Alloy resistor stamping material sheet structure

Abstract

The utility model discloses an alloy resistor stamping material sheet structure which comprises a rectangular flat material sheet, the material sheet is provided with two rib edge strips, and a plurality of stamping areas are arranged in the middle of the material sheet in the length direction at intervals in an array mode. A plurality of extension ribs which are arranged and distributed in a two-column and multi-row mode are arranged in the stamping area, the extension ribs are rectangular and are used for fixing the alloy resistor, and gaps are reserved between every two adjacent upper and lower extension ribs, between every two adjacent left and right extension ribs and between the extension ribs and the rib edge strips; wherein a plurality of first stamping positioning holes are formed in one rib edge strip at intervals in an array mode, a plurality of packaging positioning kidney-shaped holes and second stamping positioning holes are formed in the other rib edge strip at intervals in an array mode, and the packaging positioning kidney-shaped holes and the second stamping positioning holes are formed in a separated mode. According to the alloy resistor stamping material sheet structure, the high yield of stamped finished products can be ensured, and the production efficiency of alloy resistors is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to alloy resistors, and particularly relates to a structure of a stamping blank for an alloy resistor. Background Art

[0002] An alloy resistor refers to a resistor that uses an alloy as the current medium, and has the characteristics of low resistance value, high precision, low temperature coefficient, resistance to impact current, high power, etc., and is widely used in precision instruments, military resistors, aerospace electronics, new energy photovoltaic resistors, automobiles, etc.

[0003] The production process of alloy resistors generally includes steps such as stamping and forming of blank, laser trimming of resistance, epoxy encapsulation, removal of encapsulation runner, surface sandblasting, character code printing, curing, granulation, etc.

[0004] At present, the production efficiency of alloy resistor blanks is low, and the number of alloy resistors that can be produced on the blank is small, resulting in low output in subsequent processes. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a structure of a stamping blank for an alloy resistor to improve production efficiency.

[0006] To achieve the above purpose, the utility model adopts the following content:

[0007] A structure of a stamping blank for an alloy resistor provided by the utility model includes a blank in a rectangular flat shape. The blank has two rib edge strips, and a plurality of stamping areas are arranged at intervals along the length direction in the middle of the blank; a plurality of extending ribs arranged in a form of two columns and multiple rows are distributed in the stamping area. The extending ribs are rectangular in shape and are used to fix the alloy resistor. There are intervals between adjacent upper and lower extending ribs, between adjacent left and right extending ribs, and between the extending ribs and the rib edge strips; a plurality of first stamping positioning holes are arranged at intervals in an array on one rib edge strip, and a plurality of encapsulation positioning waist holes and second stamping positioning holes are arranged at intervals in an array on the other rib edge strip. The encapsulation positioning waist holes and the second stamping positioning holes are separated.

[0008] According to the structure of a stamping blank for an alloy resistor provided by the utility model, the distance between the extending rib and the rib edge strip is greater than the distance between adjacent upper and lower extending ribs, and the distance between adjacent upper and lower extending ribs is greater than the distance between adjacent left and right extending ribs.

[0009] Among them, the distance between adjacent left and right extending ribs is 0.3 mm.

[0010] According to an alloy resistor stamping sheet structure provided by the present utility model, the centers of the first stamping positioning holes and the centers of the second stamping positioning holes are on the same straight line, and the center distance between the encapsulation positioning waist holes and the second stamping positioning holes is consistent with the center distance between two adjacent first stamping positioning holes.

[0011] According to an alloy resistor stamping sheet structure provided by the present utility model, the length of the extension rib is 6.5 mm and the width is 2.8 mm.

[0012] According to an alloy resistor stamping sheet structure provided by the present utility model, the length of the sheet is 210 mm, the width is 50 mm, and the thickness is 0.05 - 1 mm.

[0013] Compared with the prior art, the present utility model has the following technical effects: the structure of the present utility model is simple and reasonably designed; the first stamping positioning holes and the second stamping positioning holes designed on the sheet can facilitate the fixing of the sheet and subsequent corresponding process operations; the designed encapsulation positioning waist holes can assist the die pressing encapsulation process of the semiconductor process to seal the resistor body; the two rib side strips can ensure that the sheet does not fall apart and improve the operation efficiency; the sheet contains multiple stamping areas, and each stamping area has two columns and multiple rows of extension ribs, and each extension rib corresponds to the production of an alloy resistor, ensuring a high yield of stamping products and greatly improving the production efficiency of alloy resistors. Description of the Drawings

[0014] The following further details the specific embodiments of the present utility model in conjunction with the drawings.

[0015] Figure 1 is a schematic diagram of the alloy resistor stamping sheet structure according to an embodiment of the present utility model;

[0016] Figure 2 is about Figure 1 a partial schematic diagram of part A in

[0017] 1 - sheet, 2 - stamping area, 11 - rib side strip, 12 - first stamping positioning hole, 13 - encapsulation positioning waist hole, 14 - second stamping positioning hole, 21 - extension rib. Specific Embodiments

[0018] To more clearly illustrate the present utility model, the following further describes the present utility model in conjunction with preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not be used to limit the protection scope of the present utility model.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] Please refer to Figure 1 and Figure 2 as shown. An alloy resistor stamping sheet structure is proposed in an embodiment of the present utility model, which includes a sheet 1 in a rectangular flat shape. The length of the sheet can be designed to be 210 ± 5 mm, the width can be designed to be 50 ± 3 mm, and the thickness can be designed to be 0.05 - 1 mm. The sheet is generally made of steel material.

[0021] On both sides of the length of the sheet 1, rib edges 11 are respectively designed. By means of the rib edges 11 on both sides, it is ensured that the sheet will not fall apart after stamping operations; a number of stamping areas 2 are arranged at intervals along the length direction in the middle of the sheet 1. In this embodiment, there are a total of 14 stamping areas 2, and the stamping areas are the corresponding positions for subsequent stamping operations; there are a number of extending ribs 21 arranged in a two-column and multi-row form in the stamping area 2. In this embodiment, each stamping area 14 has two columns and eleven rows of extending ribs 21. The extending ribs 21 are in a rectangular shape. The length of the extending ribs 21 is designed to be 6.5 mm, and the width is designed to be 2.8 mm. The part where one side of the extending rib 21 is connected to the sheet 1 serves as the edge to be cut. The extending ribs 21 are used to fix the alloy resistor.

[0022] Among them, there are spaces between adjacent upper and lower extending ribs, between adjacent left and right extending ribs, and between the extending ribs and the rib edges. In actual processes, the space Ⅰ between the extending rib and the rib edge is greater than the space Ⅱ between adjacent upper and lower extending ribs, and the space Ⅱ between adjacent upper and lower extending ribs is greater than the space Ⅲ between adjacent left and right extending ribs. The advantage of designing the space Ⅰ between the outermost extending rib and the rib edge to be the largest is to facilitate subsequent stamping and cutting of a single side. Among them, the space between adjacent left and right extending ribs is 0.3 mm.

[0023] On one of the rib edge strips, a number of first stamping positioning holes 12 are arranged at intervals along its length direction. On the other rib edge strip, a number of encapsulation positioning waist holes 13 and second stamping positioning holes 14 are arranged at intervals along its length direction. The encapsulation positioning waist holes 13 and the second stamping positioning holes 14 are arranged separately, that is, the encapsulation positioning waist holes 13 and the second stamping positioning holes 14 are arranged one by one at intervals. The first stamping positioning holes and the second stamping positioning holes can facilitate the fixing of the sheet on the machine and facilitate subsequent corresponding process operations, while the encapsulation positioning waist holes can assist in the die pressing encapsulation process of the semiconductor process to seal the resistor body.

[0024] In this embodiment, the centers of the first stamping positioning holes 12 and the centers of the second stamping positioning holes 14 are on the same straight line, and the center distance between the encapsulation positioning waist holes 13 and the second stamping positioning holes 14 is the same as the center distance between two adjacent first stamping positioning holes 12. That is to say, the first stamping positioning holes, the encapsulation positioning waist holes, and the first stamping positioning holes and the second stamping positioning holes on the sheet are in a highly symmetric structure.

[0025] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. An alloy resistor stamping sheet structure, characterized in that: It comprises a rectangular flat sheet, which has two rib side strips, and a plurality of stamping areas are arranged in an array at intervals in the middle of the sheet along its length direction; the stamping area has a plurality of extension ribs arranged in two columns and multiple rows, and the extension ribs are rectangular in shape and are used to fix the alloy resistor, and there are spacings between adjacent upper and lower extension ribs, between adjacent left and right extension ribs, and between the extension ribs and the rib side strips; a plurality of first stamping positioning holes are arranged in an array at intervals on one of the rib side strips, and a plurality of packaging positioning waist holes and second stamping positioning holes are arranged in an array at intervals on the other rib side strip, and the packaging positioning waist holes and the second stamping positioning holes are arranged separately.

2. The alloy resistor stamping sheet structure according to claim 1, characterized in that: The distance between the extension rib and the rib edge strip is greater than the distance between two adjacent upper and lower extension ribs, and the distance between two adjacent upper and lower extension ribs is greater than the distance between two adjacent left and right extension ribs.

3. The alloy resistor stamping sheet structure according to claim 2, characterized in that: The spacing between two adjacent left and right extension ribs is 0.3 mm.

4. The alloy resistor stamping sheet structure according to claim 1, characterized in that: The center of the first punching positioning hole and the center of the second punching positioning hole are on the same straight line, and the center distance between the packaging positioning waist hole and the second punching positioning hole is consistent with the center distance between two adjacent first punching positioning holes.

5. The alloy resistor stamping sheet structure according to claim 1, characterized in that: The length of the extension rib is 6.5 mm and the width is 2.8 mm.

6. The alloy resistor stamping sheet structure according to claim 1, characterized in that: The material sheet has a length of 210 mm, a width of 50 mm, and a thickness of 0.05 to 1 mm.

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