Pin tinning device for pin type filter

Abstract

The utility model discloses a pin hot tinning device for a pin filter, wherein a plurality of pins of the pin filter are parallel to each other and pass through a plurality of corresponding through holes of a closed end of a shell, and an end of the shell opposite to the closed end is an open end. The pin hot tinning device for a pin output filter comprises a mounting seat, a hand lever and a pressing block, wherein the mounting seat is provided with a mounting seat inner cavity with an upper opening, a boss protruding upward is provided in the middle of the cavity bottom of the mounting seat inner cavity, a boss groove recessed upward is provided below the boss, a plurality of pin through holes are provided between the upper part of the boss and the boss groove, the lower end of the hand lever is connected to the upper part of the mounting seat near the edge, and the pressing block is placed in the mounting seat inner cavity and above the boss. The utility model significantly improves the quality of the hot tinning layer (including hot tinning thickness and hot tinning height), and does not attach the tin liquid to the inner wall surface of the shell, thereby improving the product quality.

Description

Technical Field

[0001] The utility model relates to an auxiliary device for processing a pin type filter, and is intended to relate to a pin tinning device for the pin type filter. Background Art

[0002] A pin filter is a filter that uses multiple pins (usually four pins, which serve as the positive and negative input terminals and the positive and negative output terminals, respectively) as input and output electrodes. Figure 1 and Figure 2 As shown, multiple (four in the figure, a conventional structure) pins 2 of the pin-type filter pass through corresponding through holes on the housing 1, and the surface of the pins 2 is generally gold-plated. The inner end of the pin 2 (i.e., the end located inside the housing 1) needs to be soldered to the filter circuit board. In order to ensure the welding stability, the inner end of the pin 2 is usually tinned before soldering, and it is required that the tin liquid should not adhere to the inner wall surface of the housing 1.

[0003] The traditional method of tinning the inner end of the pin of the pin-type filter is generally to use manual tinning with an iron, that is, to melt the solder wire with a handheld iron and attach it to the inner end of the pin. This method is difficult to ensure the quality of the tinning layer (including the thickness and height of the tinning), and it is easy for the solder to adhere to the inner wall surface of the shell, thereby reducing the product quality. Utility Model Content

[0004] The utility model aims to solve the above problems and provide a pin tinning device for a pin type filter, which has reliable tinning quality and will not attach tin liquid to the inner wall surface of the shell.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A pin tinning device for a pin-type filter, wherein a plurality of mutually parallel pins of the pin-type filter respectively pass through a plurality of corresponding through holes of a closed end of an outer shell, and the end of the outer shell opposite to the closed end is an open end. The pin tinning device for the pin-type filter comprises a mounting seat, a carrying rod and a pressing block. The mounting seat is provided with a mounting seat inner cavity with an opening on the top, a boss protruding upward and used for placing the outer shell is provided in the middle of the cavity bottom of the mounting seat inner cavity, a boss groove recessed upward is provided below the boss, a plurality of pin through holes for the pins to pass through are provided between the top of the boss and the boss groove, the lower end of the vertical carrying rod is connected to the upper part of the mounting seat near the edge, and the pressing block is placed in the mounting seat inner cavity and located above the boss.

[0007] Preferably, in order to facilitate the discharge of air in the boss groove when the pin enters the tin liquid, the top four corners of the boss are respectively provided with bumps protruding upward and used to support the shell, and the tops of the four bumps are flush.

[0008] Preferably, in order to make the entire device more compact and easier to assemble, the thickness of the cavity walls on both sides of the width direction of the rectangular mounting seat inner cavity is greater than the thickness of the cavity walls on both sides in the length direction, and screw holes are respectively provided on the cavity walls on both sides in the width direction, and the lower end of the carrying rod is provided with an external thread and is connected to one of the screw holes through the external thread.

[0009] Preferably, in order to facilitate intuitive determination of the tinning depth from the outside for accurate operation, the lower parts of the outer walls of the cavity walls on both sides of the width direction of the inner cavity of the mounting seat are thinned from the outside to the inside to form mounting seat steps, and the mounting seat steps are located below the top groove wall of the boss groove and are close to each other.

[0010] Preferably, in order to prevent the high-temperature tin liquid from conducting heat to the upper part of the carrying rod and scalding the hand, an anti-scalding handle is provided at the upper end of the carrying rod.

[0011] Preferably, in order to facilitate taking and placing the pressing block, a pressing block handle is threadedly connected to the upper portion of the pressing block.

[0012] The beneficial effects of the utility model are:

[0013] The utility model is designed with a mounting seat, a carrying rod and a pressing block that cooperate with each other. When used, the outer shell of the pin-type filter can be inverted on the boss of the mounting seat, the inner ends of multiple pins of the pin-type filter respectively pass through multiple pin through holes and are placed in the boss groove, and the pressing block is placed on the upper part of the outer shell to prevent the outer shell from entering the tin liquid due to the buoyancy of the tin liquid, and then the upper part of the carrying rod can be held to place the lower part of the mounting seat in the high-temperature tin liquid. Although the outer shell is located below the liquid surface of the tin liquid, it is blocked by the groove wall of the boss groove and will not adhere to the tin liquid. The inner ends of multiple pins are placed in the tin liquid, and the tin-plating function can be realized after a certain period of time. Since the tinning time and the tinning height are controllable, the quality of the tinning layer (including the tinning thickness and the tinning height) is significantly improved, and the tin liquid will not adhere to the inner wall surface of the outer shell, thereby improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view of the housing and pins of the pin-type filter;

[0015] Figure 2 yes Figure 1 AA section view in;

[0016] Figure 3 It is a top view of the mounting base of the pin tinning device for the pin type filter of the utility model;

[0017] Figure 4 yes Figure 3 BB section view in;

[0018] Figure 5 This is a sectional front view of the pin tinning device for the pin type filter of the utility model after assembly, wherein the sectional position of the mounting seat is Figure 4 same;

[0019] Figure 6 This is a cross-sectional front view of the pin hot tinning device for the pin filter of the utility model after the housing and the pin of the pin filter are installed, wherein the cross-sectional position of the mounting seat is Figure 4 The same, the housing and pin cross-section positions are Figure 2 same;

[0020] Figure 7 This is a sectional front view of the pin tinning device for the pin type filter of the utility model when it is used, wherein the sectional position of the mounting seat is Figure 4 The same, the housing and pin cross-section positions are Figure 2 same. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] like Figure 1 and Figure 2 As shown, the plurality of mutually parallel pins 2 of the pin-type filter of the utility model respectively pass through the plurality of corresponding through holes of the closed end of the housing 1, and the end of the housing 1 opposite to the closed end is an open end, as shown in FIG. Figure 3-Figure 7 As shown, the pin tinning device for a pin-type filter described in the utility model comprises a mounting seat 3, a carrying rod 11 and a pressing block 13. The mounting seat 3 is provided with a mounting seat inner cavity 5 with an upper opening, a boss 6 which protrudes upward and is used to place the outer shell 1 is provided in the middle of the cavity bottom of the mounting seat inner cavity 5, a boss groove 9 which is recessed upward is provided below the boss 6, a plurality of pin through holes 8 for the pins 2 to pass through are provided between the upper side of the boss 6 and the boss groove 9, the lower end of the vertical carrying rod 11 is connected to the upper part of the mounting seat 3 near the edge, and the pressing block 13 is placed in the mounting seat inner cavity 5 and is located above the boss 6.

[0023] like Figure 3-Figure 7 As shown, the utility model also discloses the following more optimized specific structures:

[0024] In order to facilitate the discharge of air in the boss groove 9 when the pin 2 is placed in the tin liquid, the four corners of the boss 6 are respectively provided with upwardly protruding bumps 7 for supporting the housing 1, and the tops of the four bumps 7 are flush.

[0025] In order to make the entire device more compact and easy to assemble, the thickness of the cavity walls on both sides of the width direction of the rectangular mounting seat inner cavity 5 is greater than the thickness of the cavity walls on both sides in the length direction, and screw holes 4 are respectively provided on the cavity walls on both sides in the width direction. The lower end of the carrying rod 11 is provided with an external thread and is connected to one of the screw holes 4 through the external thread.

[0026] In order to facilitate the intuitive determination of the hot tinning depth from the outside for accurate operation, the lower outer walls of the cavity walls on both sides of the width direction of the mounting seat inner cavity 5 are thinned from the outside to the inside to form mounting seat steps (not marked in the figure), which are located below the top groove wall of the boss groove 9 and close to each other.

[0027] In order to prevent the high-temperature tin liquid from conducting heat to the upper part of the carrying rod 11 and scalding the hand, an anti-scalding handle 10 is provided at the upper end of the carrying rod 11 .

[0028] In order to facilitate taking and placing the pressing block 13 , a pressing block handle 12 is threadedly connected to the upper portion of the pressing block 13 .

[0029] like Figure 3-Figure 7 As shown, when used, first place the housing 1 of the pin-type filter with multiple pins 2 installed on the top of the boss 6, so that the open end of the housing 1 is downward, and the inner wall of the closed end of the housing 1 contacts the top of the four bumps 7, and the inner ends of the multiple pins 2 (the lower ends in the figure) pass through the multiple pin through holes 8 from top to bottom and are placed in the boss groove 9, and the pressing block 13 is placed on the housing 1 to press it, as shown in FIG. Figure 6 As shown; then hold the anti-scalding handle 10, move the entire device to the top of the tin liquid tank 15, and then move downward until the lower part of the mounting seat 3 is placed in the high-temperature tin liquid 14 in the tin liquid tank 15. When the mounting seat step is just flush with the liquid level of the high-temperature tin liquid 14, stop moving and keep it for a certain time. During this process, the inner end of the pin 2 is placed in the high-temperature tin liquid 14, and the high-temperature tin liquid 14 will gradually adhere to the outer wall surface of the pin 2, and the shell 1 is not placed in the high-temperature tin liquid 14, and no high-temperature tin liquid 14 will adhere to the shell 1; after the preset tinning time is reached, lift the entire device upward, and then after it is quickly solidified, remove the pressing block 13, take out the shell 1, and complete the tinning operation.

[0030] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A pin tinning device for a pin filter, wherein a plurality of mutually parallel pins of the pin filter respectively pass through a plurality of corresponding through holes at a closed end of a housing and an end of the housing opposite to the closed end is an open end, characterized in that: The pin tinning device for a pin-type filter comprises a mounting seat, a carrying rod and a pressing block. The mounting seat is provided with a mounting seat inner cavity with an opening on the top, a boss protruding upward and used to place the outer shell is provided in the middle of the cavity bottom of the mounting seat inner cavity, an upwardly recessed boss groove is provided below the boss, a plurality of pin through holes for the pins to pass through are provided between the top of the boss and the boss groove, the lower end of the vertical carrying rod is connected to the upper part of the mounting seat near the edge, and the pressing block is placed in the mounting seat inner cavity and located above the boss.

2. The pin tinning device for a pin-type filter according to claim 1, characterized in that: The four corners of the upper side of the boss are respectively provided with bumps which protrude upwards and are used to support the shell, and the upper sides of the four bumps are flush.

3. The pin tinning device for a pin-type filter according to claim 1 or 2, characterized in that: The thickness of the cavity walls on both sides of the rectangular mounting seat inner cavity in the width direction is greater than the thickness of the cavity walls on both sides in the length direction, and screw holes are respectively provided on the cavity walls on both sides in the width direction. The lower end of the carrying rod is provided with an external thread and is connected to one of the screw holes through the external thread.

4. The pin tinning device for a pin-type filter according to claim 3, characterized in that: The lower parts of the outer walls of the cavity walls on both sides of the inner cavity of the mounting seat in the width direction are thinned from outside to inside to form mounting seat steps, and the mounting seat steps are located below the top groove wall of the boss groove and close to each other.

5. The pin tinning device for a pin-type filter according to claim 1 or 2, characterized in that: An anti-scalding handle is arranged at the upper end of the carrying rod.

6. The pin hot tinning device for a pin type filter according to claim 1 or 2, characterized in that: The upper part of the pressing block is connected with a pressing block handle through threads.

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