High-precision low-resistance alloy resistor structure
By adopting an alloy resistor structure with an even number of blades, the measurement error caused by changes in the current path is solved, achieving stability and accuracy of high-precision, low-resistance alloy resistors and optimizing the product design structure.
Patent Information
- Application Number
- CN202420723566.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-10
AI Technical Summary
Existing alloy resistor low-resistance products have a fixed current flow due to the odd number of knife edges during measurement. When the position is reversed, the measurement position deviation is large, resulting in increased measurement error and inaccurate measurement.
The design employs an even-numbered blade shape, which includes a combination of a resistor body, a guide groove for avoiding obstruction, an outer repair port, an inner repair port, and a test socket. This ensures that the current path remains unchanged, even when the resistor body is rotated 180°, and the measurement position remains stable.
It improves the accuracy and stability of alloy resistors, reduces measurement errors, and meets high-precision requirements without increasing costs.
Smart Images
Figure CN222319879U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of alloy resistors, in particular to a high-precision and low-resistance alloy resistor structure. Background Art
[0002] The internal structure design of existing alloy resistors with low resistance generally uses a three-blade design. However, during the measurement of finished products with a resistance value below 5 milliohms, the current direction is fixed because the blades are odd-numbered. If the position of the material is turned 180°, the measurement position will deviate, thereby increasing the measurement error and causing inaccurate measurement. Utility Model Content
[0003] In order to solve the above technical problems, a technical solution adopted by the utility model is:
[0004] Provided is a high-precision low-resistance alloy resistor structure, comprising: a resistor body, a first avoidance guide groove, a second avoidance guide groove, a detection jack, a first external resistance repair port, a second external resistance repair port, and a plurality of pairs of internal resistance repair port groups.
[0005] The first avoidance guide groove and the second avoidance guide groove are respectively arranged on both sides of the resistor body, the first external repair resistance opening and the second external repair resistance opening are respectively arranged at both ends of the resistor body, and are symmetrical about the center point of the resistor body, the detection jack is arranged on the resistor body outside the external repair resistance opening, the internal repair resistance opening group is evenly distributed on the resistor body between the first external repair resistance opening and the second external repair resistance opening, and each pair of internal repair resistance openings includes a first internal repair resistance opening and a second internal repair resistance opening that are oppositely and spaced apart.
[0006] In a preferred embodiment of the present invention, when a group of internal repair resistance openings is provided on the resistor body, the first internal repair resistance opening and the second internal repair resistance opening are symmetrical about the center point of the resistor body.
[0007] In a preferred embodiment of the present invention, the first avoidance guide groove and the second avoidance guide groove are mirror-imaged along the vertical center axis of the resistor body.
[0008] In a preferred embodiment of the present invention, the openings of the outer repair resistance opening and the inner repair resistance opening are arranged to face outwards.
[0009] In a preferred embodiment of the present invention, the outer opening of each repair opening is communicated with the avoidance guide groove.
[0010] In a preferred embodiment of the present invention, two detection jacks are respectively provided at two ends of the resistor body.
[0011] The beneficial effects of the utility model are: without increasing the cost, the product structure is optimized, the product resistance value is made more precise and has higher precision stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:
[0013] Figure 1 This is a structural schematic diagram of a preferred embodiment of a high-precision low-resistance alloy resistor structure of the utility model;
[0014] Figure 2 It is a structural schematic diagram of a preferred embodiment of a high-precision low-resistance alloy resistor structure of the utility model after being rotated 180°. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] See also Figure 1-2 , the utility model embodiment includes:
[0017] A high-precision low-resistance alloy resistor structure, namely a 1206 high-precision alloy resistor structure, comprises: a resistor body 1, a first external repair resistance opening 2, a second external repair resistance opening 3, a first internal repair resistance opening 4, a second internal repair resistance opening 5, a first avoidance guide groove 6, a second avoidance guide groove 7, and a detection jack 8.
[0018] The first avoidance guide groove and the second avoidance guide groove are respectively arranged on both sides of the resistor body, the first external repair resistance opening and the second external repair resistance opening are respectively arranged at both ends of the resistor body, and are symmetrical about the center point of the resistor body, the first internal repair resistance opening and the second internal repair resistance opening are arranged on the resistor body inside the external repair resistance opening, and are symmetrical about the center point of the resistor body, and the detection jack is arranged on the resistor body outside the external repair resistance opening.
[0019] Further preferably, the first avoidance guide groove and the second avoidance guide groove are mirror-imaged along the vertical center axis of the resistor body.
[0020] Further preferably, the outer opening of each repair opening is communicated with the avoidance guide groove.
[0021] Further preferably, two detection jacks are respectively provided at two ends of the resistor body.
[0022] By setting the resistance repair opening and the avoidance guide groove on the resistor body, not only can the resistor meet the preset resistance requirement more accurately, so that the performance of the resistor can meet the load capacity of large current for a short time, but also the cracking of the packaging layer can be prevented, the yield of the product can be improved, and it is convenient for processing and production efficiency can be improved; at the same time, compared with other high-precision alloy resistor structures, the advantage is that: according to the current direction in the actual use process of the product and the measurement position, the blade position is adjusted to an even number of blades to unify the direction of the resistor. When the resistor body is rotated horizontally by 180°, the alloy structure graphic structure on the resistor body is consistent with that before rotation, that is, the current path will not change, so that in the actual mass production measurement process of the product, even if the measurement position is not in the middle of the product electrode, the resistance measurement is still stable, which can effectively avoid the detection deviation caused by the change of the current path, improve the measured resistance accuracy, and thus improve the accuracy of the low-resistance alloy resistor.
[0023] The utility model has the beneficial effects of a high-precision low-resistance alloy resistor structure: while not increasing the cost, the product design structure is optimized, and the product resistance is made more precise and stable by setting an even number of knife shapes, so that the product has higher precision and stability, meeting customer needs.
[0024] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A high-precision low-resistance alloy resistor structure, characterized in that: include: The resistor body, the first avoidance guide groove, the second avoidance guide groove, the detection jack, the first external resistance repair port, the second external resistance repair port and a plurality of pairs of internal resistance repair port groups, The first avoidance guide groove and the second avoidance guide groove are respectively arranged on both sides of the resistor body, the first external repair resistance opening and the second external repair resistance opening are respectively arranged at both ends of the resistor body, and are symmetrical about the center point of the resistor body, the detection jack is arranged on the resistor body outside the external repair resistance opening, the internal repair resistance opening group is evenly distributed on the resistor body between the first external repair resistance opening and the second external repair resistance opening, and each pair of internal repair resistance openings includes a first internal repair resistance opening and a second internal repair resistance opening that are oppositely and spaced apart.
2. A high-precision low-resistance alloy resistor structure according to claim 1, characterized in that: When a group of internal repaired resistance openings is provided on the resistor body, the first internal repaired resistance opening and the second internal repaired resistance opening are symmetrical about the center point of the resistor body.
3. A high-precision low-resistance alloy resistor structure according to claim 1, characterized in that: The first avoidance guide groove and the second avoidance guide groove are mirror-imaged along the vertical center axis of the resistor body.
4. The high-precision low-resistance alloy resistor structure according to claim 1, characterized in that: The openings of the outer repair resistance opening and the inner repair resistance opening are arranged outwards.
5. The high-precision low-resistance alloy resistor structure according to claim 1, characterized in that: The outer opening of each repair opening is connected with the avoidance guide groove.
6. The high-precision low-resistance alloy resistor structure according to claim 1, characterized in that: Two detection jacks are respectively arranged at two ends of the resistor body.