TWM639360U - Electrical switch - Google Patents

Abstract

An electrical switch includes an insulation base, an insulative-and-movable component, at least two output ports, and at least two transmission ports. The insulative-and-movable component is disposed on the insulation base and adapted to be operated between at least two switch positions relatively to the insulation base. The two output ports are disposed on the insulation base. The two transmission ports are disposed on the insulative-and-movable component. When the insulative-and-movable component is located at one of the two switch positions, one of the two output ports is aligned with one of the two transmission ports and another one of the two output ports is misaligned with another one of the two transmission ports.

Description

electrical switch

The present invention relates to an electrical switch, and in particular to a switchable electrical switch.

A radio frequency switch (RF switch) is used in a circuit to selectively establish a conduction path between multiple contacts. Current radio frequency switches mostly use a mechanical switching structure to switch conduction paths. However, due to its complex composition, the mechanical switching structure has poor performance in terms of actuation accuracy, reliability and response time, and most of the mechanical switching structures are composed of metal components, which are easy to affect the impedance and/or other electrical properties of the RF switch. Performance is adversely affected.

The new creation provides an electrical switch, which has better actuation precision, reliability and response time, and has better impedance and/or other electrical properties.

The electric switch created by the present invention includes an insulating base body, an insulating movable part, at least two output contacts and at least two transmission contacts. The insulating movable part is movably arranged on the insulating base, and is adapted to move between at least two switching positions relative to the insulating base. The two output contacts are arranged on the insulating base body. The two transmission contacts are arranged on the insulating movable part. When the insulating movable part is in one of the two switching positions, one of the two output contacts is located in one of the two transmission contacts and the other of the two output contacts is located in one of the two transmission contacts. another. When the insulating movable part is in the other of the two switching positions, one of the output contacts is misplaced in one of the two transmission contacts and the other pair of output contacts is in the other of the two transmission contacts. one.

In an embodiment of the present invention, the insulating base has a through hole, and the two output contacts are located on the inner wall of the through hole and extend to the outside of the insulating base.

In an embodiment of the new creation, the above-mentioned insulating movable part is movably arranged in the through hole, the moving direction of the insulating movable part relative to the insulating base is the axial direction of the through hole, and the two transmission contacts are located on the sides of the insulating movable part. Radially outside.

In an embodiment of the new creation, the above-mentioned electrical switch includes at least one transmission line, wherein the transmission line is configured on the insulating movable member, and two transmission contacts are formed on the transmission line.

In an embodiment of the present invention, the above electrical switch further includes an input contact, wherein the input contact is disposed on the insulating base and connected to the transmission line.

In an embodiment of the new creation, the above-mentioned transmission line is a spiral line, and the two transmission points are respectively located at different positions of the spiral line.

In an embodiment of the present invention, the above-mentioned transmission line includes at least two linear lines separated from each other, and the two transmission nodes are respectively located on the two linear lines.

In an embodiment of the present invention, the above-mentioned electrical switch further includes a main grounding part, wherein the main grounding part is disposed inside the insulating movable part, and the transmission line is located on the outer surface of the insulating movable part and separated from the main grounding part.

In an embodiment of the new creation, the above-mentioned electrical switch further includes at least one sub-ground part, wherein the sub-ground part is arranged on the outer surface of the insulating movable part and connected to the main ground part, and between at least two sections of the transmission line There is a gap between them, and the sub-ground part is located in the gap and separated from the two sections.

In an embodiment of the present invention, the above-mentioned electrical switch further includes at least two conductive blocks, wherein the two conductive blocks are arranged on the transmission line to form two transmission contacts respectively.

In an embodiment of the new creation, the geometric centers of the above-mentioned conductive blocks are aligned with the transmission line in the actuating direction of the insulating movable member.

In an embodiment of the present invention, the geometric centers of the above-mentioned conductive blocks are staggered in the transmission line in the direction of movement of the insulating movable element.

In an embodiment of the present invention, each of the above-mentioned conductive blocks includes two conductive parts separated from each other.

In an embodiment of the new creation, the material of the insulating base and the insulating movable part includes an insulating material.

In an embodiment of the present invention, the above-mentioned insulating material includes low temperature co-fired ceramics.

In an embodiment of the new creation, the above electrical switch further includes a driving element, wherein the driving element is suitable for driving the insulating movable member to move relative to the insulating base.

In an embodiment of the present invention, the above-mentioned driving element is a piezoelectric actuator or a stepping motor.

Based on the above, in the electrical switch created by the present invention, the transmission contacts on the insulating movable part selectively correspond to the output contacts on the insulating seat as the insulating movable part moves relative to the insulating seat. To switch the conduction path. Compared with the conventional electrical switch that uses a mechanical switching structure to switch the conduction path, the electrical switch created by the new invention has better operating accuracy, reliability and Reaction time performance. Moreover, compared with the mechanical switching structure of the conventional electrical switch, which is mostly composed of metal components, the insulating seat body and the insulating movable part in the electrical switch created by the present invention can be made of non-metallic materials without causing damage to the electrical switch. Impedance and/or other electrical properties are adversely affected.

FIG. 1 is a perspective view of an electrical switch according to an embodiment of the present invention, which shows axes X, Y, and Z. FIG. 2 is a perspective view of the electrical switch in FIG. 1 from another perspective. FIG. 3 is a cross-sectional view of the electrical switch of FIG. 1, and its cross-section corresponds to line I-I of FIG. 1, while. 1 to 3, the electrical switch 100 of this embodiment is, for example, a radio frequency switch or other types of electrical switches, which include an insulating base 110, an insulating movable member 120, a plurality of output contacts (shown are output contacts 130A~130D) and a plurality of transmission contacts (illustrated as transmission contacts 140A~140D). The insulating movable member 120 is movably disposed on the insulating base 110 along the axial direction Z. The output contacts 130A- 130D are disposed on the insulating base body 110 , and the transmission contacts 140A- 140D are disposed on the insulating movable member 120 . The insulating movable member 120 is adapted to move relative to the insulating base body 110 along the axial direction Z to operate among a plurality of switching positions. The present invention does not limit the number of transmission contacts and output contacts, which can be four as mentioned above, or can be two, three, five or more.

FIG. 4 shows that the insulating movable member of FIG. 3 moves downwards, which corresponds to line II-II of FIG. 1 . FIG. 5 shows that the insulating movable member of FIG. 4 moves downwards, which corresponds to the I-I line of FIG. 1 . FIG. 6 shows that the insulating movable member of FIG. 5 moves downwards, which corresponds to line II-II of FIG. 1 . Specifically, when the insulating movable member 120 is located at the switching position shown in FIG. 3 , the output contact 130A is opposite to the transmission contact 140A and the output contacts 130B-130D are respectively mislocated to the transmission contacts 140B-140D. When the insulating movable member 120 moves downward from the switch position shown in FIG. 3 to the switch position shown in FIG. The 130B pair is located at the transmission junction 140B. When the insulating movable part 120 continues to move downward from the switching position shown in FIG. 4 to the switching position shown in FIG. Point 130C is located at transmission junction 140C. When the insulating movable part 120 continues to move downward from the switching position shown in FIG. 5 to the switching position shown in FIG. Point 130D is located at transmission junction 140D. Wherein, in Fig. 3 to Fig. 5, the part of the transmission line TL that presents the solid line only indicates that this part of the transmission line TL should be located in the near side, does not mean that this part of the transmission line TL can be directly observed in the section.

In this embodiment, the output contacts 130A- 130D are located at the same position in the axial direction Z, and the transmission contacts 140A- 140D are located in different positions in the axial direction Z, for example. Therefore, as mentioned above, when the insulating movable member 120 is located at any switching position, only one of the output contacts 130A-130D will meet the corresponding one of the transmission contacts 140A-140D to achieve the switching effect of the conduction path. In other embodiments, the output contacts 130A~130D may be located at different positions in the axial direction Z and the transmission contacts 140A~140D may be located in the same position in the axial direction Z, or the output contacts 130A~130D may be located in the axial direction Z. The transmission contacts 140A- 140D are located at different positions in the Z direction, and the transmission contacts 140A- 140D are located in different positions in the Z direction, so as to achieve the same conduction path switching effect, which is not limited by the present invention. In addition, the insulating movable part 120 of this embodiment can be arranged on the insulating base body 110 in a sliding manner along the axial direction Z as mentioned above, or can be rotatably arranged on the insulating base body 110 to switch the conduction path. Or act relative to the insulating base 110 in other appropriate ways to switch the conduction path, which is not limited by the present invention.

As mentioned above, in the electrical switch 100 of this embodiment, the transmission contacts 140A~140D on the insulating movable member 120 are selectively aligned with the insulating movable member 120 relative to the insulating base 110 as the position changes. The output contacts 130A~130D on the base body 110 are used to switch the conduction path. In this embodiment, the materials of the insulating base 110 and the insulating movable member 120 are, for example, low-temperature cofired ceramics (Low-Temperature Cofired Ceramics, LTCC) or other types of insulating materials, which is not limited in the present invention.

In detail, in this embodiment, the insulating base 110 has a through hole 110 a, and the output contacts 130A˜ 130D are located on the inner wall of the through hole 110 a and extend to the outside of the insulating base 110 . The insulating movable part 120 is movably disposed in the through hole 110a, the moving direction of the insulating movable part 120 relative to the insulating base 110 is the axial direction of the through hole 110a, and the transmission contacts 140A-140D are located radially outside of the insulating movable part 120. Moreover, the electrical switch 100 further includes a transmission line TL, the transmission line TL is disposed on the insulating movable member 120, and the transmission contacts 140A˜140D are formed on the transmission line TL. In addition, FIG. 7 is a side view of the insulating movable member of FIG. 1, an extension section TL-C of the transmission line TL extends to the outer edge of the insulating movable member 120 as shown in FIG. 4, FIG. 6 and FIG. 7, and the electrical switch 100 further includes an input contact 150 (shown in FIG. 4 and FIG. 6 ), the input contact 150 is disposed on the insulating base 110 and connected to the extension section TL-C of the transmission line TL. Therefore, no matter whether the insulating movable member 120 moves to any of the positions shown in FIGS. 3 to 6 , the transmission line TL always touches the input contact 150 through its extension section TL-C. As shown in FIG. 3 to FIG. 6 , the transmission line TL in this embodiment is, for example, a spiral line, and the transmission contacts 140A˜ 140D are respectively located at different positions of the spiral line.

The present invention does not limit the way of driving the insulating movable member 120 , which is illustrated below with an example. FIG. 8 is a schematic block diagram of some components of the electrical switch in FIG. 1 . Please refer to FIG. 8 , the electrical switch 100 of the present embodiment further includes a driving element 160, the driving element 160 is connected to the insulating movable member 120 and is suitable for driving the insulating movable member 120 relative to the insulating base 110 (shown in FIGS. Fig. 6) actuation (such as moving along the Z axis or rotating around the Z axis). The driving element 160 is, for example, a piezoelectric actuator, a stepping motor or other types of actuators, to which the present invention is not limited.

Fig. 9 is a plan view of the insulating movable member of Fig. 1 . Please refer to FIG. 9 , in this embodiment, the electrical switch 100 (shown in FIGS. 1 to 8 ) further includes a main grounding portion 170 , and the main grounding portion 170 is disposed inside the insulating movable member 120 . As shown in FIGS. 3 to 6 , the transmission line TL is located on the outer surface of the insulating movable member 120 and separated from the main ground portion 170 .

Fig. 10 is a perspective view of an insulating movable part of another embodiment of the present invention. The main difference between the embodiment shown in FIG. 10 and the previous embodiments is that the electrical switch in FIG. 10 further includes a sub-ground portion 180, which is disposed on the outer surface of the insulating movable member 120 and connected inwardly to the main ground portion 170. , there is a gap G between two adjacent sections of the transmission line TL, and the sub-ground portion 180 is located in the gap G and separated from the two adjacent sections of the transmission line TL. In addition to providing the grounding function together with the main grounding part 170 , the sub-ground part 180 can also provide shielding between two adjacent sections of the transmission line TL to prevent the two adjacent sections of the transmission line TL from interfering with each other.

Fig. 11 is a perspective view of an insulating movable part of another embodiment of the present invention. FIG. 12 illustrates the transmission line of FIG. 11 connected to the output contacts. The main difference between the embodiment shown in Figure 11 and Figure 12 and the previous embodiment is that the electrical switch in Figure 11 and Figure 12 further includes a plurality of conductive blocks B, which are arranged on the transmission line TL to form a plurality of transmission lines respectively. contacts (such as the transmission contacts 140A-140D in the foregoing embodiments). The conductive block B is, for example, a rectangular body, which is used to provide a larger contact area to contact the output contacts (the output contact 130A is taken as an example in FIG. 12 ).

In the embodiment shown in FIG. 11 and FIG. 12 , each conductive block B is located above the transmission line TL, so that the geometric center of each conductive block B is staggered to the transmission line in the direction of movement of the insulating movable member 120 (that is, the axial direction Z). Road TL. The present invention does not limit the configuration of the conductive block B, which is illustrated below with an example. FIG. 13 is a schematic diagram of a transmission line and a conductive block according to another embodiment of the present invention. The main difference between the embodiment shown in FIG. 13 and the previous embodiments is that the conductive block B in FIG. 13 is located below the transmission line TL instead of above the transmission line TL. FIG. 14 is a schematic diagram of a transmission line and a conductive block in another embodiment of the present invention. The main difference between the embodiment shown in FIG. 14 and the preceding embodiments is that the conductive block B in FIG. 14 has a larger width in the extending direction of the transmission line TL, and the geometric center of the conductive block B is in the actuating direction of the insulating movable member. The pair is located on the transmission line TL. FIG. 15 is a schematic diagram of transmission lines and conductive blocks in another embodiment of the present invention. The main difference between the embodiment shown in FIG. 15 and the previous embodiments is that the conductive block B in FIG. 15 includes two conductive parts C separated from each other.

In addition, the present invention does not impose restrictions on the form of the transmission line, which is illustrated below with an example. Fig. 16 is a perspective view of an insulating movable part of another embodiment of the present invention. The main difference between the embodiment shown in FIG. 16 and the previous embodiments is that the transmission line TL' in FIG. 16 includes a plurality of linear lines separated from each other, and a plurality of transmission contacts 140A~140D are respectively located on these linear lines, and each straight line The lower end of the shaped line is used to connect the input contact of the electrical switch (input contact 150 shown in FIG. 4 and FIG. 6). In other embodiments, the transmission lines can be in other forms and numbers, as long as the transmission contacts 140A~140D can be selectively positioned on the insulating base 110 as the insulating movable part 120 moves relative to the insulating base 110 The output contacts of 130A~130D are enough.

To sum up, in the electrical switch created by the present invention, the transmission contacts on the insulating movable part selectively correspond to the output contacts on the insulating seat as the insulating movable part moves relative to the insulating seat. , so as to switch the conduction path. Compared with the conventional electrical switch that uses a mechanical switching structure to switch the conduction path, the electrical switch created by the new invention has better operating accuracy, reliability and Reaction time performance. Moreover, compared with the mechanical switching structure of the conventional electrical switch, which is mostly composed of metal components, the insulating seat body and the insulating movable part in the electrical switch created by the present invention can be made of non-metallic materials without causing damage to the electrical switch. Impedance and/or other electrical properties are adversely affected.

100: electrical switch 110: insulating seat body 110a: through hole 120: insulating movable part 130A~130D: output contacts 140A~140D: transmission contact 150: input contact 160: drive element 170: Main grounding part 180: sub-ground part C: Conductive part B: Conductive block G: Gap TL, TL': transmission line TL-C: Extended segment X, Y, Z: Axial

FIG. 1 is a perspective view of an electrical switch according to an embodiment of the present invention. FIG. 2 is a perspective view of the electrical switch in FIG. 1 from another perspective. FIG. 3 is a cross-sectional view of the electrical switch of FIG. 1 . FIG. 4 illustrates that the insulating movable part of FIG. 3 moves downwards. FIG. 5 illustrates that the insulating movable part of FIG. 4 moves downwards. FIG. 6 illustrates that the insulating movable part of FIG. 5 moves downwards. Fig. 7 is a side view of the insulating movable member of Fig. 1 . FIG. 8 is a schematic block diagram of some components of the electrical switch in FIG. 1 . Fig. 9 is a plan view of the insulating movable member of Fig. 1 . Fig. 10 is a perspective view of an insulating movable part of another embodiment of the present invention. Fig. 11 is a perspective view of an insulating movable part of another embodiment of the present invention. FIG. 12 illustrates the transmission line of FIG. 11 connected to the output contacts. FIG. 13 is a schematic diagram of transmission lines and conductive blocks in another embodiment of the present invention. Fig. 14 is a schematic diagram of transmission lines and conductive blocks in another embodiment of the present invention. Fig. 15 is a schematic diagram of transmission lines and conductive blocks in another embodiment of the present invention. Fig. 16 is a perspective view of an insulating movable part of another embodiment of the present invention.

100: electrical switch

110: insulating seat body

110a: through hole

120: insulating movable part

130B, 130D: output contacts

140A~140D: transmission contact

150: input contact

TL: transmission line

TL-C: Extended segment

X, Y, Z: Axial

Claims (17)

An electrical switch comprising: an insulating base; An insulating movable part is movably arranged on the insulating base and is suitable for moving between at least two switching positions relative to the insulating base; At least two output contacts are arranged on the insulating base; and At least two transmission contacts are arranged on the insulating movable member, Wherein when the insulating movable member is located in one of the at least two switching positions, one of the at least two output contacts is located at one of the at least two transmission contacts and the other of the at least two output contacts is a misplaced at the other of the at least two transmission points, When the insulating movable member is located in the other of the at least two switch positions, the one of the at least two output contacts is misplaced in the one of the at least two transmission contacts and the at least two output contacts are The other pair is located at the other one of the at least two transmission nodes. The electrical switch according to claim 1, wherein the insulating base has a through hole, and the at least two output contacts are located on the inner wall of the through hole and extend to the outside of the insulating base. The electrical switch according to claim 2, wherein the insulating movable part is movably arranged in the through hole, and the moving direction of the insulating movable part relative to the insulating base is the axial direction of the through hole, and the at least two transmission The contacts are located radially outside the insulating movable member. The electrical switch according to claim 1, comprising at least one transmission line, wherein the at least one transmission line is configured on the insulating movable member, and the at least two transmission contacts are formed on the at least one transmission line. The electrical switch according to claim 4 further includes an input contact, wherein the input contact is disposed on the insulating base and connected to the at least one transmission line. The electrical switch as claimed in claim 4, wherein the at least one transmission line is a spiral line, and the at least two transmission contacts are respectively located at different positions of the spiral line. The electrical switch as claimed in claim 4, wherein the at least one transmission line includes at least two straight lines separated from each other, and the at least two transmission contacts are respectively located on the at least two straight lines. The electrical switch according to claim 4, further comprising a main grounding part, wherein the main grounding part is arranged inside the insulating movable part, and the at least one transmission line is located on the outer surface of the insulating movable part and separated from the main grounding part. grounding part. The electrical switch according to claim 8, further comprising at least one sub-ground part, wherein the at least one sub-ground part is arranged on the outer surface of the insulating movable part and connected to the main ground part, and the at least one transmission line There is a gap between the at least two sections, and the at least one sub-ground portion is located in the gap and separated from the at least two sections. The electrical switch according to claim 4 further comprises at least two conductive blocks, wherein the at least two conductive blocks are arranged on the at least one transmission line to form the at least two transmission contacts respectively. The electrical switch as claimed in claim 10, wherein the geometric center of each of the conductive blocks is opposite to the at least one transmission line in the actuating direction of the insulating movable member. The electrical switch as claimed in claim 10, wherein the geometric center of each conductive block is misaligned with the at least one transmission line in the actuating direction of the insulating movable member. The electrical switch as claimed in claim 10, wherein each of the conductive blocks includes two conductive parts separated from each other. The electrical switch according to claim 1, wherein the insulating base and the insulating movable part are made of an insulating material. The electrical switch of claim 14, wherein the insulating material comprises low temperature co-fired ceramics. The electrical switch according to claim 1 further includes a driving element, wherein the driving element is suitable for driving the insulating movable member to move relative to the insulating base. The electrical switch as claimed in claim 16, wherein the driving element is a piezoelectric actuator or a stepping motor.

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