CN119147818B - Sampling resistor with axial mounting structure - Google Patents
Sampling resistor with axial mounting structure Download PDFInfo
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- CN119147818B CN119147818B CN202411631376.2A CN202411631376A CN119147818B CN 119147818 B CN119147818 B CN 119147818B CN 202411631376 A CN202411631376 A CN 202411631376A CN 119147818 B CN119147818 B CN 119147818B
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- 238000005070 sampling Methods 0.000 title claims abstract description 54
- 238000009434 installation Methods 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
- H01C1/014—Mounting; Supporting the resistor being suspended between and being supported by two supporting sections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Details Of Resistors (AREA)
Abstract
本发明公开一种具有轴向安装结构的采样电阻，其包括：第一电极、第二电极、电阻体以及定位组件，电阻体设于第一电极与第二电极之间，三者整体形成C型结构。第二电极与第一电极的结构相同。第一电极设有水平段以及弯曲段，水平段上开设有装配通孔，弯曲段与电阻体焊接。定位组件包括：第一定位柱、第二定位柱、第一螺帽、第二螺帽以及中间套筒，第一螺帽与第二螺帽分别螺纹连接于中间套筒的两端。第一定位柱滑动设于第一螺帽内，第二定位柱滑动设于第二螺帽内，第一定位柱与第二定位柱之间设有复位弹性件，第一定位柱与第二定位柱分别适配两个装配通孔。该采样电阻能够满足特殊的结构布局设计需求，同时具有较高的抗干扰能力。
The present invention discloses a sampling resistor with an axial mounting structure, which comprises: a first electrode, a second electrode, a resistor body and a positioning assembly, wherein the resistor body is arranged between the first electrode and the second electrode, and the three form a C-shaped structure as a whole. The second electrode has the same structure as the first electrode. The first electrode is provided with a horizontal section and a curved section, wherein an assembly through hole is provided on the horizontal section, and the curved section is welded to the resistor body. The positioning assembly comprises: a first positioning column, a second positioning column, a first nut, a second nut and an intermediate sleeve, wherein the first nut and the second nut are respectively threadedly connected to the two ends of the intermediate sleeve. The first positioning column is slidably arranged in the first nut, and the second positioning column is slidably arranged in the second nut, and a reset elastic member is arranged between the first positioning column and the second positioning column, and the first positioning column and the second positioning column are respectively adapted to two assembly through holes. The sampling resistor can meet special structural layout design requirements and has a high anti-interference ability.
Description
Technical Field
The invention relates to the technical field of sampling resistors, in particular to a sampling resistor with an axial mounting structure.
Background
Sampling resistors are a key element for measuring the current in a circuit, and by introducing a resistor in the circuit, the current to be measured is converted into a voltage signal proportional thereto. sampling resistors are widely used in various electronic devices and measuring instruments for real-time monitoring and control of current. For example, in order to keep the output voltage in a constant state, a part of the output voltage is taken as a reference, if the output is high, the input terminal automatically reduces the voltage to reduce the output, and if the output is low, the input terminal automatically increases the voltage to increase the output.
However, the conventional sampling resistor can only be horizontally installed, and occupies a large area, and in some application scenarios, the conventional sampling resistor cannot meet the special structural layout design requirements of the device. In addition, the sampling resistor mounted horizontally is easily stacked with other parts during layout and mounting, and interference is generated.
Therefore, how to design a sampling resistor with an axial installation structure, so that the size of the space occupied by installation can be reduced, the special structural layout design requirement is met, and meanwhile, the sampling resistor has higher anti-interference capability, which is a technical problem to be solved by the technicians in the field.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a sampling resistor with an axial installation structure, so that the size of the space occupied by installation can be reduced, the special structural layout design requirement is met, and meanwhile, the sampling resistor has higher anti-interference capability.
The aim of the invention is realized by the following technical scheme:
The sampling resistor with the axial mounting structure comprises a first electrode, a second electrode, a resistor body and a positioning assembly, wherein the resistor body is arranged between the first electrode and the second electrode, and the resistor body, the first electrode and the second electrode form a C-shaped structure;
The structure of the second electrode is the same as that of the first electrode, the first electrode is provided with a horizontal section and a bending section, the horizontal section is provided with an assembly through hole, and the bending section is welded with the side face of the resistor body;
The positioning assembly is detachably arranged at the opening of the C-shaped structure and comprises a first positioning column, a second positioning column, a first nut, a second nut and a middle sleeve, wherein the first nut and the second nut are respectively connected with the two ends of the middle sleeve in a threaded manner, and when the middle sleeve rotates, the first nut and the second nut are simultaneously close to or far away from the middle sleeve;
The first positioning column is arranged in the first nut in a sliding manner, the second positioning column is arranged in the second nut in a sliding manner, a reset elastic piece is arranged between the first positioning column and the second positioning column, and the first positioning column and the second positioning column are respectively matched with the two assembly through holes.
In one embodiment, the distance between the first electrode and the second electrode is H 1, and the thicknesses of the first electrode and the second electrode are H 2;
the positioning component has three states, namely a compression state, a free state and an extension state;
when in a compressed state, the first nut and the second nut are both positioned closest to the middle sleeve, the reset elastic piece is compressed, the total length of the first positioning column and the second positioning column is L 1, and L 1＜H1;
when in a free state, the reset elastic piece is free to stretch, the total length of the first positioning column and the second positioning column is L 2, and H 1＜L2＜H1+2H2;
When the first nut and the second nut are in the extending state, the first nut and the second nut are far away from the middle sleeve, the reset elastic piece is stretched, the total length of the first positioning column and the second positioning column is L 3, and L 3≥H1+2H2.
In one embodiment, the first nut comprises a main body and a blocking ring arranged on the main body, wherein an external thread is arranged on the outer wall of the main body, and an accommodating groove for accommodating the first positioning column is formed in the main body;
the structure of the second nut is similar to that of the first nut, and the accommodating groove of the second nut is used for accommodating the second positioning column.
In one embodiment, the first positioning column and the second positioning column are respectively provided with a conical surface, and the accommodating groove of the first nut and the accommodating groove of the second nut are respectively provided with a conical groove matched with the conical surface.
In one embodiment, the outer wall of the middle sleeve is provided with anti-skid patterns.
In one embodiment, the first electrode and the second electrode are made of red copper, and the first positioning column, the second positioning column, the first nut and the second nut are made of insulating materials.
In one embodiment, the first electrode and the second electrode are provided with integrally formed sampling pins.
In one embodiment, the opening of the C-shaped structure accommodates a temperature control device, the temperature control device is electrically connected with the resistor, and the temperature control device is used for monitoring the ambient temperature of the resistor in real time.
In summary, the sampling resistor with the axial installation structure can reduce the space size occupied by installation so as to meet the special structural layout design requirement, has higher anti-interference capability, and improves the accuracy of measurement data.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a sampling resistor with an axial mounting structure according to the present invention;
FIG. 2 is an exploded view of the sampling resistor of FIG. 1;
FIG. 3 is a schematic diagram of the first electrode, the second electrode and the resistor shown in FIG. 1;
FIG. 4 is an exploded view of the positioning assembly of FIG. 1;
FIG. 5 is a partial cross-sectional view of the positioning assembly shown in FIG. 1;
FIG. 6 is a schematic diagram of a sampling resistor with an axial mounting structure at the beginning of installation;
FIG. 7 is a schematic view of a sampling resistor with an axial mounting structure during installation;
FIG. 8 is a schematic diagram of a sampling resistor with an axial mounting structure after mounting;
fig. 9 is a schematic diagram of a state in which sampling resistors are mounted into a particular structural layout.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The invention provides a sampling resistor 10 with an axial mounting structure, which comprises a first electrode 100, a second electrode 200, a resistor 300 and a positioning assembly 400, wherein the resistor 300 is arranged between the first electrode 100 and the second electrode 200, as shown in fig. 1 and 2. The resistor 300, the first electrode 100, and the second electrode 200 are integrally formed in a C-shaped structure.
The structure of the second electrode 200 is the same as that of the first electrode 100. As shown in fig. 3, the first electrode 100 is provided with a horizontal section 110 and a curved section 120, the horizontal section 110 is provided with an assembly through hole 111, and the curved section 120 is welded to a side surface of the resistor 300.
The positioning assembly 400 is detachably arranged at the opening of the C-shaped structure. As shown in fig. 4 and 5, the positioning assembly 400 includes a first positioning post 410, a second positioning post 420, a first nut 430, a second nut 440, and an intermediate sleeve 450, wherein the first nut 430 and the second nut 440 are respectively screwed to two ends of the intermediate sleeve 450. As the middle sleeve 450 rotates, the first nut 430 and the second nut 440 will simultaneously move closer to or farther from the middle sleeve 450.
The first positioning column 410 is slidably disposed in the first nut 430, the second positioning column 420 is slidably disposed in the second nut 440, a reset elastic member 460 is disposed between the first positioning column 410 and the second positioning column 420, and the first positioning column 410 and the second positioning column 420 are respectively adapted to the two assembly through holes 111. That is, when the positioning assembly 400 is mounted at the opening of the C-shaped structure, the first positioning post 410 and the second positioning post 420 are inserted into the assembly through hole 111 of the first electrode 100 and the assembly through hole 111 of the second electrode 200, respectively.
As shown in fig. 6, the distance between the first electrode 100 and the second electrode 200 is H 1, and the thicknesses of the first electrode 100 and the second electrode 200 are H 2.
In operation, the positioning assembly 400 can be divided into three states, namely a compressed state, a free state and an extended state, according to the change of the matching relationship;
When in the compressed state, the first nut 430 and the second nut 440 are both positioned closest to the middle sleeve 450, the reset elastic member 460 is compressed, the total length of the first positioning column 410 and the second positioning column 420 is L 1, and L 1＜H1 (i.e., the overall size of the positioning assembly 400 is smaller than the size of the opening of the C-shaped structure, and the positioning assembly 400 can be smoothly placed into or removed from the opening);
when in a free state (as shown in fig. 7), the reset elastic member 460 is freely stretched, the total length of the first positioning column 410 and the second positioning column 420 is L 2, and H 1＜L2＜H1+2H2 (i.e. the positioning assembly 400 is clamped at the opening of the C-shaped structure and cannot be separated);
When in the extended state (as shown in fig. 8), the first nut 430 and the second nut 440 are away from the middle sleeve 450, the reset elastic member 460 is stretched, and the total length of the first positioning post 410 and the second positioning post 420 is L 3 and L 3≥H1+2H2. At this time, the ends of the first and second positioning posts 410 and 420 protrude out of the assembly through hole 111 to be clamped with an external fixing structure.
In this embodiment, to improve the conductivity, the first electrode 100 and the second electrode 200 are made of red copper. The first positioning post 410, the second positioning post 420, the first nut 430 and the second nut 440 are made of insulating materials, so that the first electrode 100 and the second electrode 200 can be prevented from being electrically connected.
In this embodiment, as shown in fig. 4, the first nut 430 includes a main body 431 and a blocking ring 432 disposed on the main body 431, an external thread 433 is disposed on an outer wall of the main body 431, and a receiving groove 434 for receiving the first positioning column 410 is formed on the main body 431. The second nut 440 has a similar structure to the first nut 430, and the receiving groove 434 of the second nut 440 is configured to receive the second positioning post 420.
The first positioning column 410 and the second positioning column 420 are respectively provided with a conical surface 411 (as shown in fig. 4), and the accommodating groove 434 of the first nut 430 and the accommodating groove 434 of the second nut 440 are respectively provided with a conical groove 435 (as shown in fig. 7) which is matched with the conical surface 411. The cone slot 435 and the cone 411 cooperate to support, i.e. when the cone 411 is blocked by the cone slot 435, the first positioning column 410 and the second positioning column 420 can only move away from the cone slot 435. In combination with the above, when the first nut 430 and the second nut 440 are in the extended state, the first nut 430 and the second nut 440 can push the first positioning post 410 and the second positioning post 420 to separate the first positioning post 410 and the second positioning post 420 from each other by the cooperation of the tapered slot 435 and the tapered surface 411.
In operation, as shown in fig. 8, two external conductive wires 20 (such as current copper wires) are electrically connected to the first electrode 100 and the second electrode 200, respectively, and current is emitted from one of the external conductive wires 20, passes through the first electrode 100, the resistor 300 and the second electrode 200 in sequence, and finally returns to the other external conductive wire 20. The first electrode 100, the second electrode 200, and the resistor 300 are integrally formed in a C-shaped structure so that the C-shaped structure can be installed into a specific structural layout. In operation, the positioning assembly 400 is disposed at the opening of the C-shaped structure, the first positioning post 410 is inserted into the assembly through hole 111 of the first electrode 100, the second positioning post 420 is inserted into the assembly through hole 111 of the second electrode 200, the first nut 430 presses the end of one external conductive wire 20 against the first electrode 100, and the second nut 440 presses the end of the other external conductive wire 20 against the second electrode 200, so that the external conductive wire 20 is ensured to stably contact the first electrode 100 and the second electrode 200, thereby ensuring good electrical conductivity.
The following describes the installation principle and steps of the sampling resistor 10 of the present invention:
initially, the first electrode 100, the second electrode 200, and the resistor 300 integrally form a C-shaped structure, and the positioning assembly 400 is not yet assembled into the C-shaped structure (as shown in fig. 6), and the positioning assembly 400 needs to be adjusted to a compressed state to be assembled into the C-shaped structure. Specifically, the middle sleeve 450 is first rotated such that the first and second nuts 430 and 440 are both moved toward the center (toward each other) until the distance therebetween is minimized, and then the first and second positioning posts 410 and 420 are pressed such that the reset elastic member 460 is compressed, and the total length of the first and second positioning posts 410 and 420 is changed to L 1. Thus, the positioning assembly 400 is adjusted to a compressed state, and can be smoothly plugged into the opening of the C-shaped structure;
When the positioning assembly 400 is plugged into the C-shaped structure, the positioning assembly 400 is no longer pressurized, the reset elastic member 460 is freely stretched, and the first positioning post 410 and the second positioning post 420 are far away from each other until the total length of the two is changed to L 2. At this time, the first positioning column 410 is partially inserted into the assembly through hole 111 of the first electrode 100, the second positioning column 420 is partially inserted into the assembly through hole 111 of the second electrode 200, both ends of the positioning assembly 400 are clamped and cannot be separated from the C-shaped structure, and the sampling resistor 10 is in a free state (as shown in fig. 7);
Then, the worker places the sampling resistor 10 (C-shaped structure and positioning assembly 400) in a specified special layout slot (as shown in fig. 9), and then attaches the two external conductive wires 20 to the first electrode 100 and the second electrode 200, respectively. Next, the middle sleeve 450 is rotated such that the first nut 430 and the second nut 440 are both away from the center, which respectively press the outer conductive wire 20 toward both ends. That is, the first screw cap 430 presses one of the external conductive wires 20 against the first electrode 100, and the second screw cap 440 presses the other external conductive wire 20 against the second electrode 200. In this process, the first nut 430 pushes the first positioning post 410 to move, the second nut 440 pushes the second positioning post 420 to move, the reset elastic member 460 is stretched, and the sampling resistor 10 is changed to an extended state (as shown in fig. 8). In the extended state, the ends of the first positioning column 410 and the second positioning column 420 both protrude out of the assembly through hole 111, and then are clamped with an external fixing structure (such as a groove wall or a supporting frame). Thus, the mounting of the sampling resistor 10 is completed.
It should be noted that, the conventional sampling resistor can only be installed horizontally, i.e. the first electrode 100, the second electrode 200 and the resistor 300 are substantially on the same plane, which results in a large area (a wide area) occupied by the structure and cannot meet the special structural layout design requirement. In addition, as the resistor is of a plate structure, the area of the plate is wide, the space span of the main body is large, lamination with other metal devices and signal equipment is unavoidable during installation, and the resistor is more easily interfered by external electromagnetic signals, so that the sampling accuracy is affected. However, in the present invention, the first electrode 100, the second electrode 200, and the resistor 300 of the sampling resistor 10 are integrally formed in a C-shaped structure, and the first electrode 100 and the second electrode 200 are fixed in the axial direction when mounted. Compared with the prior art, the C-shaped structure of the invention has the advantages that the area occupied by the sampling resistor 10 is smaller, the sampling resistor 10 is not easy to be laminated with other metal devices and signal equipment at the occurrence position because the C-shaped structure is integrally formed, and the influence of electromagnetic signals on the C-shaped structure is much smaller than that on a plate structure even if the positions are laminated. Therefore, the design of the C-shaped structure not only reduces the space size occupied by installation and meets the design requirement of special structural layout, but also has higher anti-interference capability and improves the sampling precision.
Further, the sampling resistor 10 of the present invention is further provided with a positioning assembly 400 for fixedly mounting the sampling resistor 10 and connecting the external conductive wire 20. Specifically, during installation, the first nut 430 and the second nut 440 can be controlled to be contracted or expanded simultaneously by rotating the middle sleeve 450, and in the expanded state, the first nut 430 and the second nut 440 move together with the first positioning column 410 and the second positioning column 420, so that the end portions of the first positioning column 410 and the second positioning column 420 both protrude out of the assembly through hole 111 to be clamped with an external fixing structure. Thus, the fixing or dismounting of the sampling resistor 10 can be conveniently and quickly completed by only rotating the middle sleeve 450. Meanwhile, the connection of the outer conductive wire 20 can be also completed only by the operation of rotating the middle sleeve 450, enabling convenient operation.
It should be emphasized that after the sampling resistor 10 is mounted, the positioning assembly 400 is in an extended state, and the reset elastic member 460 is stretched, which means that the first positioning post 410 and the second positioning post 420 are always pulled and have a tendency to approach each other. Under this tension, the first nut 430 and the second nut 440 also have a tendency to approach toward the center, which causes the external threads 433 thereon to press against the threads of the middle sleeve 450, increasing the friction of the threaded engagement, thereby ensuring that the middle sleeve 450 cannot easily rotate without external force.
Preferably, the outer wall of the middle sleeve 450 is provided with anti-slip patterns (not shown) which enhance the friction coefficient of the surface of the middle sleeve 450, thereby preventing slipping during rotation. Of course, in other embodiments, the middle sleeve 450 may be configured as a polygonal prism, which may also provide a rotational anti-slip effect.
In this embodiment, the first electrode 100 and the second electrode 200 are provided with integrally formed sampling pins 101 (as shown in fig. 3). The sampling pin 101 is connected with a voltage sampling line of an external test device, when in use, current is introduced to the first electrode 100 and the second electrode 200, and then voltage acquisition sampling test is performed through the sampling pin 101, so that current detection is performed by the principle of a four-wire method, namely real-time current = voltage/resistance value.
In other embodiments, a temperature control device (not shown) is accommodated at the opening of the C-shaped structure, and the temperature control device is electrically connected to the resistor 300, and is used for monitoring the environmental temperature of the resistor 300 in real time. Furthermore, the C-shaped structure can be integrally filled in an injection molding mode without disassembly for a long time, and the temperature control device and the sampling resistor 10 are wrapped into a whole, so that the temperature control device is convenient to use.
In summary, the sampling resistor 10 with the axial installation structure of the invention can reduce the space size occupied by installation to meet the special structural layout design requirement, has higher anti-interference capability, and improves the accuracy of measurement data.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411631376.2A CN119147818B (en) | 2024-11-15 | 2024-11-15 | Sampling resistor with axial mounting structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411631376.2A CN119147818B (en) | 2024-11-15 | 2024-11-15 | Sampling resistor with axial mounting structure |
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| Publication Number | Publication Date |
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| CN119147818A CN119147818A (en) | 2024-12-17 |
| CN119147818B true CN119147818B (en) | 2025-03-07 |
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| CN202411631376.2A Active CN119147818B (en) | 2024-11-15 | 2024-11-15 | Sampling resistor with axial mounting structure |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919326A (en) * | 2013-01-16 | 2015-09-16 | 罗伯特·博世有限公司 | Measuring device with measuring resistance |
| CN210268703U (en) * | 2019-09-27 | 2020-04-07 | 温州瑞奇汽车电子有限公司 | Movable sensor fixing device |
| CN219661077U (en) * | 2023-05-25 | 2023-09-12 | 石狮鸿鹰五金制品有限公司 | Elasticity adjustable elasticity is detained |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3985441B2 (en) * | 2000-08-22 | 2007-10-03 | 松下電器産業株式会社 | Resistance element manufacturing method |
| CN205951636U (en) * | 2016-08-08 | 2017-02-15 | 石河子大学 | Flexible trailer thick stick of contraction type |
| CN208027836U (en) * | 2018-04-12 | 2018-10-30 | 深圳市业展电子有限公司 | A kind of sampling resistor and feedback circuit |
| CN217620382U (en) * | 2021-12-21 | 2022-10-21 | 上海建工（江苏）钢结构有限公司 | Node board concentricity and opening gear control tool |
| CN217669005U (en) * | 2022-07-21 | 2022-10-28 | 沈阳飞机工业（集团）有限公司 | Two-way regulation auxiliary stay frock |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104919326A (en) * | 2013-01-16 | 2015-09-16 | 罗伯特·博世有限公司 | Measuring device with measuring resistance |
| CN210268703U (en) * | 2019-09-27 | 2020-04-07 | 温州瑞奇汽车电子有限公司 | Movable sensor fixing device |
| CN219661077U (en) * | 2023-05-25 | 2023-09-12 | 石狮鸿鹰五金制品有限公司 | Elasticity adjustable elasticity is detained |
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| Publication number | Publication date |
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| CN119147818A (en) | 2024-12-17 |
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