Circuit breaker and its signal transceiver circuit

Abstract

This utility model discloses a circuit breaker and its signal transceiver circuit, wherein the signal transceiver circuit includes a printed circuit board and a spring antenna; a communication module is integrated on the printed circuit board, and the spring antenna is connected to the communication module; the axis of the spring antenna is parallel to the surface of the printed circuit board. By setting the spring antenna, good communication performance and less space occupation are ensured. The axis of the spring antenna being parallel to the surface of the printed circuit board integrating the communication module can save space in the direction perpendicular to the surface of the printed circuit board, making the overall structure of the signal transceiver circuit and the circuit breaker more compact, optimizing the spatial layout of the signal transceiver circuit and the circuit breaker, and helping to reduce the size of the circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of power electronic equipment technology, and in particular to a circuit breaker and its signal transceiver circuit. Background Technology

[0002] Circuit breakers are widely used in power systems.

[0003] In the prior art, circuit breakers are equipped with communication modules and antenna modules, enabling them to transmit data and communicate wirelessly with external devices, thus enriching their functionality.

[0004] However, in the existing technology, the placement of the antenna module affects the compactness of the circuit breaker structure, resulting in a larger circuit breaker size. Utility Model Content

[0005] This invention provides a circuit breaker and its signal transceiver circuit to improve the compactness of the circuit breaker structure and reduce its size.

[0006] According to one aspect of the present invention, a signal transceiver circuit for a circuit breaker is provided, comprising: a printed circuit board and a spring antenna; a communication module is integrated on the printed circuit board, and the spring antenna is connected to the communication module; the axis of the spring antenna is parallel to the surface of the printed circuit board.

[0007] Optionally, the spring antenna includes a connecting part and a telescopic part. Along the axial direction of the spring antenna, the connecting part is located at one end of the telescopic part, and the connecting part is connected to the communication module.

[0008] Optionally, the connector is soldered to the printed circuit board.

[0009] Optionally, the spring antenna is positioned in the edge region of the printed circuit board.

[0010] Optionally, along the axis of the spring antenna, one end of the spring antenna is on the printed circuit board, and the other end of the spring antenna extends beyond the edge of the printed circuit board.

[0011] Optionally, the printed circuit board includes a first structural portion, a second structural portion, and a third structural portion, which are arranged along a first direction, intersecting the axis of the spring antenna; the first structural portion and the third structural portion are connected through the second structural portion.

[0012] Along the axial direction of the spring antenna, the first structural part and the third structural part protrude from the second structural part; the spring antenna is disposed on the first structural part.

[0013] Optionally, the area of ​​the first structural part is smaller than the area of ​​the second structural part, and the area of ​​the first structural part is smaller than the area of ​​the third structural part.

[0014] Optionally, the communication module includes a low-voltage digital circuit, which is located in the third structural section.

[0015] According to another aspect of the present invention, a circuit breaker is provided, including the signal transceiver circuit of the circuit breaker in any embodiment of the present invention.

[0016] Optionally, along the axial direction of the spring antenna, one end of the spring antenna is connected to the communication module, and the other end is in contact with the circuit breaker housing.

[0017] The circuit breaker and its signal transceiver circuit of this utility model embodiment, by setting a spring antenna, ensures good communication performance and minimizes space occupation. The axis of the spring antenna is parallel to the surface of the printed circuit board of the integrated communication module, which can save space in the direction perpendicular to the surface of the printed circuit board, making the overall structure of the signal transceiver circuit and the circuit breaker more compact, optimizing the spatial layout of the signal transceiver circuit and the circuit breaker, and helping to reduce the size of the circuit breaker.

[0018] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the signal transceiver circuit of a circuit breaker provided in an embodiment of the present invention;

[0021] Figure 2 This is a top view of the signal transceiver circuit of the circuit breaker provided in this embodiment of the utility model. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] Figure 1 This is a schematic diagram of the signal transceiver circuit of a circuit breaker provided in an embodiment of this utility model, for reference. Figure 1 The signal transceiver circuit of the circuit breaker includes: a printed circuit board 100 and a spring antenna 200; a communication module 110 is integrated on the printed circuit board 100, and the spring antenna 200 is connected to the communication module 110; the axial direction x of the spring antenna 200 is parallel to the surface of the printed circuit board 100.

[0025] Specifically, the communication module 110 may include a communication chip and circuit elements. The communication module 110 is integrated on the printed circuit board 100 (PCB). Specifically, the integration method may involve placing the communication chip and circuit elements on the PCB. In addition to the signal transceiver circuit of this embodiment, the circuit breaker may also include a control module. The communication module 110 can communicate with the control module and can also communicate with external devices, thereby realizing communication between the circuit breaker and external devices. The communication module 110 may include a single-mode communication module 110, or a dual-mode or multi-mode communication module 110. For example, the communication module 110 may include a dual-mode communication module 110, such as a dual-mode communication module 110 for High-speed Power Line Communication (HPLC) and High-Radio Frequency (HRF). In this case, the spring antenna 200 can be connected to the HRF module, allowing data from the HRF module to be transmitted through the spring antenna 200. The specific communication process is as follows: combining HPLC and HRF to form a dual-path transmission. For example, when the circuit breaker acts as the transmitter, it transmits data simultaneously via HPLC and HRF through a signal transceiver circuit, with the HRF data being transmitted through the spring antenna 200. When the circuit breaker acts as the receiver, it selects the optimal path or merges data based on signal quality through the signal transceiver circuit.

[0026] In this embodiment of the invention, the spring antenna 200 is connected to the communication module 110, enabling the communication module 110 to transmit and receive signals via the spring antenna 200, thereby facilitating communication with the circuit breaker and external devices. The spiral structure of the spring antenna 200 effectively increases the current path, making it electrically behave like a long linear antenna while being physically very short and compact. This allows the spring antenna 200 to have good communication performance while reducing its space requirements.

[0027] The axial direction x of the spring antenna 200 can be the extension / retraction direction of the spring antenna 200. In this embodiment, the axial direction x of the spring antenna 200 is parallel to the surface of the printed circuit board 100. Specifically, the axial direction x of the spring antenna 200 can be parallel to the surface of the printed circuit board 100 to which the spring antenna 200 is connected, that is, the extension / retraction direction of the spring antenna 200 is parallel to the surface of the printed circuit board 100 to which the spring antenna 200 is connected. The printed circuit board 100 includes a front side, a back side, and a side connecting the front and back sides. The front and back sides are parallel to each other, and the area of ​​the front side is larger than the area of ​​the side side, and the area of ​​the back side is larger than the area of ​​the side side. The surface of the printed circuit board 100 where the spring antenna 200 is located can be the front side of the printed circuit board 100.

[0028] For example, if the surface of the printed circuit board 100 to which the spring antenna 200 is connected is horizontal, then the axial direction x of the spring antenna 200 is horizontal. This configuration can save space in the direction perpendicular to the surface of the printed circuit board 100, making the overall structure of the signal transceiver circuit more compact. Correspondingly, the structure of the circuit breaker will be more compact. Optimizing the spatial layout of the signal transceiver circuit and the circuit breaker helps to reduce the size of the circuit breaker.

[0029] The signal transceiver circuit of the circuit breaker in this embodiment includes a printed circuit board and a spring antenna. A communication module is integrated on the printed circuit board, and the spring antenna is connected to the communication module. The axis of the spring antenna is parallel to the surface of the printed circuit board. By using a spring antenna, good communication performance and minimal space occupation are ensured. The parallelism of the spring antenna's axis to the surface of the printed circuit board integrating the communication module saves space perpendicular to the printed circuit board surface, making the overall structure of the signal transceiver circuit and the circuit breaker more compact. This optimizes the spatial layout of the signal transceiver circuit and the circuit breaker, which helps to reduce the size of the circuit breaker.

[0030] Figure 2 This is a top view of the signal transceiver circuit of the circuit breaker provided in this embodiment of the utility model, for reference. Figure 1 and Figure 2 Optionally, the spring antenna 200 includes a connecting part 210 and a retractable part 220. Along the axial direction x of the spring antenna 200, the connecting part 210 is located at one end of the retractable part 220, and the connecting part 210 is connected to the communication module 110.

[0031] Specifically, the retractable part 220 can be a spiral structure, capable of axial expansion and contraction, and deformable. The connecting part 210 can be a straight line, a broken line, or a non-spiral curve, facilitating connection between the connecting part 210 and the communication module 110. The connection between the spring antenna 200 and the communication module 110 is achieved through the connection of the connecting part 210 and the communication module 110.

[0032] In some embodiments, the connector 210 is soldered to the printed circuit board 100. This soldering connection method makes the connection between the spring antenna 200 and the printed circuit board 100 more secure, and provides better stability compared to plug-in or snap-on antennas. When the circuit breaker is subjected to external forces such as vibration or impact, the spring antenna 200 is less likely to loosen or fall off, ensuring the stability of the circuit breaker's wireless communication function in complex environments. Furthermore, it allows for high integration of the signal transceiver circuitry, making it easier to plan and layout the spring antenna 200 as a standard functional module.

[0033] Continue to refer to Figure 1 and Figure 2 The spring antenna 200 is disposed in the edge area of ​​the printed circuit board 100.

[0034] Specifically, the printed circuit board 100 includes a central region and an edge region, wherein the distance between the edge region and the side of the printed circuit board 100 is greater than the distance between the central region and the side of the printed circuit board 100. In some embodiments, the edge region surrounds the central region. By positioning the spring antenna 200 in the edge region of the printed circuit board 100, away from the densely packed chips, capacitors, and other electronic components in the central region of the circuit board, electromagnetic interference generated by these components on antenna signal transmission and reception can be effectively reduced, resulting in a cleaner wireless communication signal, improved communication stability and reliability, and reduced signal packet loss. Furthermore, in the edge region, the area around the spring antenna 200 is relatively open, which reduces the obstruction and reflection of the antenna signal radiation direction by other conductors on the printed circuit board 100, allowing the spring antenna 200 to radiate signals more fully into the external space, thus helping to improve signal coverage and transmission distance, and enabling more stable data transmission to a more distant receiving end.

[0035] Continue to refer to Figure 1 and Figure 2 In some embodiments, along the axial direction x of the spring antenna 200, one end of the spring antenna 200 is on the printed circuit board 100, and the other end extends beyond the edge of the printed circuit board 100. This allows one end of the spring antenna 200 on the printed circuit board 100 to be electrically connected to the printed circuit board 100, ensuring reliable connection between the spring antenna 200 and the printed circuit board 100. On the other hand, the fact that the spring antenna 200 extends beyond the edge of the printed circuit board 100 reduces the surface area occupied by the spring antenna 200 on the printed circuit board 100, allowing for more space on the printed circuit board 100 to arrange circuit components; it also allows for a greater distance between the spring antenna 200 and components on the printed circuit board 100, further reducing signal transmission interference.

[0036] Continue to refer to Figure 1 and Figure 2Optionally, the printed circuit board 100 includes a first structural portion 101, a second structural portion 102, and a third structural portion 103. The first structural portion 101, the second structural portion 102, and the third structural portion 103 are arranged along a first direction y, which intersects the axial direction x of the spring antenna 200. The first structural portion 101 and the third structural portion 103 are connected through the second structural portion 102. Along the axial direction x of the spring antenna 200, the first structural portion 101 and the third structural portion 103 protrude from the second structural portion 102. The spring antenna 200 is disposed on the first structural portion 101.

[0037] In some embodiments, the first structural portion 101, the second structural portion 102, and the third structural portion 103 may be an integral structure. Along the axial direction x of the spring antenna 200, the first structural portion 101 and the third structural portion 103 protrude from the second structural portion 102, and may include, at least on one side along the axial direction x of the spring antenna 200, the first structural portion 101 and the third structural portion 103 protrude from the third structural portion 103. Figure 2 Taking the illustrated case as an example, the axial direction x of the spring antenna 200 is in the left-right direction. On the right side, the first structural part 101 and the third structural part 103 protrude from the second structural part 102. In this way, a notch is formed in the printed circuit board 100 on the right side of the second structural part 102, which is equivalent to forming a hollow area. For example, along the first direction y, a notch is formed in the printed circuit board 100 on one side of the spring antenna 200. In this way, signal obstruction can be reduced, and interference with the signal transmission of the spring antenna 200 can be reduced.

[0038] Based on the above technical solution, optionally, the area of ​​the first structural part 101 is smaller than the area of ​​the second structural part 102, and the area of ​​the first structural part 101 is smaller than the area of ​​the third structural part 103. This arrangement allows the area of ​​the first structural part 101, where the spring antenna 200 is arranged, to be smaller, while the second structural part 102 and the third structural part 103 have larger areas. This allows for the arrangement of more circuit components within the limited space of the printed circuit board 100, making the structure of the signal transceiver circuit more compact. This helps to reduce the area of ​​the printed circuit board 100 and further reduce the size of the signal transceiver circuit and the circuit breaker.

[0039] refer to Figure 2 In some embodiments, the communication module 110 includes a low-voltage digital circuit 111, which is disposed in the third structural part 103.

[0040] The low-voltage digital circuit 111 includes, but is not limited to, logic circuits, memory, and interface circuits. Specifically, the low-voltage digital circuit 111 requires a relatively large area. Placing it in the third structural section 103 allows for a more rational layout of the printed circuit board 100. Furthermore, placing the low-voltage digital circuit 111 in the third structural section 103 keeps it further away from the spring antenna 200, thereby reducing mutual interference between them, ensuring the normal operation of the low-voltage digital circuit 111, and maintaining the signal transmission performance of the spring antenna 200.

[0041] Continue to refer to Figure 2 In some embodiments, the second structural part 102 may provide discrete components 112 of the communication module 110 and discrete component connection points 113.

[0042] This utility model embodiment also provides a circuit breaker, which includes the signal transceiver circuit of the circuit breaker in any embodiment of this utility model, and has the beneficial effects of the signal transceiver circuit of the circuit breaker in any embodiment of this utility model, which will not be described in detail here.

[0043] Optionally, in this circuit breaker, along the axial direction of the spring antenna, one end of the spring antenna is connected to the communication module, and the other end contacts the circuit breaker housing. This allows the spring antenna to press against the circuit breaker housing, making the printed circuit board more stable within the circuit breaker and improving the reliability of the circuit breaker structure.

[0044] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0045] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A signal transceiver circuit for a circuit breaker, characterized in that, include: A printed circuit board (100) and a spring antenna (200); a communication module (110) is integrated on the printed circuit board (100), and the spring antenna (200) is connected to the communication module (110); the axial direction (x) of the spring antenna (200) is parallel to the surface of the printed circuit board (100).

2. The signal transceiver circuit of the circuit breaker according to claim 1, characterized in that, The spring antenna (200) includes a connecting part (210) and a retractable part (220). Along the axial direction (x) of the spring antenna (200), the connecting part (210) is located at one end of the retractable part (220), and the connecting part (210) is connected to the communication module (110).

3. The signal transceiver circuit of the circuit breaker according to claim 2, characterized in that, The connecting part (210) is soldered to the printed circuit board (100).

4. The signal transceiver circuit according to claim 1, characterized in that, The spring antenna (200) is disposed in the edge region of the printed circuit board (100).

5. The signal transceiver circuit according to claim 4, characterized in that, Along the axial direction (x) of the spring antenna (200), one end of the spring antenna (200) is on the printed circuit board (100), and the other end of the spring antenna (200) extends beyond the edge of the printed circuit board (100).

6. The signal transceiver circuit according to claim 1, characterized in that, The printed circuit board (100) includes a first structural portion (101), a second structural portion (102), and a third structural portion (103). The first structural portion (101), the second structural portion (102), and the third structural portion (103) are arranged along a first direction (y), which intersects the axial direction (x) of the spring antenna (200). The first structural portion (101) and the third structural portion (103) are connected through the second structural portion (102). Along the axial direction (x) of the spring antenna (200), the first structural portion (101) and the third structural portion (103) protrude from the second structural portion (102); the spring antenna (200) is disposed on the first structural portion (101).

7. The signal transceiver circuit according to claim 6, characterized in that, The area of ​​the first structural part (101) is smaller than the area of ​​the second structural part (102), and the area of ​​the first structural part (101) is smaller than the area of ​​the third structural part (103).

8. The signal transceiver circuit of the circuit breaker according to claim 6, characterized in that, The communication module (110) includes a low-voltage digital circuit (111), which is disposed in the third structural part (103).

9. A circuit breaker, characterized in that, Includes the signal transceiver circuit of the circuit breaker as described in any one of claims 1-8.

10. The circuit breaker according to claim 9, characterized in that, Along the axial direction (x) of the spring antenna (200), one end of the spring antenna (200) is connected to the communication module (110), and the other end is in contact with the housing of the circuit breaker.

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