CN214381574U - Structure for welding cylindrical device and cylindrical NTC resistor - Google Patents

Structure for welding cylindrical device and cylindrical NTC resistor Download PDF

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Publication number
CN214381574U
CN214381574U CN202120400867.1U CN202120400867U CN214381574U CN 214381574 U CN214381574 U CN 214381574U CN 202120400867 U CN202120400867 U CN 202120400867U CN 214381574 U CN214381574 U CN 214381574U
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China
Prior art keywords
copper foil
welding
cylindrical
soldering tin
soldering
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CN202120400867.1U
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Chinese (zh)
Inventor
刘帅帅
张若鸿
麻长胜
王晓宝
赵善麒
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Macmic Science & Technology Holding Co ltd
Macmic Science and Technology Co Ltd
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Macmic Science & Technology Holding Co ltd
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Abstract

The utility model relates to the field of electronic technology, specifically disclose a structure for welding cylinder device, including base plate and soldering tin, wherein, be provided with the copper foil on the base plate, the copper foil of welding cylinder device pin position set to with the recess form of cylinder device looks adaptation, be provided with fixed thickness soldering tin on the recess form copper foil, the soldering tin at recess both ends is used for blocking the cylinder device, the pin contact of cylinder device soldering tin. The utility model discloses a set the copper foil of pin position to the notch form, then preset the soldering lug on the copper foil, the soldering lug melts the back unanimous with the good notch form copper foil shape of base plate predesigned, the soldering tin at notch form copper foil opening both ends can block cylinder NTC resistance after the solidification, the problem that traditional welding mode welding back cylinder NTC resistance takes place the skew easily has been solved, and then need not to design the anchor clamps that prevent cylinder NTC resistance skew, reduce staff's assembly action, practice thrift the cost.

Description

Structure for welding cylindrical device and cylindrical NTC resistor
Technical Field
The utility model relates to the field of electronic technology, concretely relates to a structure for welding cylinder device and cylinder NTC resistance.
Background
The chip temperature of the power module is an important parameter of a power electronic system, and the chip temperature during system operation cannot be directly measured, so that an NTC resistor is arranged in the power module, the chip temperature can be indirectly estimated by inquiring a relation curve between the chip temperature and the NTC resistor temperature which are measured in advance according to the numerical value of the NTC resistor, and the NTC resistor welding quality is of great importance to the power module.
Because some circuit boards need to use the similar cylinder NTC resistor, adopt traditional welding NTC resistance mode (the pad is the monoblock copper foil, puts the soldering lug earlier and places the NTC resistor on the soldering lug welding), the easy emergence skew of resistance after the welding leads to rework rate and disability rate to rise.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the cylinder device and adopt traditional welding mode to take place the skew easily, lead to the problem that rework rate and disability rate rise, provide a new structure that is used for welding the cylinder device.
The utility model adopts the technical proposal that:
a structure for welding cylindrical devices, comprising:
the copper foil is arranged on the substrate, and the copper foil at the position of the pin of the welded cylindrical device is arranged into a groove shape matched with the cylindrical device;
soldering tin, wherein the groove-shaped copper foil is provided with soldering tin with a fixed thickness, the soldering tin at two ends of an opening of the groove-shaped copper foil is used for clamping the cylindrical device, and a pin of the cylindrical device is in contact with the soldering tin.
Further, the maximum size of the opening of the groove-shaped copper foil is the diameter of the cylindrical device.
Further, the opening size of the groove-shaped copper foil is gradually reduced from the edge of the copper foil.
Further, the opening shape of the groove-shaped copper foil is set to be trapezoidal or triangular.
The utility model discloses a solve cylinder NTC resistance and adopt traditional welding mode to take place the skew easily, lead to the problem that rework rate and disability rate rise, provide a new structure that is used for welding cylinder NTC resistance.
A structure for welding a cylindrical NTC resistor comprises the structure for welding a cylindrical device, wherein the cylindrical device is configured into the cylindrical NTC resistor.
Furthermore, the groove-shaped copper foils used for welding the two pins of the cylindrical NTC resistor are arranged oppositely, and the openings of the two groove-shaped copper foils are arranged oppositely.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model provides a structure for welding cylinder NTC resistance includes the recess form copper foil of relative setting, presets the soldering lug on the recess form copper foil, because the recess form copper foil shape that the base plate designed in advance is unanimous after the soldering lug melts, the soldering tin at recess form copper foil opening both ends blocks NTC resistance after the solidification, has solved the problem that cylinder NTC resistance takes place the skew easily after traditional welding mode welding, the utility model discloses can guarantee that welding quality is reliable, reduce the rework rate and the disability rate of product;
2. the utility model discloses need not to design and prevent the anchor clamps of cylinder NTC resistance skew, reduce staff's assembly action, practice thrift the cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a groove-shaped copper foil according to an embodiment of the present invention;
fig. 2 is a schematic view of a soldering lug provided by an embodiment of the present invention;
fig. 3 is a schematic view of a solder according to an embodiment of the present invention;
fig. 4 is a top view of a structure for welding a cylindrical NTC resistor according to an embodiment of the present invention;
fig. 5 is a side view of a structure for welding a cylindrical NTC resistor according to an embodiment of the present invention.
In the figure, 1 is a substrate, 2 is a groove-shaped copper foil, 3 is an opening, 4 is a soldering lug, 5 is soldering tin, and 6 is a cylindrical NTC resistor.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
Example (b):
the embodiment provides a structure for welding a cylindrical device, as shown in fig. 1-5, including a substrate 1 and soldering tin 5, wherein, the substrate 1 is provided with a copper foil, the copper foil for welding the pin position of the cylindrical device is set to be in a groove shape matched with the cylindrical device, the groove-shaped copper foil 2 is provided with the soldering tin 5 with a fixed thickness, the soldering tin 5 at two ends of an opening 3 of the groove-shaped copper foil 2 is used for clamping the cylindrical device, and the pin of the cylindrical device contacts the soldering tin 5. This embodiment sets up the copper foil through pin position into the notch form, then preset soldering lug 4 on the copper foil, soldering lug 4 melts the back and is unanimous with the 2 shapes of the good notch form copper foil of base plate 1 predesigned, the soldering tin 5 at the 3 both ends of solidification notch form copper foil 2 opening can block NTC resistance, the problem that traditional welding mode welding back cylinder NTC resistance 6 takes place the skew easily has been solved, and then need not to design the anchor clamps that prevent cylinder NTC resistance 6 skew, reduce staff's assembly action, save the cost.
Further, as shown in fig. 1, the maximum size of the opening 3 of the notch-shaped copper foil 2 is the diameter of the cylindrical device, so that the cylindrical device can be seized by the solder 5 at both ends of the opening 3 of the notch-shaped copper foil 2.
Further, as shown in fig. 1, the size of the opening 3 of the copper foil 2 is gradually reduced from the edge of the copper foil so that the lead portion of the cylindrical device can sufficiently contact the solder 5 without causing cold joint.
Preferably, the opening 3 of the groove-shaped copper foil 2 is shaped in a trapezoid or triangle so that the cylindrical device pin can be sufficiently contacted with the solder 5.
Further, as shown in fig. 2, before the cylindrical device is welded, the soldering lug 4 is placed on the groove-shaped copper foil 2, and then heating is performed to melt the soldering lug 4 and solidify the soldering lug to form a soldering tin 5 as shown in fig. 3, wherein the shape of the soldering tin 5 is consistent with that of the groove-shaped copper foil 2, and the soldering tin has a certain thickness and can be used for clamping the cylindrical device so that the cylindrical device is not deviated.
As shown in fig. 4 to 5, the present embodiment also provides a structure for welding the cylindrical NTC resistor 6, including the above-described structure for welding the cylindrical device configured as the cylindrical NTC resistor 6.
Further, as shown in fig. 3, the two grooved copper foils 2 for welding the two pins of the cylindrical NTC resistor 6 are arranged oppositely, and the openings 3 of the two grooved copper foils 2 are arranged oppositely.
In conclusion, the structure for welding the cylindrical device provided by the embodiment can ensure that the device does not deviate in the welding process, thereby reducing the rework rate and the rejection rate of products, and meanwhile, the device does not deviate by means of a clamp in the welding process, thereby saving the labor assembly cost.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. A structure for welding cylindrical devices, comprising:
the copper foil welding structure comprises a substrate (1), wherein a copper foil is arranged on the substrate (1), and the copper foil at the position of a pin of a welded cylindrical device is arranged into a groove shape matched with the cylindrical device;
soldering tin (5), be provided with on recess form copper foil (2) and decide thickness soldering tin (5), opening (3) both ends soldering tin (5) of recess form copper foil (2) are used for blocking the cylinder device, the pin contact of cylinder device soldering tin (5).
2. The structure for soldering a cylindrical device according to claim 1, wherein the maximum size of the opening (3) of the groove-like copper foil (2) is the diameter of the cylindrical device.
3. The structure for soldering a cylindrical device according to claim 1, wherein the size of the opening (3) of the groove-like copper foil (2) is gradually reduced from the edge of the copper foil.
4. The structure for soldering a cylindrical device according to claim 1, wherein the opening (3) of the groove-like copper foil (2) is shaped in a trapezoid or a triangle.
5. A structure for welding a cylindrical NTC resistor, comprising a structure for welding a cylindrical device according to any one of claims 1 to 4, characterized in that the cylindrical device is configured as a cylindrical NTC resistor (6).
6. The structure for welding a cylindrical NTC resistor as claimed in claim 5, wherein the notch-shaped copper foils (2) for welding the two legs of the cylindrical NTC resistor (6) are oppositely arranged, and the openings (3) of the two notch-shaped copper foils (2) are oppositely arranged.
CN202120400867.1U 2021-02-23 2021-02-23 Structure for welding cylindrical device and cylindrical NTC resistor Active CN214381574U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120400867.1U CN214381574U (en) 2021-02-23 2021-02-23 Structure for welding cylindrical device and cylindrical NTC resistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120400867.1U CN214381574U (en) 2021-02-23 2021-02-23 Structure for welding cylindrical device and cylindrical NTC resistor

Publications (1)

Publication Number Publication Date
CN214381574U true CN214381574U (en) 2021-10-08

Family

ID=77967407

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120400867.1U Active CN214381574U (en) 2021-02-23 2021-02-23 Structure for welding cylindrical device and cylindrical NTC resistor

Country Status (1)

Country Link
CN (1) CN214381574U (en)

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