CN218647709U - Alloy resistor with high-power structure - Google Patents
Alloy resistor with high-power structure Download PDFInfo
- Publication number
- CN218647709U CN218647709U CN202222957758.7U CN202222957758U CN218647709U CN 218647709 U CN218647709 U CN 218647709U CN 202222957758 U CN202222957758 U CN 202222957758U CN 218647709 U CN218647709 U CN 218647709U
- Authority
- CN
- China
- Prior art keywords
- resistor
- electrode
- edge portion
- resistor body
- alloy
- 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 provides an alloy resistance with high-power structure, it includes: the resistor comprises a first electrode, a second electrode and a resistor body, wherein the first electrode and the second electrode are respectively positioned on two sides of the resistor body. The resistor body has a middle portion, and a first edge portion and a second edge portion respectively located on both sides of the middle portion, the first edge portion of the resistor body is connected to the first electrode, and the second edge portion of the resistor body is connected to the second electrode. The thickness of the intermediate portion is T1, the thickness of the first edge portion is T2, the thickness of the second edge portion is T3, and T1> T2= T3, and the thickness of the resistor body gradually decreases from the intermediate portion toward the first edge portion and the second edge portion on both sides. The alloy resistor with the high-power structure can reduce the heat concentration of the resistor body and enhance the heat dissipation capacity of the resistor body, thereby improving the actual power of the alloy resistor.
Description
Technical Field
The utility model relates to a resistor technical field especially relates to an alloy resistor with high-power structure.
Background
The chip resistor is also called a chip fixed resistor, is one of metal glass glaze resistors, has the characteristics of moisture resistance, high temperature resistance, small temperature coefficient and the like, can greatly save the space cost of a circuit, and enables the design to be more refined. The resistor is generally composed of three parts as shown in fig. 1, and includes electrodes 11 at both ends and a resistor 12 in the middle, wherein the resistor 12 has a flat structure. In the loading and using process of the resistor, heat can be generated in the area of the middle resistor body 12, the heat can be transferred to the electrodes 11 on the two sides, and finally the electrodes 11 conduct heat to the circuit board or the surface radiates heat to the air. The better the heat dissipation of the resistor, the higher the actual power that can be achieved.
However, since the resistor 12 of the prior art has a uniform flat structure and the resistance distribution at each position is uniform, a highest temperature point is formed at the middle position of the resistor 12, and the heat at the middle position is difficult to dissipate, thereby limiting the actual power of the resistor.
Therefore, how to design an alloy resistor with a high-power structure to reduce the heat concentration of the resistor body and enhance the heat dissipation capacity of the resistor body so as to improve the actual power of the alloy resistor is a technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the weak point among the prior art, providing an alloy resistance with high-power structure, make its heat that can reduce the resistive element concentrate, strengthen its heat-sinking capability to improve alloy resistance's actual power.
The purpose of the utility model is realized through the following technical scheme:
an alloy resistor having a high power configuration, comprising: the resistor comprises a first electrode, a second electrode and a resistor body, wherein the first electrode and the second electrode are respectively positioned on two sides of the resistor body;
the resistor body is provided with a middle part and a first edge part and a second edge part which are respectively positioned at two sides of the middle part, the first edge part of the resistor body is connected with the first electrode, and the second edge part of the resistor body is connected with the second electrode;
the thickness of the intermediate portion is T1, the thickness of the first edge portion is T2, the thickness of the second edge portion is T3, and T1> T2= T3, and the thickness of the resistor body is gradually reduced from the intermediate portion toward the first edge portion and the second edge portion on both sides.
In one embodiment, the first electrode and the second electrode have the same structure, the first electrode and the second electrode have thicknesses larger than that of the resistor body, and the first electrode, the second electrode and the resistor body form a groove together after combination.
In one embodiment, the first electrode and the second electrode are both of a copper structure.
In one embodiment, an elliptic arc structure is arranged on the resistor body, and the part of the elliptic arc structure in the middle part is in an outward convex shape; the part of the elliptic cambered surface structure at the first edge part and the second edge part is in an inwards concave shape.
In one embodiment, the elliptic arc-shaped structure is arranged on one surface of the resistor body, and the other surface of the resistor body, which is opposite to the elliptic arc-shaped structure, is a plane.
In one embodiment, the elliptic arc-shaped structure is arranged on the top surface of the resistor body.
In one embodiment, the two surfaces of the resistor body are provided with an elliptical cambered surface structure.
In one embodiment, the first edge portion is double-side welded to the first electrode, and the second edge portion is welded to the second electrode.
To sum up, the utility model discloses an alloy resistor with high-power structure can reduce the resistive element heat and concentrate under the unchangeable circumstances of size, strengthens holistic heat-sinking capability to improve alloy resistor's actual power.
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 prior art resistor;
FIG. 2 is a schematic structural diagram of an alloy resistor with a high-power structure according to the present invention;
FIG. 3 is a schematic plan view of the alloy resistor of FIG. 2 with a high power configuration;
fig. 4 is a schematic cross-sectional view of the resistor body shown in fig. 3;
fig. 5 is a comparison diagram of the improved change of the resistor body of the present invention;
FIG. 6 is a schematic diagram showing the structure of an alloy resistor having a high power structure in another embodiment.
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 illustrated in the accompanying 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.
The utility model provides an alloy resistor 100 with high-power structure, as shown in FIG. 2, it includes: the resistive element includes a first electrode 110, a second electrode 120, and a resistive element 130, wherein the first electrode 110 and the second electrode 120 are respectively located on both sides of the resistive element 130.
As shown in fig. 3 and 4, the resistor 130 includes a middle portion 131, and a first edge portion 132 and a second edge portion 133 respectively located on both sides of the middle portion 131, the first edge portion 132 of the resistor 130 is connected to the first electrode 110, and the second edge portion 133 of the resistor 130 is connected to the second electrode 120. The thickness of the middle portion 131 is T1, the thickness of the first edge portion 132 is T2, the thickness of the second edge portion 133 is T3, and T1> T2= T3, and the thickness of the resistor 130 is gradually reduced from the middle portion 131 toward the first edge portion 132 and the second edge portion 133 on both sides.
In the present embodiment, as shown in fig. 2 and fig. 3, the first electrode 110 and the second electrode 120 have the same structure, the thickness of the first electrode 110 and the thickness of the second electrode 120 are both greater than the thickness of the resistor 130, and the first electrode 110, the second electrode 120 and the resistor 130 are combined to form a groove 140. The formation of the groove 140 indicates that the bottom of the first electrode 110 and the second electrode 120 protrudes from the resistor 130. Thus, when the alloy resistor 100 is soldered to a circuit board, the resistor 130 is suspended above the circuit board, i.e., the resistor 130 is not in contact with the circuit board. Therefore, on one hand, the alloy resistor 100 is convenient for a worker to weld the alloy resistor to a circuit board, and on the other hand, the air cooling heat dissipation of the resistor body 130 is facilitated.
In the present embodiment, as shown in fig. 4, an elliptic arc structure is provided on the resistor body 130, and a part of the elliptic arc structure in the middle portion 131 is convex; the part of the elliptical arc structure at the first edge portion 132 and the second edge portion 133 is concave. It should be noted that, the convex shape and the concave shape are compared with the flat shape of the conventional resistor body, and the convex shape means that the thickness of the resistor body 130 at the middle portion 131 is larger than that of the conventional flat shape, which is equivalent to the thickness being thicker on the original basis; the concave shape means that the thickness of the first edge 132 and the second edge 133 is smaller than that of the conventional flat shape, which is equivalent to thinning based on the original shape.
In this embodiment, as shown in fig. 3, the elliptical arc structure is disposed on one surface of the resistor 130, and the other surface of the resistor 130 opposite to the elliptical arc structure is a plane. Preferably, an elliptical arc structure is provided on the top surface of the resistor 130. Thus, the surface of the resistor 130 close to the circuit board is a plane, so that the distance between the resistor 130 and the circuit board is indirectly increased, and the air cooling and heat dissipation of the resistor 130 are facilitated.
The design principle of the alloy resistor 100 of the present invention is explained below:
in order to make the reader more clearly understand the structural improvement of the alloy resistor 100 of the present invention, in fig. 5, the cross section of the conventional resistor body is compared with the cross section of the resistor body 130 of the present invention, and is distinguished by the numbers 1 and 2, respectively;
referring to fig. 1, the top surface of the resistor body 130 of the conventional alloy resistor is flush with the top surfaces of the electrodes at both sides thereof, and the cross section of the conventional resistor body 130 is rectangular (as shown by reference numeral 1 of fig. 5);
referring to fig. 3, the resistor 130 of the alloy resistor 100 of the present invention has an elliptical arc structure, and the cross section of the elliptical arc structure (as shown by the numeral 2 in fig. 5). Wherein a broken line L in the numeral symbol 2 of fig. 5 represents a reference line of the cross section of the conventional resistor body. It can be seen that the resistor body 130 of the present invention has the following features: first, the middle portion 131 of the resistor 130 protrudes outward and is higher than the dotted line L, i.e., the thickness of the middle portion 131 is increased on the original basis; second, the first and second edge portions 132 and 133 of the resistor 130 are recessed below the dotted line L, i.e., the thicknesses of the first and second edge portions 132 and 133 are reduced from the original thicknesses. Furthermore, the middle portion 131 is also required to increase in volume the same as the first and second edge portions 132 and 133 are reduced in total, i.e., the total volume of the resistor 130 before and after the change is the same.
After improving, the utility model discloses an alloy resistor 100 can strengthen resistive element 130's heat dispersion, reduces resistive element 130 the highest temperature at the during operation. The specific reasons are as follows:
when the resistor body 130 works, current passes through the resistor body 130, and the whole resistor body 130 generates heat; since the first and second edge portions 132 and 133 of the resistor 130 are connected to the first and second electrodes 110 and 120, respectively, heat generated in the first and second edge portions 132 and 133 can be transferred and dissipated more rapidly. This concentrates the heat of the conventional resistor body which generates heat uniformly in the intermediate portion. The thickness of the middle portion 131 of the resistor 130 of the present invention is increased, and the resistance value is inversely proportional to the cross-sectional area, and the heating value is proportional to the resistance value, so that the resistor 130 does not generate heat uniformly, the heating value of the middle portion 131 decreases with the increase of the thickness, and the heating values of the first edge portion 132 and the second edge portion 133 increase with the decrease of the thickness. Further, since the total volume of the resistor 130 is not changed, the total resistance value of the resistor 130 is not changed, and the package size of the resistor 130 is not changed.
Thus, the present invention provides a resistor 130, under the condition of unchanged size, the heat is not concentrated on the middle portion 131, but is dissipated more quickly through the first edge portion 132 and the second edge portion 133, so as to enhance the overall heat dissipation performance of the resistor 130, reduce the maximum temperature of the resistor 130 during operation, and further improve the actual load capacity of the alloy resistor 100.
In another embodiment, as shown in fig. 6, both surfaces of the resistor body 130 are provided with an elliptical arc structure, that is, the cross sections of the top surface and the bottom surface of the resistor body 130 are elliptical arc shapes. This design makes it possible to increase the difference between the thickness of the intermediate portion 131 of the resistor 130 and the thickness of the first and second edge portions 132 and 133, thereby further enhancing the effect of preventing heat from being concentrated in the intermediate portion 131.
In one embodiment, the first edge portion 132 is welded to the first electrode 110 on both sides, and the second edge portion 133 is welded to the second electrode 120. Since the thicknesses of the first and second edge portions 132 and 133 of the resistor 130 are not equal to the thicknesses of the first and second electrodes 110 and 120, the resistor 130 can be more firmly connected to the first and second electrodes 110 and 120 by double-sided welding. Preferably, the first electrode 110 and the second electrode 120 are both of a copper structure, and the copper structure has a good thermal conductivity, so that heat is more easily transferred from the resistor 130 to the first electrode 110 and the second electrode 120.
To sum up, the utility model discloses an alloy resistor 10 with high-power structure can reduce the heat of resistive element 130 and concentrate, strengthens holistic heat-sinking capability under the unchangeable condition of size to improve alloy resistor 100's actual power.
The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. An alloy resistor having a high power configuration, comprising: the resistor comprises a first electrode, a second electrode and a resistor body, wherein the first electrode and the second electrode are respectively positioned on two sides of the resistor body;
the resistor body is provided with a middle part and a first edge part and a second edge part which are respectively positioned at two sides of the middle part, the first edge part of the resistor body is connected with the first electrode, and the second edge part of the resistor body is connected with the second electrode;
the thickness of the intermediate portion is T1, the thickness of the first edge portion is T2, the thickness of the second edge portion is T3, and T1> T2= T3, and the thickness of the resistor body is gradually reduced from the intermediate portion toward the first edge portion and the second edge portion on both sides.
2. The alloy resistor with high power structure as claimed in claim 1, wherein the first electrode and the second electrode have the same structure, the thickness of the first electrode and the second electrode is greater than that of the resistor, and the first electrode, the second electrode and the resistor form a groove together after combination.
3. The alloy resistor with high power structure as claimed in claim 2, wherein said first electrode and said second electrode are each of a red copper structure.
4. The alloy resistor with high power structure as claimed in claim 1, wherein the resistor body is provided with an elliptical arc structure, and the elliptical arc structure is convex at the middle part; the elliptic cambered surface structures at the first edge part and the second edge part are concave.
5. The alloy resistor with the high power structure as claimed in claim 4, wherein the elliptical arc structure is disposed on one surface of the resistor body, and the other surface of the resistor body opposite to the elliptical arc structure is a plane.
6. The alloy resistor with high power structure as claimed in claim 5, wherein the elliptical arc structure is provided on the top surface of the resistor body.
7. The alloy resistor with high power structure as claimed in claim 4, wherein the resistor body is provided with elliptical cambered surface structures on both sides.
8. The alloy resistor with high power structure as claimed in claim 1, wherein the first edge portion is double-side welded to the first electrode, and the second edge portion is welded to the second electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222957758.7U CN218647709U (en) | 2022-11-04 | 2022-11-04 | Alloy resistor with high-power structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222957758.7U CN218647709U (en) | 2022-11-04 | 2022-11-04 | Alloy resistor with high-power structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218647709U true CN218647709U (en) | 2023-03-17 |
Family
ID=85496132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222957758.7U Active CN218647709U (en) | 2022-11-04 | 2022-11-04 | Alloy resistor with high-power structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218647709U (en) |
-
2022
- 2022-11-04 CN CN202222957758.7U patent/CN218647709U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6563211B2 (en) | Semiconductor device for controlling electricity | |
| US8836103B2 (en) | Semiconductor unit | |
| US6773301B1 (en) | Cell strap for combining cells into a battery | |
| JP4377099B2 (en) | Integrated heat dissipation resistor | |
| CN218647709U (en) | Alloy resistor with high-power structure | |
| JP2003188336A (en) | Semiconductor module for electric power built in thermistor | |
| EP1215690A2 (en) | Ceramic condenser module | |
| US10182470B2 (en) | Ceramic heater having enlarged windward area | |
| CN210897260U (en) | Novel packaged discrete device | |
| CN218333310U (en) | Resistor with electrode having heat radiation structure | |
| JP6673100B2 (en) | Semiconductor device | |
| JP4809984B2 (en) | Full mold type semiconductor device | |
| CN213752166U (en) | Resistor with a resistor element | |
| CN215121334U (en) | PCB and power equipment | |
| CN213583744U (en) | Low-inductance silicon carbide module | |
| CN215217299U (en) | Riveting structure of vapor chamber | |
| CN215988341U (en) | Power transformer and power with heat dissipation function | |
| CN219305304U (en) | Conductive radiator and lithium battery protection board | |
| CN220895298U (en) | Power inductor | |
| CN216014964U (en) | Chip resistor easy to radiate heat | |
| CN210137564U (en) | Radiating fin capable of radiating transversely | |
| CN216597231U (en) | Integrated inductor for computer host | |
| CN113972350B (en) | Assembled battery | |
| CN212259369U (en) | PTC heater | |
| CN220895297U (en) | Power inductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |