Connecting element and radio frequency power matching device

Abstract

Connecting element for a radio frequency power matching device, characterized in that the connecting element is arranged in a plate-like form, wherein the connecting element comprises an input connecting plate part and an output connecting plate part located at ends, wherein the output connecting plate part is used for connection to an external output circuit, and wherein the input connecting plate part is used for connection to a first load adjusting part in order to adjust an impedance matching between a power supply and the output circuit by means of the first load adjusting part; wherein the connecting element further comprises an intermediate plate part between the input connecting plate part and the output connecting plate part, wherein the intermediate plate part is at least partially arranged in a loop shape.

Description

TECHNICAL AREA

[0001] The utility model relates to the technical field of power matching devices, in particular to a connecting element and a radio frequency power matching device. STATE OF THE ART

[0002] A radio frequency power matching device (RF power matcher), also called a radio frequency load matching device (RF load matcher) or radio frequency matching network, is a device used to match the impedance between a radio frequency power supply and a load. Its main function is to ensure that the radio frequency power supply can efficiently transfer energy to the load to guarantee maximum power transfer and system efficiency. The radio frequency power matching device primarily comprises an inductor and a capacitor. The inductor and capacitor in a typical radio frequency power matching device generally have a self-adjusting function, allowing the impedance to be matched between the power supply and the load by adjusting their respective inductance and capacitance.However, in actual use of the radio frequency impedance matching device, there are situations where the impedance matching cannot meet the actual requirements due to insufficient inductance. At this point, it is often necessary to add new capacitors or inductors in series with the original electrical component configuration to increase the impedance matching range of the entire radio frequency impedance matching device. However, this method is difficult to implement when mounting space is limited.Therefore, this utility model proposes a connecting element to improve the radio frequency power matching device and is used to improve the impedance adjustment range of the radio frequency power matching device in a limited mounting space to solve the problem that the impedance matching cannot meet the actual need due to insufficient inductance during the use of the existing radio frequency power matching device. CONTENTS OF THE PRESENT USE SAMPLE

[0003] The main purpose of this utility model is to provide a connecting element and a radio frequency power matching device, and it aims to provide a connecting element to improve the radio frequency power matching device in order to improve the impedance adjustment range of the radio frequency power matching device in a limited mounting space in order to solve the problem that the impedance matching cannot meet the actual need due to insufficient inductance during the use of the existing radio frequency power matching device.

[0004] To achieve the above-mentioned purpose, the connecting element proposed in this utility model is used in a radio frequency power matching device, wherein the connecting element is arranged in a plate-like form, comprising an input connecting plate part and an output connecting plate part located at ends, wherein the output connecting plate part is used for connection to an external output circuit, and wherein the input connecting plate part is used for connection to a first load adjusting part in order to adjust an impedance match between a power supply and the output circuit by means of the first load adjusting part; wherein the connecting element further comprises an intermediate plate part between the input connecting plate part and the output connecting plate part, wherein the intermediate plate part is at least partially arranged in a loop shape.

[0005] Preferably, the intermediate plate part is arranged in a loop around the first direction, wherein the input connecting plate part is arranged vertically relative to the reference plane and comprises a first plate part extending along a first direction and a second plate part extending along a second direction, wherein the second plate part is used for connection with the first load adjusting part, wherein the first direction and the second direction are two directions perpendicular to each other in the reference plane.

[0006] Preferably, the second plate part is provided with a connecting through-hole, wherein a first screw connector is inserted through the connecting through-hole for connection with the first load-adjusting part.

[0007] Preferably, the intermediate plate part comprises a first loop-shaped flat plate connected to the first plate part and extending along the second direction, a first loop-shaped vertical plate connected to the end of the first loop-shaped flat plate, a second loop-shaped flat plate connected to the first loop-shaped vertical plate, and a second loop-shaped vertical plate connected to the second loop-shaped flat plate, wherein the first loop-shaped flat plate and the second loop-shaped flat plate are arranged oppositely in the thickness direction of the intermediate plate part; wherein the starting connecting plate part is connected to the second loop-shaped vertical plate.

[0008] Preferably, a second screw connector is provided on the second loop-shaped flat plate, wherein the second screw connector is used to connect to the second load adjusting part in order to adjust the impedance matching between the power supply and the output circuit via the second load adjusting part.

[0009] Preferably, the output connecting plate part is arranged opposite the second loop-shaped flat plate and is located on a side facing the first loop-shaped flat plate and away from the second loop-shaped flat plate.

[0010] Preferably, the output connecting plate part is provided to extend relative to the reference plane, with the output connecting plate part extending along the second direction.

[0011] Preferably, a slot is provided in the output connection plate part through which the third screw connector can be guided for connection to the external output circuit.

[0012] Preferably, the connecting element is made of copper in one piece and its outer circumference is covered with a silver plating layer.

[0013] The utility model also proposes a radio frequency power matching device, wherein the radio frequency power matching device comprises a connecting element as described above, and wherein the radio frequency power matching device further comprises the following: an inductor, wherein one connecting wire of the inductor is firmly connected to the second screw connector; and a capacitor, wherein one connecting end of the capacitor is firmly connected to the first screw connector.

[0014] In the technical solution of the present utility model, the L-shaped copper row between the inductor and the capacitor in the conventional radio frequency power matching device is improved to a loop-shaped connection structure.In actual application, after connecting the inductor and capacitor, the loop-shaped main body can generate a partial impedance through the electromagnetic induction phenomenon of the loop-shaped main body itself, in order to improve the impedance matching range in the radio frequency power matching device. Furthermore, the loop-shaped connecting element directly replaces the conventional L-shaped copper busbar connecting element, which allows for the direct replacement and assembly of relevant components in the traditionally limited mounting space. The above method improves the impedance matching range of the radio frequency power matching device and also avoids the need to connect associated electrical devices in series when the inductance in the conventional radio frequency power matching device is insufficient to increase its inductance.Therefore, the connecting element proposed in the utility model can effectively solve the problems encountered when using conventional radio frequency power matching devices and has good advertising value. BRIEF DESCRIPTION OF THE DRAWING

[0015] To clarify the technical solutions of the embodiments of the present utility model or in the prior art, the drawings necessary for the descriptions in embodiments or in the prior art are briefly described below. Obviously, the accompanying drawings in the following description are merely some embodiments of the present utility model, and the person skilled in the art in this field can obtain other drawings without creative effort based on the structures shown in these drawings. Fig.Figure 1 is a schematic structural perspective representation of the structure of the connecting element provided by the utility model; Fig. 2 is a top view of the connecting element in Fig. 1; Fig. Figure 3 is a side view of the connector in Fig. 1; Fig. Figure 4 is a schematic structural representation of a radio frequency power matching device, which incorporates the connecting element in Fig. 1 includes. Description of the reference symbols: Reference sign name Reference sign name 1000 Connecting element t 142 Third screw connector 1 Input connection plate part 151 First loop-shaped flat plate 12 First plate section 152 First loop-shaped vertical plate 13 Second plate section 153 Second loop-shaped flat plate 131 connecting through hole 154 Second loop-shaped vertical plate 132 First screw connector 2 Second screw connector 14 Output connection plate part 3 Inductor 141 Slotted hole 4 capacitor

[0016] The realization of the purpose, functional features and advantages of the utility model are further explained with reference to the attached drawings in combination with the exemplary embodiments. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of this utility model are described clearly and completely below with reference to the drawings in those embodiments. Obviously, the described embodiments are only some of the embodiments of this utility model, not all of them. All other embodiments that a person skilled in the art in this field could derive from the embodiments in this utility model without any creative activity are within the scope of protection of this utility model.

[0018] It should be noted that all directional terms (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are used only to explain the relative positional relationship between the various components in a specific posture (as shown in the accompanying illustration), sports conditions, or the like. If the specific posture changes, the directional term changes accordingly.

[0019] Furthermore, the descriptions relating to "first," "second," and the like in this utility model serve only a descriptive purpose and should not be understood as indicating or implying their relative importance or implicitly explaining the set of specified technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. Moreover, the technical solutions of the various embodiments may be combined, but this must be based on the knowledge of a person skilled in the art in this field. If the combination of technical solutions contradicts each other or cannot be realized, it should be assumed that the combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0020] A radio frequency power matching device (RF power matcher), also called a radio frequency load matching device (RF load matcher) or radio frequency matching network, is a device used to match the impedance between a radio frequency power supply and a load. Its main function is to ensure that the radio frequency power supply can efficiently transfer energy to the load to guarantee maximum power transfer and system efficiency. The radio frequency power matching device primarily comprises an inductor and a capacitor. The inductor and capacitor in a typical radio frequency power matching device generally have a self-adjusting function, allowing the impedance to be matched between the power supply and the load by adjusting their respective inductance and capacitance.However, in actual use of the radio frequency impedance matching device, there are situations where the impedance matching cannot meet the actual requirements due to insufficient inductance. At this point, it is often necessary to add new capacitors or inductors in series with the original electrical component configuration to increase the impedance matching range of the entire radio frequency impedance matching device. However, this method is difficult to implement when mounting space is limited.Therefore, this utility model proposes a connecting element to improve the radio frequency power matching device and is used to improve the impedance adjustment range of the radio frequency power matching device in a limited mounting space to solve the problem that the impedance matching cannot meet the actual need due to insufficient inductance during the use of the existing radio frequency power matching device.

[0021] To solve the aforementioned problem, this utility model proposes a connecting element and a radio frequency power matching device, wherein Fig. Figures 1 to 4 are schematic structural representations of an embodiment provided by the connecting element and the radio frequency power matching device of the present utility model.

[0022] With reference to Fig.Figures 1 to 4 of the present utility model propose a connecting element 1000 for connecting the inductor and capacitor in the radio frequency power matching device to the load. The conventional connecting element 1000 is an L-shaped metal connecting element that itself only performs the function of conduction and cannot generate inductance during the conduction process. When using conventional radio frequency power matching devices, the impedance value may not meet the actual application requirements due to insufficient inductance. In such cases, it is often necessary to connect corresponding inductors in series with four capacitors to increase the inductance of the entire radio frequency power matching device and thereby expand its impedance matching range. However, with this traditional method, it is difficult to implement relevant processes in confined spaces.In the present embodiment, the conventional L-shaped metal connecting element is arranged in a loop shape, so that the corresponding connecting elements can be replaced 1000 times within the original usable space.Specifically, during the use of the connecting element 1000 in the present embodiment, its input connecting plate part 1 and output connecting plate part 14 are each connected to the first load-adjusting part (the first load-adjusting part can adjust the impedance matching between the power supply and the output circuit) and the external output circuit, wherein the connecting element not only has a conductive function, but also the intermediate plate part, which is itself arranged in a loop, can generate a certain inductance after the circuit is switched on, thereby increasing the upper limit of the inductance matching of the original radio frequency power matching device and thus increasing its own impedance matching range, thereby avoiding the conventional procedure of having to connect additional inductors in series if the inductance is insufficient.

[0023] The horizontal plane is defined as the reference plane, wherein the input connection plate part 1 is arranged vertically relative to the reference plane, specifically comprising a first plate part 12 and a second plate part 13, both of which are arranged vertically.

[0024] Specifically, the second plate part 13 is provided with a connecting through hole 131, wherein a first screw connector 132 is inserted through the connecting through hole 131 for connection with the first load adjusting part.

[0025] It is conceivable that the connection between the first load-adjusting part and the second plate part 13 is not limited to the connection via the first screw connector 132 and that a conductive path between the two can also be formed by snapping and welding.

[0026] As in the Fig.As shown in Figures 1 to 3, in the present embodiment the intermediate plate part comprises a first loop-shaped flat plate 151, which is connected to the first plate part 12 and extends along the second direction, a first loop-shaped vertical plate 152, which is connected to the end of the first loop-shaped flat plate 151, a second loop-shaped flat plate 153, which is connected to the first loop-shaped vertical plate 152, and a second loop-shaped vertical plate 154, which is connected to the second loop-shaped flat plate 153, wherein the first loop-shaped flat plate 151 and the second loop-shaped flat plate 153 are arranged oppositely in the thickness direction of the intermediate plate part, wherein the output connecting plate part 14 is connected to the second loop-shaped vertical plate 154.As mentioned above, the intermediate plate section consists of several loop-shaped flat plates and several loop-shaped vertical plates connected end-to-end. However, it is conceivable that in the actual application process, the number of loops in the intermediate plate section also directly influences the actual inductance. Therefore, in the actual application process, the intermediate plate section has the aforementioned loop-shaped structure connected end-to-end, but the number of loops formed can be adjusted according to the actual requirements to meet different inductance demands.

[0027] In the present embodiment, a second screw connector 2 is provided on the second loop-shaped flat plate 153 for connection to the second load adjustment part (the second load adjustment part, like the first load adjustment part, can adjust the impedance matching between the power supply and the output circuit) in order to increase the overall resistance adjustment range of the radio frequency power matching device.

[0028] We can know that in a conventional radio frequency power matching device there is an inductance element and a capacitance element, both of which can adjust the resistance matching of the radio frequency power matching device, wherein in the above embodiments it is mentioned that the first load-adjusting part and the second load-adjusting part each comprise at least one of an inductance element and a capacitance element.

[0029] The intermediate plate part is arranged in a loop-shaped extension to the outside, and the corresponding output connecting plate part 14 is arranged opposite the second loop-shaped flat plate 153 and is located on a side facing the first loop-shaped flat plate 151 and away from the second loop-shaped flat plate 153.

[0030] The output connection plate part 14 is provided extending relative to the reference plane, wherein the output connection plate part 14 is provided extending along the second direction and has a certain installation length for connecting and fixing the external output circuit.

[0031] Specifically, the output connection plate part 14 has a slot 141 through which the third screw connector 142 can be inserted for connection to the external output circuit. During connection, the external output circuit can adjust its mounting position on the slot according to the position of its own output terminal, so that the connection between the two can be adapted to the actual situation.

[0032] Furthermore, it should be noted that the actual extension directions of the output connection plate part 14 and the input connection plate part 1 can be adjusted in this solution, with the main body of the connecting element 1000 exhibiting a certain degree of ductility and plasticity. During the actual fixed connection process, the extension direction of the output connection plate part 14 and the input connection plate part 1, or the bending direction between adjacent structural components, can be adjusted according to actual requirements. As long as the intermediate plate part has a stable loop-shaped structure, it can still generate a stable inductance when the circuit is switched on.

[0033] The connecting element 1000 is made of copper in one piece, preferably provided as red copper, and is covered on its outer circumference with a silver plating layer to increase its conductive effect.

[0034] The utility model also proposes a radio frequency power matching device, wherein the radio frequency power matching device comprises a connecting element 1000, the specific design of which relates to the embodiments described above. Since this radio frequency power matching device incorporates all the technical solutions of all the embodiments mentioned above, it exhibits at least all the advantageous effects achieved by the technical solutions of the embodiments mentioned above, which are not described again here.

[0035] The radio frequency power matching device includes an inductor 3 and a capacitor 4. During assembly and connection, the connecting wire of the inductor 3 is firmly connected to the second screw connector 2, while one end of the capacitor 4 is firmly connected to the first screw connector 132. In the actual application process, the structure of the conventional L-shaped metal connector 1000, which cannot generate inductance, is modified. In its original mounting space, the loop-shaped connector 1000 replaces the conventional L-shaped metal connector 1000 in this embodiment. The inductance generated by the connector 1000 upon power-up in this solution increases the inductance of the entire radio frequency power matching device, thereby widening its impedance matching range.The above structure can effectively improve the problem of insufficient inductance during the use of the radio frequency power matching device, which leads to an impedance value that cannot meet the usage requirements. The design is compact and simple, and no external components need to be connected. Through structural improvements, the aforementioned corresponding problems can be solved in a limited space, which has good promotional value.

[0036] The above are only preferred embodiments of the present utility model and are not intended to limit the scope of the patent. Any equivalent structural transformation produced using the description of the utility model and the content of the accompanying drawings, in accordance with the inventive concept of the utility model, and used either directly or indirectly in other related technical fields, is all covered by the scope of protection of the utility model.

Claims

[1] Connecting element for a radio frequency power adjustment device, characterized by that the connecting element is arranged in a plate shape, wherein the connecting element comprises an input connection plate part and an output connection plate part which are located at ends, wherein the output connection plate part is used for connection to an external output circuit, wherein the input connection plate part is used for connection to a first load setting part in order to set an impedance match between a power supply and the output circuit by the first load setting part; wherein the connecting element further comprises an intermediate plate part between the input connecting plate part and the output connecting plate part, wherein the intermediate plate part is arranged at least partially in a loop shape. [2] Connecting element according to claim 1, characterized byin that the intermediate plate part is arranged in a loop around the first direction, wherein the input connection plate part is arranged vertically relative to the reference plane and comprises a first plate part extending along a first direction and a second plate part extending along a second direction, wherein the second plate part is used for connection to the first load adjustment part, wherein the first direction and the second direction are two mutually perpendicular directions in the reference plane. [3] Connecting element according to claim 2, characterized by that the second plate part is provided with a connecting through-hole, wherein a first screw connector is inserted through the connecting through-hole for connection to the first load adjusting part. [4] Connecting element according to claim 3, characterized bythat the intermediate plate part comprises a first loop-shaped flat plate connected to the first plate part and extending along the second direction, a first loop-shaped vertical plate connected to the end of the first loop-shaped flat plate, a second loop-shaped flat plate connected to the first loop-shaped vertical plate, and a second loop-shaped vertical plate connected to the second loop-shaped flat plate, wherein the first loop-shaped flat plate and the second loop-shaped flat plate are arranged oppositely in the thickness direction of the intermediate plate part; wherein the output connection plate part is connected to the second loop-shaped vertical plate. [5] Connecting element according to claim 4, characterized bythat a second screw connector is provided on the second loop-shaped flat plate, wherein the second screw connector is used for connection to the second load adjusting part in order to adjust the impedance matching between the power supply and the output circuit via the second load adjusting part. [6] Connecting element according to claim 4, characterized by that the output connection plate part is arranged opposite the second loop-shaped flat plate and is located on a side facing the first loop-shaped flat plate and facing away from the second loop-shaped flat plate. [7] Connecting element according to claim 1, characterized by that the output connection plate part is provided extending relative to the reference plane, wherein the output connection plate part is provided extending along the second direction. [8] Connecting element according to claim 1, characterized bythat an elongated hole is provided in the output connection plate part through which the third screw connector can be passed for connection to the external output circuit. [9] Connecting element according to claim 1, characterized by that the connecting element is made of copper in one piece and its outer circumference is covered with a layer of silver plating. [10] Radio frequency power adjustment device, characterized by that the radio frequency power adjustment device comprises: a connecting element according to claim 5; an inductor, wherein a connecting wire of the inductor is fixedly connected to the second screw connector; and a capacitor, wherein a connection end of the capacitor is fixedly connected to the first screw connector.

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