CN218214840U - High-reliability precision cement resistor - Google Patents
High-reliability precision cement resistor Download PDFInfo
- Publication number
- CN218214840U CN218214840U CN202222670041.4U CN202222670041U CN218214840U CN 218214840 U CN218214840 U CN 218214840U CN 202222670041 U CN202222670041 U CN 202222670041U CN 218214840 U CN218214840 U CN 218214840U
- Authority
- CN
- China
- Prior art keywords
- resistor
- red copper
- shell
- reliability
- cement
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Landscapes
- Details Of Resistors (AREA)
Abstract
The utility model relates to a high reliability's accurate cement resistance, include: a resistor body and two red copper leads; the two red copper leads are respectively welded with two ends of the resistor body by electron beams to form a resistor body; the red copper lead is of a T-shaped structure, and the welding end of the red copper lead is connected with the surface of the resistor body; the high-reliability precision cement resistor further comprises a shell; the resistor body and the welding end of the red copper lead are contained in the shell, and the free end of the red copper lead extends out of the shell from the inside of the shell. The utility model discloses a precision cement resistance of high reliability, the resistive element is good with the stability of being connected of lead wire, and precision cement resistance's reliability is high.
Description
Technical Field
The utility model relates to an electron device technical field especially relates to an accurate cement resistor of high reliability.
Background
As shown in fig. 1, the existing cement resistor generally comprises: the resistor body 10, the leads 20, the shell 30 and the cement paste layer 40. The resistor 10 is usually made of nickel-chromium wire with a large temperature coefficient, and the connection between the resistor and the lead is completed by welding in a subsequent process.
The existing cement resistor has the following problems: the welding of the resistor body and the pin of the lead is a single welding process of a post process. Therefore, the conventional cement resistor is prone to have a problem that the fillet falls off (the lead is separated from the resistor), and the reliability of the cement resistor is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing the accurate cement resistance of a high reliability, the resistive element is good with the stability of being connected of lead wire, and the reliability of accurate cement resistance is high.
The purpose of the utility model is realized through the following technical scheme:
a precision cement resistor of high reliability, comprising: a resistor body and two red copper leads;
the two red copper leads are respectively welded with two ends of the resistor body by electron beams to form a resistor body; the red copper lead is of a T-shaped structure, and the welding end of the red copper lead is connected with the surface of the resistor body;
the high-reliability precision cement resistor further comprises a shell;
the resistor body and the welding end of the red copper lead are contained in the shell, and the free end of the red copper lead extends out of the shell from the inside of the shell.
In one embodiment, the high-reliability precision cement resistor further comprises a slurry layer filled in the shell; the slurry layer is filled between the inner wall of the shell and the resistor and the red copper lead in the shell.
In one embodiment, the slurry layer is a cement slurry layer.
In one embodiment, the resistor body is an iron chromium aluminum resistor body.
In one embodiment, the resistor body is a cammar alloy composite.
In one embodiment, the housing is a square structure.
In one embodiment, the housing is a seal structure.
The high-reliability precision cement resistor has good stability of connection between the resistor body and the lead, and high reliability;
the red copper lead of the utility model is of a T-shaped structure, and the welding of the resistor body and the red copper lead is surface-to-surface welding, so that the connection of the resistor body and the red copper lead is very firm, even under the condition of high temperature or vibration, the welding part of the resistor body and the red copper lead can not break and fall off, and the reliability is very high;
the utility model discloses a cement paste layer when playing fixed resistive element and red copper lead wire, still plays insulating effect, improves the reliability of accurate cement resistance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.
FIG. 1 is a schematic diagram of a cement resistor of the prior art;
fig. 2 is a schematic structural diagram of the resistor body of the present invention;
fig. 3 is a schematic connection diagram of the resistor material strip and the red copper material strip according to the present invention;
fig. 4 is a schematic structural diagram of the precision cement resistor of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The 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 "secured 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 as used herein are for illustrative purposes only and do not represent the only embodiments.
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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 2 and 4, the utility model relates to a precision cement resistor 100 of high reliability, include: a resistor 200 and two red copper leads 300. Two red copper leads 300 are respectively welded with two ends of the resistor body 200 by electron beams to form a resistor body 400; the red copper lead 300 has a T-shaped structure, and the bonding terminal 310 of the red copper lead 300 is connected to the surface of the resistor 200. The high reliability precision cement resistor 100 also includes a housing 500. The resistor 200 and the bonding terminal 310 of the red copper lead 300 are housed in the case 500, and the free end 320 of the red copper lead 300 extends from the inside of the case 500 to the outside of the case 500.
As shown in fig. 2 and 4, in the present embodiment, the high-reliability precision cement resistor 100 further includes a slurry layer 600, and the slurry layer 600 is filled in the case 500. The paste layer 600 is filled between the inner wall of the case 500 and the resistor 200 and the red copper lead 3000 in the case 500. Specifically, the slurry layer 600 is a cement slurry layer. The cement paste layer plays a role in fixing the resistor 200 and the red copper lead 300, and also plays an insulating role, thereby improving the reliability of the precision cement resistor 100.
As shown in fig. 2, in the present embodiment, the resistor 200 is an iron-chromium-aluminum resistor. In other embodiments, the resistor 200 may be a karma alloy resistor.
As shown in fig. 4, in the present embodiment, the housing 500 has a square structure. The housing 500 is a sealing structure.
The production process of the high-reliability precision cement resistor 100 of the present invention (please refer to fig. 2 to 4 together):
the resistor material belt 700 and the red copper material belt 800 are welded in an electron beam welding mode, and the electron beam welding is surface-to-surface welding; in the process, the resistor material belt 700 and the red copper material belt 800 are welded into a splicing material belt;
then, the spliced material belt is punched according to the requirement of the resistance value of the resistor, and the resistor body 400 with the required resistance value is punched;
then, the resistor body 400 is assembled in the shell 500, the free end of the red copper lead 300 extends out of the shell 500 from the inside of the shell 500, cement paste is filled in the shell 500, and a gap between the resistor body 400 and the shell 500 is fully filled without leaving a gap; thereby forming a cement resistor finished product;
it should be noted that the resistor 200 of the present invention is an iron-chromium-aluminum resistor or a carma alloy resistor; the iron-chromium-aluminum resistor body and the Kalmalloy resistor body are both low-temperature-coefficient resistor bodies; therefore, the influence of temperature change on the cement resistor 100 is small, and the stability of the cement resistor 100 is high;
in addition, when the splicing material belt is punched, the width size of the punched resistor body 400 can be adjusted according to actual needs to adjust the resistance value of the cement resistor 100, so that the precision of the cement resistor 100 is ensured, and the production and the processing are more flexible;
the resistor 200 and the red copper lead 300 are welded by an electron beam, and the welding of the resistor 200 and the red copper lead 300 is surface-to-surface welding, so that the connection between the resistor 200 and the red copper lead 300 is very firm, the welding part of the resistor 200 and the red copper lead 300 is not broken and falls off even under high temperature or vibration, and the reliability is very high;
moreover, the utility model discloses a cement resistor 100 adopts the punching press mode to form resistance body 400, and the product uniformity is very high.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (7)
1. A high-reliability precision cement resistor is characterized by comprising: a resistor body and two red copper leads;
the two red copper leads are respectively welded with two ends of the resistor body by electron beams to form a resistor body; the red copper lead is of a T-shaped structure, and the welding end of the red copper lead is connected with the surface of the resistor body;
the high-reliability precision cement resistor further comprises a shell;
the resistor body and the welding end of the red copper lead are contained in the shell, and the free end of the red copper lead extends out of the shell from the inside of the shell.
2. The high-reliability precision cement resistor as claimed in claim 1, further comprising a slurry layer filled in the housing; the slurry layer is filled between the inner wall of the shell and the resistor and the red copper lead in the shell.
3. The highly reliable precision cement resistor as claimed in claim 2, wherein said slurry layer is a cement slurry layer.
4. The precision cement resistor with high reliability as claimed in claim 2, wherein the resistor is an iron chromium aluminum resistor.
5. The precision cement resistor with high reliability as claimed in claim 2, wherein the resistor body is a cammar alloy composition.
6. The high reliability precision cement resistor as claimed in claim 2, wherein the housing is a square structure.
7. The high reliability precision cement resistor as claimed in claim 2, wherein the housing is a sealed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222670041.4U CN218214840U (en) | 2022-10-10 | 2022-10-10 | High-reliability precision cement resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222670041.4U CN218214840U (en) | 2022-10-10 | 2022-10-10 | High-reliability precision cement resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218214840U true CN218214840U (en) | 2023-01-03 |
Family
ID=84642246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222670041.4U Active CN218214840U (en) | 2022-10-10 | 2022-10-10 | High-reliability precision cement resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218214840U (en) |
-
2022
- 2022-10-10 CN CN202222670041.4U patent/CN218214840U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218214840U (en) | High-reliability precision cement resistor | |
| CN206388772U (en) | A kind of full lug drainage square battery structural member | |
| US4879804A (en) | Method of fabricating a coil | |
| JPH02303038A (en) | Wire bonding | |
| JPS6015334Y2 (en) | Electrolytic capacitor with self-holding terminal conductor | |
| US2627534A (en) | Battery with conductive cement intercell connections | |
| JPH0373510A (en) | Chip-shaped solid electrolytic capacitor | |
| CN210296589U (en) | Microwave circulator with compression joint type packaging structure | |
| CN209822404U (en) | Temperature safety resistor | |
| JPS62150814A (en) | Chip shape solid state electrolytic capacitor | |
| JPH0347329Y2 (en) | ||
| JP2570284Y2 (en) | Voice coil relay board and relay structure | |
| JPS6138238Y2 (en) | ||
| KR820000987Y1 (en) | Ear-phone | |
| JPS6214673Y2 (en) | ||
| JPH0526764Y2 (en) | ||
| JPS6350845Y2 (en) | ||
| JPS5879930U (en) | temperature fuse | |
| JP2579483B2 (en) | Signal line filter and method of manufacturing the same | |
| JPS5954119A (en) | Composite contact | |
| JPH0130288B2 (en) | ||
| JPH03288402A (en) | Manufacture of slider | |
| JPH02288257A (en) | Two-terminal type face packaging semiconductor device | |
| JPS59103342U (en) | temperature fuse | |
| JPS6369207A (en) | Inductance element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |