CN218887013U

CN218887013U - Electrical switch

Info

Publication number: CN218887013U
Application number: CN202223073365.6U
Authority: CN
Inventors: 张书维
Original assignee: Jinyan Technology Co ltd
Current assignee: Jinyan Technology Co ltd
Priority date: 2022-02-20
Filing date: 2022-11-18
Publication date: 2023-04-18
Anticipated expiration: 2032-11-18
Also published as: TW202335357A; TW202335443A; CN116633381A; TWI828420B; TWM639360U

Abstract

The utility model provides an electrical switch, including insulating pedestal, insulating movable piece, two at least output contact and two at least transmission contact. The insulating movable piece is movably arranged on the insulating base body and is suitable for moving between at least two switching positions relative to the insulating base body. The two output contacts are arranged on the insulating base. The two transmission contacts are arranged on the insulating movable piece. When the insulating movable member is located at one of the two switching positions, one pair of the two output contacts is located at one of the two transmission contacts and the other pair of the two output contacts is dislocated at the other transmission contact. When the insulating movable member is located at one of the two switching positions, one of the output contacts is erroneously located at one of the two transmission contacts and the other pair of the output contacts is located at the other of the two transmission contacts. The utility model discloses an electrical property switch has the precision of acting, reliability and reaction time of preferred, and has good impedance and/or other electrical behavior expressions.

Description

Electrical switch

Technical Field

The present invention relates to an electrical switch, and more particularly to a switchable electrical switch.

Background

Radio frequency switches (RF switches) are used in circuits to selectively establish conductive paths between a plurality of contacts. Most of the existing RF switches use a mechanical switching structure to switch the conduction path. However, the mechanical switching structure is not good in operation precision, reliability and response time due to its complex composition, and the mechanical switching structure is mostly made of metal components, which is liable to have adverse effects on the impedance and/or other electrical performance of the rf switch.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrical property switch has the precision of acting, reliability and reaction time of preferred, and has good impedance and/or other electrical behavior.

The utility model discloses an electrical property switch, including insulating pedestal, insulating movable piece, two at least output contact and two at least transmission contact. The insulating movable piece is movably arranged on the insulating base body and is suitable for moving between at least two switching positions relative to the insulating base body. The two output contacts are arranged on the insulating base. The two transmission contacts are arranged on the insulating movable piece. When the insulating movable member is located at one of the two switching positions, one pair of the two output contacts is located at one of the two transmission contacts and the other pair of the two output contacts is dislocated at the other transmission contact. When the insulating movable member is located at one of the two switching positions, one of the output contacts is erroneously located at one of the two transmission contacts and the other pair of the output contacts is located at the other of the two transmission contacts.

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

In an embodiment of the present invention, the movable insulating member is movably disposed in the through hole, the movable insulating member is axially disposed in the through hole relative to the insulating base, and the two transmission contacts are located at a radial outer side of the movable insulating member.

In an embodiment of the present invention, the electrical switch includes at least one transmission line, wherein the transmission line is disposed on the insulating movable member, and the two transmission contacts are formed on the transmission line.

In an embodiment of the present invention, the 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 present invention, the transmission line is a spiral line, and the two transmission contacts are respectively located at different positions of the spiral line.

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

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

In an embodiment of the present invention, the electrical switch further includes at least one sub-grounding portion, wherein the sub-grounding portion is disposed on an outer surface of the insulating movable member and connected to the main grounding portion, a gap is formed between at least two sections of the transmission line, and the sub-grounding portion is located in the gap and separated from the two sections.

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

In an embodiment of the present invention, the geometric centers of the conductive blocks are aligned to the transmission line in the actuating direction of the insulating movable element.

In an embodiment of the present invention, the geometric center of each conductive block is located at the transmission line in the actuating direction of the insulating movable element.

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

In an embodiment of the present invention, the insulating base and the insulating movable member are made of an insulating material.

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

In an embodiment of the present invention, the electrical switch further includes a driving component, wherein the driving component is adapted to drive the insulating movable member to move relative to the insulating base.

In an embodiment of the present invention, the driving component is a piezoelectric actuator or a stepping motor.

Based on the above, in the electrical switch of the present invention, each transmission contact on the insulating movable member selectively aligns to the output contact on the insulating base along with the movement of the insulating movable member relative to the insulating base, so as to switch the conduction path. Compared with the conventional electrical switch which uses a mechanical switching structure to switch the conduction path, the electrical switch of the present invention has better performance of operation precision, reliability and response time by the operation of the single insulating movable member relative to the insulating base. In addition, compared to the conventional mechanical switch structure of the electrical switch, which is mostly composed of metal components, the insulating base and the insulating movable member in the electrical switch of the present invention can be made of non-metal materials, so that the impedance and/or other electrical characteristics of the electrical switch are not adversely affected.

In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

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 of fig. 1 from another perspective.

Fig. 3 is a cross-sectional view of the electrical switch of fig. 1.

FIG. 4 illustrates the downward movement of the insulating movable member of FIG. 3.

FIG. 5 shows the downward movement of the insulating movable member of FIG. 4.

FIG. 6 shows the downward movement of the insulating movable member of FIG. 5.

Fig. 7 is a side view of the insulating movable member of fig. 1.

Fig. 8 is a block diagram of a portion of the components of the electrical switch of 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 member according to another embodiment of the present invention.

Fig. 11 is a perspective view of an insulating movable member according to another embodiment of the present invention.

Fig. 12 illustrates the transmission line connection output contacts of fig. 11.

Fig. 13 is a schematic diagram of a transmission line and a conductive block according to another embodiment of the present invention.

Fig. 14 is a schematic diagram of a transmission line and a conductive block according to another embodiment of the present invention.

Fig. 15 is a schematic diagram of a transmission line and a conductive block according to another embodiment of the present invention.

Fig. 16 is a perspective view of an insulating movable member according to another embodiment of the present invention.

Detailed Description

Fig. 1 is a perspective view of an electrical switch according to an embodiment of the present invention, illustrating an axial direction X, Y, Z. Fig. 2 is a perspective view of the electrical switch of fig. 1 from another perspective. Fig. 3 is a cross-sectional view of the electrical switch of fig. 1, the cross-section corresponding to the line I-I of fig. 1. Referring to fig. 1 to 3, an electrical switch 100 of the present embodiment is, for example, a radio frequency switch or other types of electrical switches, and includes an insulating base 110, an insulating movable member 120, a plurality of output contacts (shown as output contacts 130A to 130D), and a plurality of transmission contacts (shown as transmission contacts 140A to 140D). The insulating movable member 120 is movably disposed on the insulating base 110 along the axial direction Z. The output contacts 130A to 130D are disposed on the insulating base 110, and the transmission contacts 140A to 140D are disposed on the insulating movable member 120. The insulating movable member 120 is adapted to move along the axial direction Z relative to the insulating base 110 to move between a plurality of switching positions. The present invention does not limit the number of transmission contacts and output contacts, which may be four as described above, or may be two, three, five or more.

FIG. 4 illustrates the downward movement of the insulating movable member of FIG. 3, which corresponds to line II-II of FIG. 1. FIG. 5 illustrates the downward movement of the insulating movable member of FIG. 4, which corresponds to line I-I of FIG. 1. FIG. 6 illustrates the downward movement of the insulating movable member of FIG. 5, 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 located at the transmission contact 140A, and the output contacts 130B to 130D are located at the transmission contacts 140B to 140D in a staggered manner, respectively. When the insulating movable member 120 moves downward from the switching position shown in fig. 3 to the switching position shown in fig. 4, the

output contacts

130A, 130C, and 130D are respectively positioned at the

transmission contacts

140A, 140C, and 140D in a staggered manner, and the output contact 130B is positioned at the transmission contact 140B. When the insulating movable member 120 moves downward from the switching position shown in fig. 4 to the switching position shown in fig. 5, the

output contacts

130A, 130B, and 130D are misplaced at the

transmission contacts

140A, 140B, and 140D, respectively, and the output contact 130C is misplaced at the transmission contact 140C. When the insulating movable member 120 moves downward from the switching position shown in fig. 5 to the switching position shown in fig. 6, the

output contacts

130A, 130B, and 130C are located at the

transmission contacts

140A, 140B, and 140C in a staggered manner, and the output contact 130D is located at the transmission contact 140D. In fig. 3 to 5, the solid line of the part of the transmission line TL only indicates that the part of the transmission line TL should be located on the near side with respect to the insulated movable member 120 in the I-I or II-II being sectioned in the line of sight, and does not indicate that the part of the transmission line TL can be directly observed in the section.

In the present embodiment, the output contacts 130A to 130D are located at the same position in the axial direction Z, for example, and the transmission contacts 140A to 140D are located at different positions in the axial direction Z, for example. Thus, as mentioned above, when the insulating movable element 120 is located at any switching position, only one of the output contacts 130A-130D will be opposite to the corresponding one of the transmission contacts 140A-140D, so as to achieve the effect of switching the conduction path. In other embodiments, the output contacts 130A to 130D may be located at different positions in the axial direction Z and the transmission contacts 140A to 140D may be located at the same position in the axial direction Z, or the output contacts 130A to 130D may be located at different positions in the axial direction Z and the transmission contacts 140A to 140D may be located at different positions in the axial direction Z, so as to achieve the same switching effect of the conduction path. In addition, the insulating movable element 120 of the present embodiment may be disposed on the insulating base 110 in a sliding manner along the axial direction Z as described above, or may be rotatably disposed on the insulating base 110 to switch the conduction path, or may be actuated relative to the insulating base 110 in other suitable manners to switch the conduction path, which is not limited by the present invention.

As described above, in the electrical switch 100 of the present embodiment, the transmission contacts 140A to 140D on the insulating movable member 120 selectively align with the output contacts 130A to 130D on the insulating base 110 according to the position change of the insulating movable member 120 relative to the insulating base 110, so as to switch the conducting paths. In the present embodiment, the insulating base 110 and the insulating movable member 120 are made of, for example, low-Temperature Cofired Ceramics (LTCC) or other insulating materials, which is not limited by the present invention.

In detail, in the present embodiment, the insulation base 110 has a through hole 110A, and the output contacts 130A to 130D are located on an inner wall of the through hole 110A and extend to an outer side of the insulation base 110. The insulating movable member 120 is movably disposed in the through hole 110A, the direction of the insulating movable member 120 relative to the insulating base 110 is the axial direction of the through hole 110A, and the transmission contacts 140A-140D are located at the radial outer side of the insulating movable member 120. The electrical switch 100 further includes a transmission line TL disposed in the insulating movable element 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, the extended section TL-C of the transmission line TL extends to the outer edge of the insulating movable member 120 as shown in fig. 4, 6 and 7, the electrical switch 100 further includes an input contact 150 (shown in fig. 4 and 6), and the input contact 150 is disposed on the insulating base 110 and connected to the extended section TL-C of the transmission line TL. Thus, the transmission line TL always contacts the input contact 150 by its extended section TL-C, regardless of the position of the insulating movable member 120 as shown in any of FIGS. 3 to 6. As shown in fig. 3 to 6, the transmission line TL of the present embodiment is, for example, a spiral line, and the transmission contacts 140A to 140D are respectively located at different positions of the spiral line.

The present invention does not limit the manner of driving the insulating movable member 120, which is exemplified below. Fig. 8 is a block diagram of a portion of the components of the electrical switch of fig. 1. Referring to fig. 8, the electrical switch 100 of the present embodiment further includes a driving assembly 160, where the driving assembly 160 is connected to the insulating movable member 120 and is adapted to drive the insulating movable member 120 to move (for example, move along the Z axis or rotate around the Z axis) relative to the insulating base 110 (shown in fig. 1 to 6). The driving assembly 160 is, for example, a piezoelectric actuator, a stepping motor or other actuator, which is not limited by the present invention.

Fig. 9 is a plan view of the insulating movable member of fig. 1. Referring to fig. 9, in the present embodiment, the electrical switch 100 (labeled in fig. 1 to 8) further includes a main ground portion 170, and the main ground portion 170 is disposed inside the insulating movable member 120. The transmission line TL is located on the outer surface of the insulating movable member 120 and separated from the main ground 170 as shown in fig. 3 to 6.

Fig. 10 is a perspective view of an insulating movable member according to another embodiment of the present invention. The main difference between the embodiment shown in fig. 10 and the foregoing embodiment is that the electrical switch of fig. 10 further includes a sub-ground portion 180, the sub-ground portion 180 is disposed on the outer surface of the insulating movable member 120 and is connected to the main ground portion 170 inward, a gap G is formed between two adjacent sections of the transmission line TL, and the sub-ground portion 180 is located at the gap G and is separated from the two adjacent sections of the transmission line TL. The sub-ground 180 can provide a grounding function together with the main ground 170, and can further shield 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 member according to another embodiment of the present invention. Fig. 12 illustrates the transmission line connection output contacts of fig. 11. The main difference between the embodiment shown in fig. 11 and 12 and the foregoing embodiment is that the electrical switch shown in fig. 11 and 12 further includes a plurality of conductive blocks B, and the conductive blocks B are disposed on the transmission line TL to respectively form a plurality of transmission contacts (e.g., the transmission contacts 140A to 140D in the foregoing embodiment). The conductive block B is, for example, a rectangular body, which is used to provide a larger contact area to contact the output contact (the output contact 130A is taken as an example in fig. 12).

In the embodiment shown in fig. 11 and 12, each conductive block B is located above the transmission line TL, such that the geometric center of each conductive block B is offset from the transmission line TL in the actuating direction (i.e. axial direction Z) of the insulating movable member 120. The present invention is not limited to the configuration of the conductive block B, and this is exemplified below. 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 of fig. 13 is located below the transmission line TL, rather than above the transmission line TL. Fig. 14 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. 14 and the foregoing 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 opposite to the transmission line TL in the moving direction of the insulating movable member. Fig. 15 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. 15 and the previous embodiments is that the conductive block B of fig. 15 includes two conductive portions C separated from each other.

In addition, the present invention does not limit the form of the transmission line, which is exemplified below. Fig. 16 is a perspective view of an insulating movable member according to another embodiment of the present invention. The main difference between the embodiment shown in fig. 16 and the foregoing embodiments is that the transmission line TL' in fig. 16 includes a plurality of linear lines separated from each other, a plurality of transmission contacts 140A to 140D are respectively located on the linear lines, and the lower end of each linear line is used to connect to an input contact (e.g., the input contact 150 shown in fig. 4 and 6) of the electrical switch. In other embodiments, the transmission lines can be in other forms and numbers as long as each of the transmission contacts 140A to 140D can be selectively aligned with the output contacts 130A to 130D on the insulating base 110 along with the movement of the insulating movable member 120 relative to the insulating base 110.

In summary, in the electrical switch of the present invention, each transmission contact on the insulating movable element selectively aligns with the output contact on the insulating base along with the movement of the insulating movable element relative to the insulating base, so as to switch the conduction path. Compared with the conventional electrical switch which uses a mechanical switching structure to switch the conduction path, the electrical switch of the present invention has better performance of operation precision, reliability and response time by the operation of the single insulating movable member relative to the insulating base. In addition, compared to the conventional mechanical switch structure of the electrical switch, which is mostly composed of metal components, the insulating base and the insulating movable member in the electrical switch of the present invention can be made of non-metal materials, so that the impedance and/or other electrical characteristics of the electrical switch are not adversely affected.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An electrical switch, comprising:

an insulating base body;

the insulating movable piece is movably arranged on the insulating base body and is suitable for acting between at least two switching positions relative to the insulating base body;

at least two output contacts configured on the insulating base; and

at least two transmission contacts disposed on the insulating movable member,

wherein when the insulating movable member is located at one of the at least two switching positions, one pair of the at least two output contacts is located at one of the at least two transmission contacts and the other pair of the at least two output contacts is staggered at the other transmission contact,

when the insulated movable member is located at one of the at least two switching positions, the one of the at least two output contacts is located at the one of the at least two transmission contacts and the other of the at least two output contacts is located at the other of the at least two transmission contacts.

2. The electrical switch of claim 1, wherein the insulating base has a through hole, and the at least two output contacts are located on an inner wall of the through hole and extend to an outer side of the insulating base.

3. The electrical switch of claim 2, wherein the movable insulating member is movably disposed in the through hole, the movable insulating member moves relative to the insulating housing in an axial direction of the through hole, and the at least two transmission contacts are located at a radial outer side of the movable insulating member.

4. The electrical switch of claim 1, further comprising at least one transmission line, wherein the at least one transmission line is disposed on the insulating movable member, and the at least two transmission contacts are formed on the at least one transmission line.

5. The electrical switch of claim 4, further comprising an input contact, wherein the input contact is disposed on the insulative housing and connected to the at least one transmission line.

6. The electrical switch of claim 4, wherein the at least one transmission line is a spiral line, and the at least two transmission contacts are located at different positions of the spiral line.

7. The electrical switch of claim 4, wherein the at least one transmission line comprises at least two linear lines separated from each other, and the at least two transmission contacts are respectively located on the at least two linear lines.

8. The electrical switch of claim 4, further comprising a main ground, wherein the main ground is disposed inside the insulating movable member, and the at least one transmission line is disposed on an outer surface of the insulating movable member and separated from the main ground.

9. The electrical switch of claim 8, further comprising at least one sub-ground, wherein the at least one sub-ground is disposed on the outer surface of the insulating movable member and connected to the main ground, and wherein at least two segments of the at least one transmission line have a gap therebetween, and the at least one sub-ground is located in the gap and separated from the at least two segments.

10. The electrical switch of claim 4, further comprising at least two conductive bumps, wherein the at least two conductive bumps are disposed on the at least one transmission line to form the at least two transmission contacts, respectively.

11. The electrical switch of claim 10, wherein the geometric center of each conductive block is aligned with the at least one transmission line in the actuation direction of the insulating movable member.

12. The electrical switch of claim 10, wherein the geometric center of each conductive block is offset from the at least one transmission line in the actuation direction of the insulating movable member.

13. The electrical switch of claim 10, wherein each of the conductive masses includes two conductive portions separated from each other.

14. The electrical switch of claim 1, wherein the insulating base and the insulating movable member are made of an insulating material.

15. The electrical switch of claim 14, wherein the insulating material comprises a low temperature co-fired ceramic.

16. The electrical switch of claim 1, further comprising a driving assembly, wherein the driving assembly is adapted to drive the insulating movable member to move relative to the insulating base.

17. The electrical switch of claim 16, wherein the drive component is a piezoelectric actuator or a stepper motor.