006] power supply;
[0007] A conduction mechanism, which is electrically connected to the power supply;
[0008] A circuit board, electrically connected to the conductive mechanism, and the circuit board being configured with a negative power supply and a signal electrode; and
[0009] The housing is electrically connected to the circuit board and to the conductive mechanism, and the housing is provided with a positive power supply terminal;
[0010] Wherein, along the first direction of the control box, the cross-sectional area of the housing is larger than the cross-sectional area of the circuit board.
[0011] In this control box, the power supply and circuit board are electrically connected to a conduction mechanism, and then the conduction mechanism and circuit board are electrically connected to the housing. Because the circuit board is equipped with a negative power supply and signal electrode, and the housing is equipped with a positive power supply electrode, the current output from the power supply can be quickly output to the circuit board through the conduction mechanism during operation, and finally output to external electrical devices through the circuit board. The current then flows back to the power supply through the housing. Compared to traditional technologies, this solution uses a conduction mechanism to replace part of the copper wires in the circuit board for current conduction. The conduction mechanism has a large cross-sectional area, thus having a stronger current-carrying capacity and effectively meeting the output requirements of large currents (such as 40A~50A). This design is necessary and reduces the number of copper wires in the circuit board, thereby effectively reducing wiring difficulty and simplifying the circuit board layout design. It also effectively solves the problem of copper wires easily breaking and failing in confined spaces, causing short circuits and fires. Furthermore, the conduction mechanism located on one side of the circuit board acts as a fast transmission channel, quickly transferring current to the circuit board, effectively solving the power loss and attenuation problems caused by excessively long wiring paths within the board, thus ensuring performance. Moreover, because the cross-sectional area of the housing is larger than that of the circuit board, the circuit board and the conduction mechanism work together for high-current conduction, while the housing can independently conduct high-current loads, perfectly meeting the needs of high-current load carrying.
[0012] The technical solution of this application will be further described below:
[0013] In one embodiment, the conducting mechanism includes a positive copper busbar, a negative copper busbar, and a connecting conductor; the positive copper busbar is electrically connected to the connecting conductor and the positive terminal of the power supply.
[0014] The circuit board is arranged on the side of the connecting conductor away from the positive copper busbar, and the circuit board is electrically connected to the connecting conductor;
[0015] The negative copper busbar is electrically connected to the housing and the negative terminal of the power supply.
[0016] In one embodiment, the control box further includes a first connector, wherein the end of the positive copper busbar away from the power source is connected to the connecting conductor through the first connector, so that the positive copper busbar and the connecting conductor are electrically connected.
[0017] In one embodiment, the control box further includes a second connector, through which the connecting conductor is connected to the circuit board to make the connecting conductor electrically conductive with the circuit board.
[0018] In one embodiment, the second connector is a first threaded component, the circuit board is provided with a first connecting post protruding toward the connecting conductor, the first connecting post is provided with a first threaded hole, and the first threaded component passes through the connecting conductor and is screwed into the first threaded hole.
[0019] In one embodiment, multiple second connectors and multiple first connecting posts are provided, and the second connectors and the first connecting posts are assembled one-to-one to form a group of first connecting units, and the multiple first connecting units are arranged at intervals along the second direction of the control box.
[0020] In one embodiment, the control box further includes a third connector, through which the circuit board is mounted on the housing so that the circuit board and the housing are electrically connected.
[0021] In one embodiment, the third connector is a second threaded component, the housing is provided with a second connecting post protruding toward the circuit board, the second connecting post is provided with a second threaded hole, and the second threaded component passes through the circuit board and is screwed into the second threaded hole.
[0022] In one embodiment, the circuit board has a through hole, through which the second threaded component is inserted. The opposite sides of the circuit board are respectively provided with a first copper sheet and a second copper sheet. The first copper sheet is in contact with the thread head of the second threaded component and is electrically connected, and the second copper sheet is in contact with the second connecting post and is electrically connected.
[0023] In one embodiment, multiple third connectors and multiple second connecting posts are provided, and the third connectors and the second connecting posts are assembled one-to-one to form a group of second connecting units, and the multiple second connecting units are arranged at intervals along the second direction of the control box.
[0024] In one embodiment, the circuit board has an output terminal protruding from the surface of the housing, the housing has a through hole, and the output terminal passes through the through hole and is exposed on the outer surface of the housing.
[0025] A second aspect of this application also provides a display screen comprising:
[0026] Multiple light strip assemblies, wherein the multiple light strip assemblies are arranged side by side at intervals along a preset direction; and
[0027] The control box described in any of the above embodiments is electrically connected to the light strip assembly via the output terminals of the circuit board. Attached Figure Description
[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.
[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of the control box according to an embodiment of this application.
[0031] Figure 2 This is a schematic diagram of the current transmission principle of the control box.
[0032] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0033] Figure 4 This is a schematic diagram of the structure of a display screen according to one embodiment.
[0034] Explanation of reference numerals in the attached figures:
[0035] 100. Control box; 10. Power supply; 11. Positive copper busbar; 12. Negative copper busbar; 10a. Conducting mechanism; 20. Connecting conductor; 30. Circuit board; 31. First connecting post; 32. Through hole; 33. First copper foil; 34. Second copper foil; 35. Output terminal; 40. Housing; 41. Second connecting post; 42. Through hole; 50. Second connector; 60. Third connector; 70. First connector; 80. First connecting unit; 90. Second connecting unit; 200. Display screen; 210. LED strip assembly. Detailed Implementation
[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0037] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0038] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0040] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0041] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0042] The display area of a single display unit in a grating screen is usually quite large, for example, the size of a single display unit is about 1000mm*1500mm. Moreover, in order to ensure the display effect, the display brightness of a single display unit is required to be around 8000 nits to 10000 nits. At this time, the power supply output current needs to reach at least 30A to 40A to provide this brightness requirement. However, the copper plating thickness of traditional circuit boards is only 5um to 15um, which cannot carry such a large current. In order to solve this problem, it is usually necessary to use a single thick copper wire or multiple strands of thin copper wires to make conductors. However, this not only increases the difficulty of wiring and the layout design of the circuit board, but also the copper wire is prone to breakage and failure when bent in a narrow space, causing safety hazards such as short circuits and fires. Furthermore, the excessively long wiring path inside the board will also cause power loss and attenuation problems, affecting the performance of the grating screen.
[0043] To address the aforementioned issues, this solution employs a positive copper busbar 11, a negative copper busbar 12, and a connecting conductor 20 as the connection medium between the power supply 10 and the circuit board 30. By leveraging the high current carrying capacity of the copper busbar and the efficient current conduction capability of the connecting conductor 20, the power supply 10 and the circuit board 30 can be effectively interconnected, thus resolving the aforementioned technical problems.
[0044] See Figure 1 This application illustrates a control box 100 according to one embodiment, which includes a power supply 10, a conduction mechanism 10a, a circuit board 30, and a housing 40. (In conjunction with...) Figure 2 As can be seen, the conduction mechanism 10a is electrically connected to the power supply 10; the circuit board 30 is electrically connected to the conduction mechanism 10a, and the circuit board 30 is equipped with a negative power supply and a signal electrode; the housing 40 is electrically connected to the circuit board 30, and the housing 40 is electrically connected to the conduction mechanism 10a, and the housing 40 is equipped with a positive power supply electrode.
[0045] It is necessary to note that, in order to avoid electric shock accidents caused by leakage in the housing 40, the housing 40 should be equipped with grounding structure and other anti-electric shock mechanisms in actual use.
[0046] In this case, along a first direction of the control box 100, the cross-sectional area of the housing 40 is larger than the cross-sectional area of the circuit board 30. For example, the first direction specifically is... Figure 1 and Figure 2 The direction of arrow S1 in the diagram.
[0047] The function of power supply 10 is to output operating current to meet the power requirements of electrical devices. Optionally, power supply 10 can be any mature type of power supply equipment in the prior art, and can be flexibly selected according to actual needs; no specific limitation is made here.
[0048] In the control box 100 of this solution, the power supply 10 and the circuit board 30 are electrically connected to the conduction mechanism 10a, and then the conduction mechanism 10a and the circuit board 30 are electrically connected to the housing 40. Based on this, since the circuit board 30 is equipped with a negative power supply and a signal electrode, and the housing 40 is equipped with a positive power supply electrode, during operation, the current output from the power supply 10 can be quickly output to the circuit board 30 through the conduction mechanism 10a, and finally output to the external electrical device through the circuit board 30. Afterwards, the current flows back to the power supply 10 through the housing 40. Compared with traditional technology, this solution uses the conduction mechanism 10a to replace part of the copper wire in the circuit board 30 for current conduction. The conduction mechanism 10a has a large cross-sectional area, thus having a stronger current-carrying capacity and effectively meeting the requirements of large currents (such as 40A). The design meets the output requirement of ~50A current and reduces the number of copper wires in the circuit board 30, thereby reducing the wiring difficulty and simplifying the layout design of the circuit board 30. It also effectively solves the problem of copper wires easily breaking and failing in narrow spaces, causing short circuits and fires. Furthermore, the conduction mechanism 10a located on one side of the circuit board 30 acts as a fast transmission channel, quickly transmitting current to the circuit board 30, effectively solving the power loss and attenuation problems caused by excessively long wiring paths within the board, thus ensuring performance. Moreover, since the cross-sectional area of the housing 40 is larger than that of the circuit board 30, the circuit board 30 and the conduction mechanism 10a work together for high-current conduction, while the housing 40 can independently conduct high-current loads, effectively meeting the needs of high-current load carrying.
[0049] For example, the technical solution of this application can reduce the power loss and attenuation of the circuit board by 5% to 8%.
[0050] More specifically, the conductive mechanism 10a in this application includes a positive copper busbar 11, a negative copper busbar 12, and a connecting conductor 20; the positive copper busbar 11 is electrically connected to the connecting conductor 20 and the positive terminal of the power supply 10; the circuit board 30 is arranged on the side of the connecting conductor 20 away from the positive copper busbar 11, and the circuit board 30 is electrically connected to the connecting conductor 20; the negative copper busbar 12 is electrically connected to the housing 40 and the negative terminal of the power supply 10.
[0051] Optionally, the circuit board 30 can be, but is not limited to, a signal distribution board. It should be noted that the connecting conductor 20 can be a copper busbar, in which case the copper busbar is set as the positive terminal; the connection point between the circuit board 30 and the housing 40 is set as the negative terminal, thereby constructing a current loop to realize the transmission of current and control signals. The path of the current loop can be briefly described as follows: current flows out from the positive terminal of the power supply 10, through the positive copper busbar 11, the connecting conductor 20, and the circuit board 30 into the external electrical device, then flows back from the electrical device to the circuit board 30, then through the housing 40 and the negative copper busbar 12, and finally flows back to the power supply 10.
[0052] It is easy to understand that the housing 40 should be made of a material capable of conducting electric current, such as a metal. Specifically, in this application, the housing 40 can be made of aluminum, which has the ability to conduct electric current, and is also lightweight and inexpensive to use.
[0053] Compared to traditional technologies, this solution uses positive copper busbar 11, negative copper busbar 12, and connecting conductor 20 to replace some of the copper wires in the circuit board 30. The positive copper busbar 11, negative copper busbar 12, and connecting conductor 20 have a larger cross-sectional area, thus having a stronger current carrying capacity, which can effectively meet the output needs of large currents (such as 40A~50A). Furthermore, replacing traditional copper wires with positive copper busbar 11, negative copper busbar 12, and connecting conductor 20 is equivalent to saving some wiring work, which can effectively reduce the wiring difficulty and thus reduce the layout design difficulty of the circuit board 30. In addition, it also effectively solves the problem that copper wires are prone to breakage and failure when bent in the narrow space of the circuit board 30, causing safety hazards such as short circuits and fires.
[0054] In one embodiment, the control box 100 further includes a first connector 70, through which the end of the positive copper busbar 11 away from the power supply 10 is connected to the connecting conductor 20, so that the positive copper busbar 11 and the connecting conductor 20 are electrically connected. Therefore, the first connector 70 not only connects and fixes the positive copper busbar 11 and the connecting conductor 20, but also enables electrical connection between the positive copper busbar 11 and the connecting conductor 20, so as to conduct current between the positive copper busbar 11 and the connecting conductor 20.
[0055] For example, the first connector 70 uses a first threaded component, which can be a screw, bolt, or similar device. The positive copper busbar 11 is secured to the connecting conductor 20 using the first threaded component, resulting in a simple installation and high connection strength.
[0056] Of course, in other optional embodiments, the positive copper busbar 11 can also be installed and fixed to the connecting conductor 20 by at least one of the following methods: snap-fit, adhesive, magnetic connection, riveting, etc., and can be flexibly selected as needed.
[0057] Similarly, the connection method between the negative copper busbar 12 and the housing 40 can be understood and applied in the same way as the connection between the positive copper busbar 11 and the connecting conductor 20, and will not be elaborated here.
[0058] In another embodiment, the control box 100 further includes a second connector 50, through which the connecting conductor 20 is connected to the circuit board 30, so that the connecting conductor 20 and the circuit board 30 are electrically connected. Therefore, the second connector 50 can be used to assemble and fix the connecting conductor 20 and the circuit board 30, and to achieve electrical connection between the connecting conductor 20 and the circuit board 30, so that current can be conducted between the connecting conductor 20 and the circuit board 30.
[0059] More specifically, based on the above embodiments, the second connector 50 is a second threaded component, which can be a bolt, screw, etc. The circuit board 30 has a first connecting post 31 protruding towards the connecting conductor 20, and the first connecting post 31 has a first threaded hole. The second threaded component passes through the connecting conductor 20 and is screwed into the first threaded hole. During installation, the second threaded component is aligned and screwed into the first threaded hole, thereby locking and fixing the connecting conductor 20 to the circuit board 30. This threaded connection method is convenient for installation and disassembly, has good connection reliability, and is beneficial for production, processing, and subsequent maintenance.
[0060] After installation, the current conducted from the positive copper busbar 11 to the connecting conductor 20 is first conducted to the second threaded component, and then from the second threaded component to the first connecting post 31, and then through the first connecting post 31 to the circuit board 30. Compared with the traditional copper wire with a long wiring length, the current conduction path is short, which helps to reduce current loss and attenuation.
[0061] For example, the first connecting post 31 can be, but is not limited to, a copper post.
[0062] Furthermore, based on the above embodiments, multiple second connectors 50 and first connecting posts 31 are provided, and the second connectors 50 and the first connecting posts 31 are assembled one-to-one to form a group of first connecting units 80, and multiple first connecting units 80 are arranged at intervals along the second direction of the control box 100.
[0063] For example, the second direction specifically refers to the length direction of the control box 100, that is... Figure 1 and Figure 2 Arrow S2 points in the diagram. Furthermore, the length direction of the control box 100 is consistent with the length direction of the connecting conductor 20 and the length direction of the circuit board 30.
[0064] That is, by assembling the connecting conductor 20 and the circuit board 30 through multiple sets of first connecting units 80, and arranging the multiple sets of first connecting units 80 at intervals along the second direction S2, on the one hand, the connecting conductor 20 and the circuit board 30 can be provided with multi-point installation and fixation, forming multi-point support and positioning along the second direction S2, so as to ensure that the assembly of the connecting conductor 20 and the circuit board 30 with a certain length is more stable and reliable; on the other hand, the multiple sets of first connecting units 80 form a current diversion effect, forming multiple transmission channels, which can enable the current to be conducted from the connecting conductor 20 to the circuit board 30 more quickly, thereby improving the current conduction efficiency.
[0065] It should be noted that the spacing between two adjacent first connection units 80 and the number of first connection units 80 can be flexibly determined by the magnitude of the current to be conducted and the length of the connecting conductor 20 and the circuit board 30.
[0066] Furthermore, when the connecting conductor 20 is a rectangular copper busbar, the width and thickness of the connecting conductor 20 can be calculated based on the conductivity of copper to set appropriate values to meet the required current carrying capacity. The current carrying capacity of the rectangular copper busbar can be calculated using the formula: Current carrying capacity = Width × (Thickness + 8.5) A; for example, for a rectangular copper busbar with a width of 100 mm and a thickness of 8 mm, its current carrying capacity = 100 × (8 + 8.5) = 1650 A.
[0067] In another embodiment, the control box 100 further includes a third connector 60, through which the circuit board 30 is mounted on the housing 40, so that the circuit board 30 and the housing 40 are in contact and electrically connected. Therefore, the third connector 60 can be used to assemble and fix the circuit board 30 and the housing 40, and to realize the electrical connection between the circuit board 30 and the housing 40, so that current can be conducted between the circuit board 30 and the housing 40.
[0068] More specifically, based on the above embodiments, the third connector 60 adopts a third threaded component. The housing 40 is provided with a second connecting post 41 protruding towards the circuit board 30. The second connecting post 41 is provided with a second threaded hole. The third threaded component passes through the circuit board 30 and is screwed into the second threaded hole. During installation, the third threaded component is aligned and screwed into the second threaded hole, thereby locking and fixing the circuit board 30 and the housing 40. This threaded connection method is convenient for installation and disassembly, has good connection reliability, and is beneficial for production, processing, and subsequent maintenance.
[0069] After installation, the current flowing back to the circuit board 30 is first conducted to the third threaded component, and then from the third threaded component to the second connecting post 41, and then through the second connecting post 41 to the housing 40, and finally back to the power supply 10 through the negative copper busbar 12. Compared with the traditional copper wire with a long wiring length, the current conduction path is short, which helps to reduce current loss and attenuation.
[0070] For example, the second connecting post 41 is made of copper.
[0071] In one embodiment, such as Figure 3 As shown, the circuit board 30 has a through hole 32, through which a second threaded component passes. A first copper foil 33 and a second copper foil 34 are respectively provided on opposite sides of the circuit board 30. The first copper foil 33 is in contact with the threaded end of the second threaded component, and the second copper foil 34 is in contact with the second connecting post 41, and is also in contact with the second connecting post 41. The first copper foil 33 and the second copper foil 34 provide good conductivity, allowing current to be conducted more quickly between the second connecting post 41, the second threaded component, and the circuit board 30. Furthermore, compared to the through hole 32, the appropriately larger area of the first copper foil 33 and the second copper foil 34 also helps with heat dissipation, improving the reliability and safety of the control box 100 during long-term continuous operation.
[0072] Furthermore, based on the above embodiments, multiple third connectors 60 and second connecting posts 41 are provided, and the third connectors 60 and the second connecting posts 41 are assembled one-to-one to form a group of second connecting units 90, and multiple second connecting units 90 are arranged at intervals along the second direction of the control box 100.
[0073] The second direction S2 specifically refers to the length direction of the control box 100, and the length direction of the control box 100 is consistent with the length direction of the circuit board 30 and the length direction of the housing 40. That is, the circuit board 30 and the housing 40 are assembled by multiple sets of second connecting units 90, and the multiple sets of second connecting units 90 are arranged at intervals along the second direction S2. On the one hand, it can provide multi-point mounting and fixing for the circuit board 30 and the housing 40, forming multi-point support and positioning along the length direction, so as to ensure that the assembly of the circuit board 30 and the housing 40 with a certain length is more stable and reliable; on the other hand, the multiple sets of second connecting units 90 form a current diversion effect, forming multiple transmission channels, which can enable the current to be conducted from the circuit board 30 to the housing 40 more quickly, improving the current return conduction efficiency.
[0074] Furthermore, based on any of the above embodiments, the circuit board 30 has an output terminal 35 protruding from the surface of the housing 40. The housing 40 has a through hole 42, through which the output terminal 35 passes and is exposed on the outer surface of the housing 40. This allows the output terminal 35 to be easily connected to electrical devices to supply current to the devices and meet their power requirements.
[0075] For example, the electrical device may be, but is not limited to, the light strip assembly 210.
[0076] More specifically, there are two output terminals 35 and two vias 42, which are assembled in a one-to-one correspondence. One output terminal 35 is the positive terminal and the other output terminal 35 is the negative terminal.
[0077] like Figure 4 As shown above, this application also provides a display screen 200, which includes a plurality of light strip assemblies 210 and a control box 100 as described in any of the above embodiments. The plurality of light strip assemblies 210 are arranged side by side at intervals along a preset direction. The control box 100 is electrically connected to the light strip assemblies 210 through the output terminal 35 of the circuit board 30.
[0078] When in operation, the LED strip assembly 210 receives current and lights up, enabling the display screen 200 to display images. More specifically, by setting commands to make different LED strip assemblies 210 light up or turn off in coordination, the display screen 200 can display different images.
[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A control box, characterized in that, include: power supply; A conduction mechanism, which is electrically connected to the power supply; A circuit board, which is electrically connected to the conductive mechanism, and the circuit board is equipped with a negative power supply and a signal electrode; as well as The housing is electrically connected to the circuit board and to the conductive mechanism, and the housing is provided with a positive power supply terminal; Wherein, along the first direction of the control box, the cross-sectional area of the housing is larger than the cross-sectional area of the circuit board.
2. The control box of claim 1, wherein, The conduction mechanism includes a positive copper busbar, a negative copper busbar, and a connecting conductor; the positive copper busbar is electrically connected to the connecting conductor and the positive terminal of the power supply. The circuit board is arranged on the side of the connecting conductor away from the positive copper busbar, and the circuit board is electrically connected to the connecting conductor; The negative copper busbar is electrically connected to the housing and the negative terminal of the power supply.
3. The control box of claim 2, wherein, The control box also includes a first connector, and the end of the positive copper busbar away from the power source is connected to the connecting conductor through the first connector, so that the positive copper busbar and the connecting conductor are in contact and electrically connected.
4. The control box of claim 2, wherein, The control box also includes a second connector, through which the connecting conductor is connected to the circuit board, so that the connecting conductor and the circuit board are electrically connected.
5. The control box of claim 4, wherein, The second connector is a first threaded component. The circuit board is provided with a first connecting post protruding toward the connecting conductor. The first connecting post is provided with a first threaded hole. The first threaded component passes through the connecting conductor and is screwed into the first threaded hole.
6. The control box of claim 5, wherein, Both the second connector and the first connecting post are provided in multiple quantities, and the second connector and the first connecting post are assembled one-to-one to form a group of first connecting units. The multiple first connecting units are arranged at intervals along the second direction of the control box.
7. The control box according to claim 1, characterized in that, The control box also includes a third connector, through which the circuit board is mounted on the housing, so that the circuit board and the housing are in contact and electrically connected.
8. The control box of claim 7, wherein, The third connector adopts a second threaded component. The housing is provided with a second connecting post protruding towards the circuit board. The second connecting post is provided with a second threaded hole. The second threaded component passes through the circuit board and is screwed into the second threaded hole.
9. The control box of claim 8, wherein, The circuit board has a through hole, and the second threaded component passes through the through hole. The opposite sides of the circuit board are respectively provided with a first copper sheet and a second copper sheet. The first copper sheet is in contact with the thread head of the second threaded component and is electrically conductive. The second copper sheet is in contact with the second connecting post and is electrically conductive.
10. The control box of claim 8, wherein, Multiple third connectors and multiple second connecting posts are provided, and the third connectors and the second connecting posts are assembled one-to-one to form a group of second connecting units, and the multiple second connecting units are arranged at intervals along the second direction of the control box.
11. The control box of claim 1, wherein, The circuit board has an output terminal protruding from the surface of the housing. The housing has a through hole, through which the output terminal passes and is exposed on the outer surface of the housing.
12. A display screen, characterized by include: Multiple light strip assemblies are arranged side by side at intervals along a preset direction; as well as The control box of any one of claims 1 to 11, electrically connected with the light bar assembly through an output terminal of the circuit board.