WO2000062340A1 - Cantilevered clamp for securing electronic components to a base plate - Google Patents

Cantilevered clamp for securing electronic components to a base plate Download PDF

Info

Publication number
WO2000062340A1
WO2000062340A1 PCT/US2000/009020 US0009020W WO0062340A1 WO 2000062340 A1 WO2000062340 A1 WO 2000062340A1 US 0009020 W US0009020 W US 0009020W WO 0062340 A1 WO0062340 A1 WO 0062340A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical component
cantilevered
support
clamp
base plate
Prior art date
Application number
PCT/US2000/009020
Other languages
French (fr)
Inventor
F. Harry Naylor
Original Assignee
Ericsson, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson, Inc. filed Critical Ericsson, Inc.
Priority to AU41990/00A priority Critical patent/AU4199000A/en
Publication of WO2000062340A1 publication Critical patent/WO2000062340A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/40—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs
    • H01L23/4006—Mountings or securing means for detachable cooling or heating arrangements ; fixed by friction, plugs or springs with bolts or screws
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the present invention relates to electrical components and structures for dissipating heat therefrom, and more particularly to a support and clamping system that is designed to efficiently dissipate heat from an electrical component while securing that component to a base plate.
  • the electrical components such as RF transistors are typically secured to a base plate by screws.
  • the electrical components may include one or more flanges that project outwardly from the electrical device. Normally, screw openings are provided in the flange or flanges. In securing the electrical device to the base plate, these screws project through the openings in the flanges and into openings within the base plate, securing the electrical component firmly on the
  • the present invention entails a cantilevered clamp for engaging and clamping an electrical component to a base plate.
  • the electrical component includes one or more flanges that project outwardly along the surface of the base plate.
  • Secured to the base plate adjacent the electrical component is the cantilevered clamp.
  • the cantilevered clamp includes a foot that rests on the base plate and a cantilevered member that is integrally formed with the foot and projects over the base plate where it overlies the flange.
  • a threaded screw extends through an opening in the cantilevered clamp and into an underlying threaded opening within the base plate. By tightening the threaded screw, the cantilevered member is urged down into engagement with the flange of the electrical component.
  • the electrical component could include a number of flanges and in such a case, there would be provided a like number of cantilevered clamps for engaging the flanges.
  • the cantilevered clamp may simply be positioned such that it engages a top portion or some other portion of the electrical component.
  • Figure 1 is a perspective and an exploded view showing a pair of cantilevered clamps securing an electrical component to a base plate.
  • Figure 2 is a longitudinal sectional view illustrating the cantilevered clamps securing the electrical component to the base plate.
  • Figure 3 is a top plan view illustrating the cantilevered clamps securing the electrical component to the base plate.
  • the present invention entails an electrical component, indicated generally by the numeral 10, that is disposed on a base plate or support 30 and secured thereon by a pair of cantilevered clamps indicated generally by the numeral 50.
  • the cantilevered clamps 50 act to clamp and secure the electrical component 10 to the base plate 30 and at the same time, the cantilevered clamps assist in dissipating heat from the electrical component 10.
  • the electrical component 10 may be in the form of various electrical devices.
  • the electrical component 10 may be an RF transistor, an amplifier, various semi-conductor devices, or other types of electrical components that generate heat that require efficient heat dissipation in order for the electrical component to perform efficiently.
  • the electrical component 10 includes a housing having a top 12, a pair of opposed sides 14, a pair of opposed ends 16 and two flanges 18 that project outwardly from the device.
  • Flanges 18 include screw cutouts. However, it should be understood that the respective flanges 18 may very well be continuous and without such screw cutouts.
  • Base plate 30 For supporting the electrical component 10, there is provided a base plate or support indicated generally by the numeral 30.
  • Base plate 30 could be constructed of various materials but it is contemplated that in one embodiment the base plate 30 would be formed or constructed from a metal which would normally include good heat conductive properties and would facilitate the dissipation of heat from the electrical component 10.
  • the base plate 30 includes an upper surface 32 for receiving and supporting the electrical component 10 and one or more threaded openings 34 formed in the top portion of the base plate 30. In the embodiment illustrated herein, there are two threaded openings 34 that are spaced outwardly from the electrical component 10.
  • the base plate 30 described herein is one example of a support structure, it is appreciated that other forms of supports could be used to support the electrical compound set.
  • each clamp being adapted to be secured to the base plate 30 and to project into a clamping relationship with a respective flange 18 of the electrical component 10.
  • the cantilevered clamp 50 includes a foot or base portion that is designed to rest on the upper surface 32 of the base plate 30. Projecting from the foot or base portion of the cantilevered clamp 50 is a cantilevered member.
  • the cantilevered member as seen in figure 2 is spaced above the upper surface 32 of the base plate 30 and projects over and onto an adjacent flange 18.
  • a threaded retainer that secures the cantilevered clamp to the base plate 30 and in that process the cantilevered clamp 50 clamps downwardly onto the flange 18 of the electrical component 10 so as hold and secure the same in place.
  • each cantilevered clamp 50 comprises a foot 52. Foot 52 projects downwardly and engages the upper surface 32 of the base plate 30.
  • each cantilevered clamp 50 includes a top 54 and a pair of opposed sides 56. Formed about the front of the cantilevered clamp 60 is a pair of beveled corners 58 connected by a front side 60. The corners could be round or any other shape.
  • the cantilevered clamp 50 includes a bottom 62 that is generally spaced above the upper surface 32 of the base plate 30. In fact, the bottom 32 tends to extend over the base plate 30 in a bridge-like fashion and the front portion of the bottom, in the embodiment illustrated herein, overlies and engages the top surface of a respective flange 18.
  • each cantilevered clamp is provided with an elongated opening 64.
  • a retainer or securing device such as a screw.
  • the retainer is in the form of a thumb screw having an upper gripping portion 68 and a lower threaded shaft 66.
  • the threaded shaft 66 is designed such that it will screw into and out of the threaded opening 34 formed in the base plate 30. Because of the elongated nature of the opening 64, it follows that the cantilevered clamp 50 can be adjustably positioned on the base plate 30.
  • the cantilevered clamps 50 engage the respective flanges 18 of the electrical component 10.
  • the electrical component 10 include the flanges 18 disclosed herein.
  • a single cantilevered clamp could be used to engage and clamp other surfaces of the electrical component 10, such as the top surface.
  • the cantilevered clamp 50 would be serving the same basic function. That is, it would be securing the electrical component to a base plate or support structure and at the same time would function to assist in transferring and dissipating heat from the electrical component 10.
  • the cantilevered clamping system described above and shown in the drawings can be used in production designs as well as in testing environments.
  • the cantilevered clamp can be used in bench testing to clamp RF power transistors and other devices as well as other electrical components that generate significant heat.
  • one or more cantilevered clamps can be used to secure RF powered transistors for example, and other electrical components to a base plate or support.
  • the cantilevered clamp saves assembly time as there is less hardware to handle and possibly misplace. In testing particularly, the cantilevered clamp saves time. An electrical component undergoing testing can be simply inserted or removed from the test area by either tightening or loosening the screws and sliding the cantilevered clamp back and forth. In short, the cantilevered clamp does not have to be removed from the base plate 30 in order to insert or remove an electrical component. In performing testing, the use of the cantilevered clamp assures that the flanges of the electrical component will not be marred.
  • the use of the cantilevered clamp of the present invention provides for increased heat transfer from the electrical component. This, of course, improves the performance of the electrical component including its thermal dynamics and RF characteristics.

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

An electrical component (10), such as a semi-conductor, is mounted on a base plate (30) and secured thereon by one or more cantilevered clamps (50). The electrical component includes at least one flange (18) projecting outwardly therefrom. Disposed adjacent the electrical component is a cantilevered clamp (50) that is secured to the support (30) and projects therefrom over the support and engages and clamps downwardly on an upper surface of the flange (18). Heat generated by the electrical component (10) is efficiently dissipated by the flange (18) and cantilevered clamp (50).

Description

CANTILEVERED CLAMP FOR SECURING ELECTRONIC COMPONENTS TO
A BASE PLATE
FIELD OF THE INVENTION
The present invention relates to electrical components and structures for dissipating heat therefrom, and more particularly to a support and clamping system that is designed to efficiently dissipate heat from an electrical component while securing that component to a base plate.
BACKGROUND OF THE INVENTION
Electrical components such as RF transistors are typically secured to a base plate by screws. The electrical components may include one or more flanges that project outwardly from the electrical device. Normally, screw openings are provided in the flange or flanges. In securing the electrical device to the base plate, these screws project through the openings in the flanges and into openings within the base plate, securing the electrical component firmly on the
base plate.
There are numerous disadvantages and shortcomings to this approach for securing such electrical components to a support or base plate. First, to replace the electrical component itself, requires complete removal of the securing hardware. In some cases, the hardware may even be lost. Further, screws, through tightening and untightening, tend to score the flanges. Also, when tightening the screws, the electrical component in some cases tend to twist, causing soldered connections to break. Uneven pressure exerted by the screws on the flanges results in poor distribution of the thermal compound that is typically disposed between the base plate and the flanges. Additionally, this uneven pressure results in a non-uniform contact between the flanges and underlying mounting surface. This uneven contact often results in poor heat transfer from the electrical component to the base plate, consequentially resulting in less than optimum heat dissipation from the electrical component. Consequently, the efficiency and performance of the electrical component, whether it be an RF transistor or other heat producing electrical component, may be adversely affected.
Therefore, there has been and continues to be a need for a support and securing system for use in conjunction with such electrical components that will address the above shortcomings and disadvantages.
SUMMARY OF THE INVENTION
The present invention entails a cantilevered clamp for engaging and clamping an electrical component to a base plate. In a preferred embodiment, the electrical component includes one or more flanges that project outwardly along the surface of the base plate. Secured to the base plate adjacent the electrical component is the cantilevered clamp. The cantilevered clamp includes a foot that rests on the base plate and a cantilevered member that is integrally formed with the foot and projects over the base plate where it overlies the flange. A threaded screw extends through an opening in the cantilevered clamp and into an underlying threaded opening within the base plate. By tightening the threaded screw, the cantilevered member is urged down into engagement with the flange of the electrical component. It is appreciated that the electrical component could include a number of flanges and in such a case, there would be provided a like number of cantilevered clamps for engaging the flanges. In addition, in other embodiments, the cantilevered clamp may simply be positioned such that it engages a top portion or some other portion of the electrical component.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective and an exploded view showing a pair of cantilevered clamps securing an electrical component to a base plate.
Figure 2 is a longitudinal sectional view illustrating the cantilevered clamps securing the electrical component to the base plate.
Figure 3 is a top plan view illustrating the cantilevered clamps securing the electrical component to the base plate.
DETAILED DESCRIPTION OF THE INVENTION
With further reference to the drawings, the present invention entails an electrical component, indicated generally by the numeral 10, that is disposed on a base plate or support 30 and secured thereon by a pair of cantilevered clamps indicated generally by the numeral 50. As will be appreciated from subsequent portions of this disclosure, the cantilevered clamps 50 act to clamp and secure the electrical component 10 to the base plate 30 and at the same time, the cantilevered clamps assist in dissipating heat from the electrical component 10.
The electrical component 10 may be in the form of various electrical devices. In the way of examples, the electrical component 10 may be an RF transistor, an amplifier, various semi-conductor devices, or other types of electrical components that generate heat that require efficient heat dissipation in order for the electrical component to perform efficiently.
As illustrated in figures 1-3, the electrical component 10 includes a housing having a top 12, a pair of opposed sides 14, a pair of opposed ends 16 and two flanges 18 that project outwardly from the device. Flanges 18 include screw cutouts. However, it should be understood that the respective flanges 18 may very well be continuous and without such screw cutouts.
For supporting the electrical component 10, there is provided a base plate or support indicated generally by the numeral 30. Base plate 30 could be constructed of various materials but it is contemplated that in one embodiment the base plate 30 would be formed or constructed from a metal which would normally include good heat conductive properties and would facilitate the dissipation of heat from the electrical component 10. As seen in the drawings, the base plate 30 includes an upper surface 32 for receiving and supporting the electrical component 10 and one or more threaded openings 34 formed in the top portion of the base plate 30. In the embodiment illustrated herein, there are two threaded openings 34 that are spaced outwardly from the electrical component 10. The base plate 30 described herein is one example of a support structure, it is appreciated that other forms of supports could be used to support the electrical compound set.
To secure the electrical component 10 to the base plate 30, there is provided one or more cantilevered clamps indicated generally by the numeral 50. In the case of the present design, there is provided a pair of cantilevered clamps 50 with each clamp being adapted to be secured to the base plate 30 and to project into a clamping relationship with a respective flange 18 of the electrical component 10.
First, viewing the cantilevered clamp 50 generally, it is seen that the same includes a foot or base portion that is designed to rest on the upper surface 32 of the base plate 30. Projecting from the foot or base portion of the cantilevered clamp 50 is a cantilevered member. The cantilevered member as seen in figure 2 is spaced above the upper surface 32 of the base plate 30 and projects over and onto an adjacent flange 18. As will be discussed below, there is provided a threaded retainer that secures the cantilevered clamp to the base plate 30 and in that process the cantilevered clamp 50 clamps downwardly onto the flange 18 of the electrical component 10 so as hold and secure the same in place.
Viewing the cantilevered clamp 50 in more detail, it comprises a foot 52. Foot 52 projects downwardly and engages the upper surface 32 of the base plate 30. In addition each cantilevered clamp 50 includes a top 54 and a pair of opposed sides 56. Formed about the front of the cantilevered clamp 60 is a pair of beveled corners 58 connected by a front side 60. The corners could be round or any other shape. Additionally, the cantilevered clamp 50 includes a bottom 62 that is generally spaced above the upper surface 32 of the base plate 30. In fact, the bottom 32 tends to extend over the base plate 30 in a bridge-like fashion and the front portion of the bottom, in the embodiment illustrated herein, overlies and engages the top surface of a respective flange 18.
In order to secure the cantilevered clamp to the base plate 30, each cantilevered clamp is provided with an elongated opening 64. Extending through the opening 64 is a retainer or securing device such as a screw. As shown in the drawings, the retainer is in the form of a thumb screw having an upper gripping portion 68 and a lower threaded shaft 66. The threaded shaft 66 is designed such that it will screw into and out of the threaded opening 34 formed in the base plate 30. Because of the elongated nature of the opening 64, it follows that the cantilevered clamp 50 can be adjustably positioned on the base plate 30. This allows the cantilevered clamp to be adjusted to fit the electrical component 10 and also enables the electrical component 10 to be removed without requiring the cantilevered clamps to be removed from the base plate 30. By simply loosening the retainers and sliding the cantilevered clamps outwardly, the entire electrical component can be removed.
In the embodiment illustrated herein, the cantilevered clamps 50 engage the respective flanges 18 of the electrical component 10. However, it is not required that more than one cantilevered clamp 50 be used, and it is not required that the electrical component 10 include the flanges 18 disclosed herein. In some applications, a single cantilevered clamp could be used to engage and clamp other surfaces of the electrical component 10, such as the top surface. In any of these cases, the cantilevered clamp 50 would be serving the same basic function. That is, it would be securing the electrical component to a base plate or support structure and at the same time would function to assist in transferring and dissipating heat from the electrical component 10.
The cantilevered clamping system described above and shown in the drawings can be used in production designs as well as in testing environments. In testing cases, the cantilevered clamp can be used in bench testing to clamp RF power transistors and other devices as well as other electrical components that generate significant heat. In production applications, one or more cantilevered clamps can be used to secure RF powered transistors for example, and other electrical components to a base plate or support.
Whether used in testing applications or in production designs, there are numerous advantages of using a cantilevered clamp of the type disclosed herein. First, the cantilevered clamp saves assembly time as there is less hardware to handle and possibly misplace. In testing particularly, the cantilevered clamp saves time. An electrical component undergoing testing can be simply inserted or removed from the test area by either tightening or loosening the screws and sliding the cantilevered clamp back and forth. In short, the cantilevered clamp does not have to be removed from the base plate 30 in order to insert or remove an electrical component. In performing testing, the use of the cantilevered clamp assures that the flanges of the electrical component will not be marred. Further, it is common practice to apply a thermal compound between the base plate and the flanges of the electrical component in order to increase the efficiency of heat dissipation from the electrical component. Use of screws to secure the electrical component simply results in high pressure being applied at points along the flanges. As a result, the thermal compound is not uniformly spread and distributed. The cantilevered clamp on the other hand applies a generally uniform pressure along the flange and in doing so uniformly distributes the thermal compound between the flange and the base plate. This, in itself, increases the efficiency of heat transfer between the electrical component and the base plate. Further, the use of screws to secure the electrical component in place has sometimes resulted in the twisting of the electrical component and this has in turn resulted in cracked soldered joints. The use of the cantilevered clamp of the present invention eliminates this twisting. By using the cantilevered clamp of the present invention the electrical component can now be safely soldered in place at the same time as other components are secured in place.
Finally, the use of the cantilevered clamp of the present invention provides for increased heat transfer from the electrical component. This, of course, improves the performance of the electrical component including its thermal dynamics and RF characteristics.
The present invention may, of course, be carried out in other specific ways than those herein set forth without departing from the spirit and the essential characteristics of the invention. The present embodiments are therefore to be construed in all aspects as illustrative and not restrictive and all changes coming within the meaning and equivalency range of the appended claims are intended to be embraced therein.

Claims

1. A support and clamping assembly for securing an electrical component to an underlying support, comprising: a. a support having at least one threaded openings formed therein; b. an electrical component disposed on the support; c. a cantilevered clamp secured to the support and projecting into clamping contact with the electrical component so as to secure the electrical component to the support, the cantilevered clamp including: i. a foot for engaging the support; ii. a cantilevered member integral with the foot and projecting therefrom for engagement with the electrical component; iii. an opening formed through the cantilevered member and generally aligned with the threaded opening formed in the support; and; d. a threaded retainer for extending downwardly through the opening within the cantilevered member and threading into the threaded opening within the support for clamping the cantilevered clamp against the electrical component.
2. The support and clamping assembly of claim 1 wherein the cantilevered member is spaced upwardly from the support and extends in a bridge like fashion between the foot and the electrical component.
3. The support and clamping assembly of claim 2 wherein the electrical component includes an outer flange that rests adjacent the support and wherein the cantilevered member includes an end portion that overlies and engages the flange.
4. The support and clamping assembly of claim 3 wherein the end portion of the cantilevered member includes a pair of spaced apart corners and a front side that extends between the two beveled corners
5. The support and clamping assembly of claim 1 wherein the opening formed within the cantilevered member is elongated so as to permit the cantilevered clamp to be adjustably secured on the support.
6. The support and clamping assembly of claim 1 wherein the electrical component is a semi-conductor.
7. The support and clamping assembly of claim 1 wherein the electrical component includes a pair of outwardly extending flanges and wherein one cantilevered clamp is disposed on each side of the electrical component and projects inwardly towards the electrical component for engaging and clamping a respective flange.
8. The support and clamping assembly of claim 1 wherein the electrical component includes at least one flange that underlies the cantilevered clamp and wherein heat from the electrical component is dissipated through the flange and cantilevered clamp.
9. A cantilevered clamp for securing an electrical component to a base plate, comprising: a base plate; an electrical component disposed on the base plate; and a cantilevered clamp secured to the base plate and projecting into clamping engagement with the electrical component, the cantilevered clamp including a base portion for resting on the base plate and a raised clamping portion that projects from the base portion and into engagement with the electrical component.
10. The cantilevered clamp and support for the electrical component of claim 9 wherein the raised portion of the cantilevered clamp is spaced above the base plate and extends from the base portion of the cantilevered clamp to where it engages the electrical component.
11. The cantilevered clamp for securing an electrical component to a base plate of claim 9 wherein the cantilevered clamp includes an opening formed therein and wherein there is provided a retainer that extends through the opening and secures the cantilevered clamp to the base plate.
12. The cantilevered clamp for securing an electrical component to a base plate of claim 11 wherein there is provided a threaded opening in the base plate and wherein the retainer includes a threaded shaft portion that enables the retainer to be screwed into the threaded opening within the base plate.
13. The cantilevered clamp for securing an electrical component to a base plate of claim 9 wherein the electrical component includes at least one outwardly extending flange and wherein the raised portion of the cantilevered clamp extends over and engages the flange so as to retain the electrical component on the base plate.
14. The cantilevered clamp for securing an electrical component on a base plate of claim 13 wherein the electrical component generates heat and wherein heat is dissipated therefrom through the flange and the cantilevered clamp.
15. An electrical component and clamping system for dissipating heat from the electrical component, comprising; a. a support; b. an electrical component having a pair of outwardly extending flanges disposed on the support; c. a pair of cantilevered clamps mounted on opposed sides of the electrical component for clamping the electrical component to the support and for dissipating heat from the electrical component; d. each cantilevered clamp including a foot for resting on the support and a cantilevered member spaced from the support and projecting from the foot over and onto a respective flange such that heat generated by the electrical component is dissipated through the flanges and cantilevered clamps; e. an opening formed in each cantilevered clamp; and f. a retainer extending through the opening in each cantilevered clamp for securing the cantilevered clamp to the support.
16. The electrical component and clamping system of claim 15 wherein the support includes a pair of spaced apart threaded openings disposed outwardly from the electrical component, and wherein the retainer includes a threaded shaft that is adapted to be secured within a respective threaded opening.
17. The electrical component and clamping system of claim 15 wherein the flanges of the electrical component rests adjacent to the support and wherein the cantilevered members project and clamp onto the flanges.
18. The electrical component and clamping system of claim 15 wherein the opening formed in each cantilevered clamp is elongated such that the cantilevered clamp can be moved and adjusted with respect to the retainer.
19. The electrical component and clamping system of claim 15 wherein the electrical component is a semi-conductor.
20. The electrical component and clamping system of claim 15 wherein the cantilevered member projects from the foot and includes a terminal end portion that is formed by a pair of beveled corners and a front side extending there between.
PCT/US2000/009020 1999-04-09 2000-04-05 Cantilevered clamp for securing electronic components to a base plate WO2000062340A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU41990/00A AU4199000A (en) 1999-04-09 2000-04-05 Cantilevered clamp for securing electronic components to a base plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28899299A 1999-04-09 1999-04-09
US09/288,992 1999-04-09

Publications (1)

Publication Number Publication Date
WO2000062340A1 true WO2000062340A1 (en) 2000-10-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
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AU (1) AU4199000A (en)
WO (1) WO2000062340A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108566169A (en) * 2018-06-13 2018-09-21 刁川川 A kind of radio-frequency power amplifier that supporting multimode multi-frequency, assemble method, chip and communication terminal
WO2019137806A1 (en) * 2018-01-12 2019-07-18 Fachhochschule Kiel Fastening unit for connecting thermally stressed components to each other
CN111801559A (en) * 2018-04-09 2020-10-20 日本电产科宝电子株式会社 Fixing device of strain sensor and torque sensor using same
CN114364941A (en) * 2019-10-09 2022-04-15 日本电产科宝电子株式会社 Fixing device of strain sensor and torque sensor using same

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019137806A1 (en) * 2018-01-12 2019-07-18 Fachhochschule Kiel Fastening unit for connecting thermally stressed components to each other
CN112074947A (en) * 2018-01-12 2020-12-11 基尔应用技术大学 Fastening device for connecting thermally stressed components
US11355417B2 (en) 2018-01-12 2022-06-07 Fachhochschule Kiel Fastening unit for connecting thermally stressed components to each other
CN111801559A (en) * 2018-04-09 2020-10-20 日本电产科宝电子株式会社 Fixing device of strain sensor and torque sensor using same
US11333564B2 (en) 2018-04-09 2022-05-17 Nidec Copal Electronics Corporation Strain sensor fixing device for a torque sensor to prevent sensor performance decrease
CN108566169A (en) * 2018-06-13 2018-09-21 刁川川 A kind of radio-frequency power amplifier that supporting multimode multi-frequency, assemble method, chip and communication terminal
CN114364941A (en) * 2019-10-09 2022-04-15 日本电产科宝电子株式会社 Fixing device of strain sensor and torque sensor using same

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