A fixed carrier for laser welding of NTC components

Abstract

A fixed carrier for laser welding of NTC components, belonging to the technical field of magnetic carriers, comprises a welding carrier body having a first upper surface and a first lower surface, and a welding carrier bottom plate having a second upper surface and a second lower surface, wherein magnetic components are arranged on the first upper surface and the second lower surface, and the welding carrier body and the welding carrier bottom plate are connected to each other through the magnetic components, and an NTC component having a long pin and a short pin is clamped between the first lower surface and the second upper surface; the first lower surface is provided with an interlocking groove for interlocking the NTC component, and the interlocking groove extends from the front end of the welding carrier body, and the end has a first path and a second path; the first path cooperates with the long pin, and the second path cooperates with the short pin, and a support portion is arranged in the second path to act on the short pin, so that the first welding point on the short pin and the second welding point on the long pin are in the same plane after the welding carrier body and the welding carrier bottom plate are clamped. Through the above technical solution, both PIN pins of the standardized NTC component can contact the FPC, thereby improving the yield rate during welding.

Description

Technical Field

[0001] The present application belongs to the technical field of magnetic carriers, and in particular relates to a fixed carrier for laser welding of NTC components. Background Art

[0002] The standardized NTC component has two PIN pins, which need to be fixed on the FPC flexible circuit board by laser welding to form a closed circuit. During laser welding, a carrier is required to fix the NTC component to keep it in the set welding position. In the actual production process, it is found that the two PIN pins of the NTC component are not on the same horizontal plane when the NTC component laser welding carrier designed at this stage is used. Figures 1 to 4 As shown, this structure will cause one PIN foot not to contact the FPC, which may easily cause poor welding.

[0003] In the new FPC welding combination carrier with the publication number CN216600305U of the prior art, it is used for pressing between the first product, the FPC and the second product, including: a jig, having a first product slot for placing the first product, an FPC slot for placing the FPC and a second product slot for placing the second product; a first steel sheet, having a first protrusion for pressing the first product; a second steel sheet, having a second protrusion for pressing the FPC; a first top cover, having a first pressing component and a pressure strip groove for pressing the welding point between the first product and the FPC; a pressure strip, arranged in the pressure strip groove, and provided with a second pressing component for pressing the welding point between the second product and the FPC; and a second top cover, having a positioning groove for applying pressure to the second pressing component.

[0004] In the prior art, the first protrusion on the first steel sheet and the second protrusion on the second steel sheet are both for quickly positioning and pressing the FPC. This pressing tool in the prior art is suitable for the technology of overall welding of FPC, which has high requirements on arrangement and complicated welding steps, and is even less suitable for fixing the standardized NTC components of the present application. Utility Model Content

[0005] The purpose of the utility model is to solve the existing problems and improve the welding yield. The applicant designs a new laser welding carrier so that both PIN pins of the standardized NTC component can contact the FPC during welding.

[0006] In order to achieve the above technical objectives, the following technical solutions are provided: a fixed carrier for laser welding of NTC components, comprising a welding carrier body having a first upper surface and a first lower surface and a welding carrier base plate having a second upper surface and a second lower surface, magnetic components are arranged on the first upper surface and the second lower surface, and the welding carrier body and the welding carrier base plate are connected to each other through the magnetic components, and an NTC component having a long pin and a short pin is clamped between the first lower surface and the second upper surface; the first lower surface is provided with an engaging groove for engaging the NTC component, and the engaging groove extends from the front end of the welding carrier body, and the front end has a first path and a second path; the first path cooperates with the long pin, and the second path cooperates with the short pin, and a support portion is arranged in the second path to act on the short pin, so that the first welding point on the short pin and the second welding point on the long pin are in the same plane after the welding carrier body and the welding carrier base plate are clamped.

[0007] The working method of the structure is as follows: the modular standardized NTC components are placed in the fitting groove, the long pins and the short pins extend out of the welding carrier body and are in the first path and the second path, and then the welding carrier bottom plate is covered, and the welding carrier body and the welding carrier bottom plate are calibrated through the preset magnetic components. The assembled modular standardized NTC components are then transported to the welding process workshop, and the operator can select the required fixed carrier to snap on the carrier with the FPC fixed in the preset welding position, where the welding carrier bottom plate is in contact with the carrier, and then laser welding is performed.

[0008] In an practicable manner, the welding carrier body further has left and right surfaces located on both sides of the front end of the NTC component, and holes are provided on the left and right surfaces to facilitate the positioning of the welding carrier body.

[0009] In an operative manner, at least two first holes and grooves for placing magnetic blocks are provided on the first upper surface as the male part of the magnetic component, and the first upper surface and the first lower surface are connected at the front end by a bevel, and the bevel includes a long bevel for facilitating welding of long pins, and a short bevel for facilitating welding of short pins.

[0010] In an practicable manner, the NTC component includes a sampling portion, a conducting portion connected to the sampling portion, and an end of the conducting portion has a long pin and a short pin; the sampling portion and the conducting portion are embedded in the fitting groove.

[0011] In an practicable manner, a bottom plate of the welding carrier is provided with an empty groove for accommodating a sampling part; the second upper surface is in contact with the conductive part, and the front end of the second upper surface is in contact with the long pin and the short pin; the first upper surface and the second lower surface are connected at the front end; and at least two second empty grooves for placing magnetic blocks are provided on the second lower surface as the mother part of the magnetic component.

[0012] In an practicable manner, the front end of the second upper surface has a long extension portion that cooperates with the long slope and covers the first path; it also has a short extension portion that cooperates with the short slope and covers the second path; there is a distance between the support portion and the short extension portion.

[0013] In an practicable manner, the projection of the support portion on the first lower surface is a rectangle, the rear side of which is an inclined surface, which gradually inclines from the second path to the front end, so that the support portion gradually becomes thicker.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] During laser welding, the two PIN pins of the NTC component can contact the FPC by using the fixed carrier in the technical solution, which improves the welding yield rate. Compared with the reference document, the use of the above materials reduces the weight of the entire component, improves the overall stability of welding, and also improves the welding yield rate.

[0016] The carrier is also used for welding NTC components on some large FPCs, because large FPCs have some NTC components inside, and these NTC components are difficult to position during welding, and it is more likely that the above-mentioned PIN pins cannot contact the FPC. Therefore, the NTC components are pressed tightly against the FPC through the carrier to achieve good contact between the pin pins and the FPC, which is convenient for laser welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 1 welding carrier body, 1a first upper surface, 1b first lower surface, 1A hole groove, 11 first path, 12 second path, 14 fitting groove, 16 long inclined surface, 17 short inclined surface,

[0018] 2 welding carrier bottom plate, 2a second upper surface, 2b second lower surface, 21 empty slot, 3 magnetic component, 32 second empty slot,

[0019] 4NTC component, 41 long pin, 42 short pin, 43 sampling part, 44 conducting part, 5 supporting part;

[0020] Figure 1 It is a schematic diagram of the overall structure in the prior art;

[0021] Figure 2 It is a side view schematic diagram in the prior art;

[0022] Figure 3 Schematic diagram of placing NTC components for welding carrier body;

[0023] Figure 4 It is a structural schematic diagram of the welding carrier body;

[0024] Figure 5 It is a schematic diagram of the overall structure of the embodiment;

[0025] Figure 6 is a side view schematic diagram of an embodiment;

[0026] Figure 7 A schematic diagram of an NTC component of an embodiment being placed on a welding carrier body;

[0027] Figure 8 A schematic structural diagram of a welding carrier body according to an embodiment;

[0028] Fig. 9 It is a structural schematic diagram of a welding carrier bottom plate of an embodiment; DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] like Figure 5 and Figure 6 In the embodiment shown, a fixed carrier for laser welding of NTC components comprises a welding carrier body 1 having a first upper surface 1a and a first lower surface 1b and a welding carrier bottom plate 2 having a second upper surface 2a and a second lower surface 2b. A magnetic component 3 is provided on the first upper surface 1a and the second lower surface 2b. The welding carrier body 1 and the welding carrier bottom plate 2 are connected to each other through the magnetic component 3. An NTC having a long pin 41 and a short pin 42 is clamped between the first lower surface 1b and the second upper surface 2a. TC component 4; the first lower surface 1b is provided with an embedding groove 14 for embedding the NTC component 4, the embedding groove 14 extends from the front end of the welding carrier body 1, and the front end has a first path 11 and a second path 12; the first path 11 cooperates with the long pin 41, and the second path cooperates with the short pin 42, and a support portion 5 is provided in the second path 12 to act on the short pin 42, so that the first welding point on the short pin 42 and the second welding point on the long pin 41 are in the same plane after the welding carrier body 1 is engaged with the welding carrier bottom plate 2. Among them, the projection of the support portion 5 on the first lower surface 1b is a rectangle, and its rear side surface is an inclined surface, which gradually tilts from the second path 12 to the front end, so that the support portion 5 gradually thickens.

[0031] The welding carrier body 1 also has left and right surfaces located at both sides of the front end of the NTC component 4, and the left and right surfaces are provided with hole grooves 1A for facilitating the positioning of the welding carrier body 1.

[0032] In this embodiment, the NTC component 4 includes a sampling portion 43 and a conducting portion 44 connected to the sampling portion 43 , wherein the end of the conducting portion 44 has a long pin 41 and a short pin 42 ; the sampling portion 43 and the conducting portion 44 are embedded in the fitting groove 14 .

[0033] like Figure 7 and Figure 8 In this embodiment, at least two first holes for placing magnetic blocks are provided on the first upper surface 1a of the welding carrier body 1 as the male part of the magnetic component 3, and the first upper surface 1a and the first lower surface 1b are connected at the left end by an inclined surface. The inclined surface includes a long inclined surface 16 for facilitating the welding of the long pin 41, and a short inclined surface 17 for facilitating the welding of the short pin 42.

[0034] like Fig. 9 As shown in this embodiment, the welding carrier bottom plate 2 has an empty slot 21 for accommodating the sampling part 43, and the empty slot 21 is located at the rear end of the welding carrier bottom plate 2. The second upper surface 2a contacts the conductive part 44, and the front end of the second upper surface 2a contacts the long pin 41 and the short pin 42; the first upper surface 1a is connected to the second lower surface 2b at the front end; the second lower surface 2b is provided with at least two second empty slots 32 for placing magnetic blocks as the female part of the magnetic component 3. The male part and the female part mentioned above are magnetically attracted to each other through the magnetic component 3 to fix the NTC component 4.

[0035] In this embodiment, after the welding carrier body 1 and the welding carrier bottom plate 2 are matched, the front end of the welding carrier bottom plate 2 and the front end of the welding carrier body 1 are in different vertical planes. The specific structure is that the front end of the second upper surface 2a has a long extension portion that matches the long inclined surface 16 and covers the first path 11; it also has a short extension portion that matches the short inclined surface 17 and covers the second path 12; there is a distance between the support portion 5 and the short extension portion.

[0036] The assembly method of this embodiment is as follows: take the NTC component 4 and the welding carrier body 1, embed the NTC component 4 into the fitting groove 14, so that the long pin 41 and the short pin 42 are exposed at the left end respectively, and then take the welding carrier base plate 2, and align the welding carrier body 1 and the welding carrier base plate 2 through the magnetic component 3, wherein a section of the first fitting surface 13 will be exposed for laser welding operation.

[0037] The above will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0038] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above-mentioned utility model, which fall within the scope of protection of the present invention.

Claims

1. A fixed carrier for laser welding of NTC components, comprising a welding carrier body (1) having a first upper surface (1a) and a first lower surface (1b) and a welding carrier bottom plate (2) having a second upper surface (2a) and a second lower surface (2b), wherein a magnetic component (3) is arranged on the first upper surface (1a) and the second lower surface (2b), and the welding carrier body (1) and the welding carrier bottom plate (2) are connected to each other through the magnetic component (3). It is characterized in that An NTC component (4) having a long pin (41) and a short pin (42) is engaged between the first lower surface (1b) and the second upper surface (2a); The first lower surface (1b) is provided with an engagement groove (14) for engaging the NTC component (4), and the engagement groove (14) extends from the front end of the welding carrier body (1). The front end has a first path (11) and a second path (12); the first path (11) cooperates with the long tube pin (41), and the second path (12) cooperates with the short tube pin (42); a support portion (5) is provided in the second path (12) to act on the short tube pin (42), so that a first welding point on the short tube pin (42) and a second welding point on the long tube pin (41) are located in the same plane after the welding carrier body (1) is engaged with the welding carrier bottom plate (2).

2. The fixed carrier for laser welding of NTC components according to claim 1, characterized in that: The welding carrier body (1) also has left and right surfaces located on both sides of the front end of the NTC component (4), and the left and right surfaces are provided with hole grooves (1A) for facilitating the positioning of the welding carrier body (1).

3. The fixed carrier for laser welding of NTC components according to claim 2, characterized in that: The first upper surface (1a) is provided with at least two first holes for placing magnetic blocks as the male part of the magnetic component (3); the first upper surface (1a) and the first lower surface (1b) are connected at the front end via an inclined surface. The inclined surface comprises a long inclined surface (16) for facilitating the welding of the long tube pin (41), and a short inclined surface (17) for facilitating the welding of the short tube pin (42).

4. The fixed carrier for laser welding of NTC components according to claim 3, characterized in that: The NTC component (4) comprises a sampling portion (43), a conducting portion (44) connected to the sampling portion (43), and an end of the conducting portion (44) having the long pin (41) and the short pin (42); the sampling portion (43) and the conducting portion (44) are embedded in the fitting groove (14).

5. The fixed carrier for laser welding of NTC components according to claim 4, characterized in that: The welding carrier bottom plate (2) has a hollow groove (21) for accommodating the sampling portion (43); The second upper surface (2a) is in contact with the conductive portion (44), and the front end of the second upper surface (2a) is in contact with the long pin (41) and the short pin (42); The first upper surface (1a) and the second lower surface (2b) are connected at the front end; the second lower surface (2b) is provided with at least two second empty grooves (32) for placing magnetic blocks as the mother part of the magnetic component (3).

6. The fixed carrier for laser welding of NTC components according to claim 5, characterized in that: The front end of the second upper surface (2a) has a long extension portion that cooperates with the long inclined surface (16) and covers the first path (11); it also has a short extension portion that cooperates with the short inclined surface (17) and covers the second path (12); there is a distance between the support portion (5) and the short extension portion.

7. The fixed carrier for laser welding of NTC components according to claim 1 or 6, characterized in that: The projection of the support portion (5) on the first lower surface (1b) is a rectangle, the rear side of which is an inclined surface, which gradually inclines from the second path (12) to the front end, so that the support portion (5) gradually increases in thickness.

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