Double-lead-out soldering lug and direct-current variable-frequency capacitor

Abstract

The utility model discloses a double-leading-out soldering lug and a direct current frequency conversion capacitor, the double-leading-out soldering lug comprises a main part, a welding part and a leading-out part, the welding part and the leading-out part are respectively arranged at two ends of the main part, and the leading-out part is of a double-soldering-lug structure; positioning blocks are further arranged on the main part, the positioning blocks are symmetrically arranged on the two sides of the main part, the positioning blocks are matched with positioning grooves in the capacitor shell, and the positioning blocks are embedded in the positioning grooves. The welding part is in a circular ring shape, and a welding hole is formed in the welding part. And a liquid leakage hole is also formed in the lead-out part. According to the utility model, through the arrangement of the positioning block, the positioning of the double-lead-out soldering lug in the capacitor shell during the assembly of the capacitor element is facilitated, the position of the double-lead-out soldering lug is more uniform and accurate, and convenience is provided for the subsequent use and installation of the capacitor. And meanwhile, the double lead-out soldering lugs are stably installed, so that the anti-vibration capability of the capacitor can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to capacitor technical field, especially related to double lead -out soldering pad and direct current frequency conversion capacitor. BACKGROUND

[0002] Direct current frequency conversion capacitor with its high ripple current, low equivalent series resistance, good self -healing performance, safety film design, more safe and reliable etc. Characteristic is applied widely in frequency converter, solar inverter etc. Field.

[0003] Traditional direct current frequency conversion capacitor adopts copper soldering pad lead -out end, this lead -out end welding is convenient, simple to use, but its general does not have positioning piece, makes its in capacitor assembly positioning difficult, and is easy to be influenced by external force, and the anti -vibration ability is poor. UTILITY MODEL CONTENTS

[0004] The utility model discloses in view of prior art's problem, and proposes following technical scheme:

[0005] The utility model provides double lead -out soldering pad, including:

[0006] Main stem part, welding part and lead -out part, the welding part and lead -out part are set up at two ends of main stem part respectively, the lead -out part is double soldering piece structure;

[0007] Positioning block is still set up on the main stem part, and the positioning block is symmetrically set up at both sides of the main stem part, the positioning block is matched with the positioning slot in the capacitor shell interior, and the positioning block is embedded in the positioning slot.

[0008] As the preferred technical scheme, the welding part is circular ring shape, and welding hole is arranged on the welding part.

[0009] As the preferred technical scheme, the positioning block includes positioning block one, and positioning block two is arranged at the end of the positioning block one away from each other.

[0010] As the preferred technical scheme, the lead -out part is also provided with a liquid leakage hole.

[0011] The utility model provides direct current frequency conversion capacitor, including:

[0012] The positioning slot is arranged on the side wall in the capacitor shell interior, and the positioning block of the double lead -out soldering pad is embedded in the positioning slot.

[0013] As the preferred technical scheme, the positioning slot includes slot one and slot two, the slot two is arranged on the side away from each other of the slot one, the slot one is matched with the positioning block one, and the slot two is matched with the positioning block two.

[0014] As the preferred technical scheme of the above, the side wall of the capacitor shell is further provided with stop blocks symmetrically arranged upward and downward, and the stop blocks are formed with insertion slots identical with the clamping slots.

[0015] The utility model discloses the beneficial effects are:

[0016] The utility model discloses the beneficial effects are: BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 shows a schematic view of the double lead-out welding piece in the embodiment;

[0018] Figure 2 Fig. 1 shows a schematic view of the double lead-out welding piece in the embodiment;

[0019] Figure 3 Fig. 1 shows a schematic view of the double lead-out welding piece in the embodiment;

[0020] Figure 4 Fig. 1 shows a schematic view of the double lead-out welding piece in the embodiment; Figure 3 Fig. 1 shows a schematic view of the double lead-out welding piece in the embodiment;

[0021] Figure 5 Fig. 1 shows a schematic view of the double lead-out welding piece in the embodiment;

[0022] Reference signs: 10, capacitor shell; 101, clamping slot one; 102, clamping slot two; 103, stop block; 21, main stem; 211, welding hole; 22, welding part; 23, lead-out part; 231, liquid leakage hole; 241, positioning block one; 242, positioning block two. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model embodiment more clear, the utility model technical scheme will be described clearly and completely below in combination with the embodiment.

[0024] EMBODIMENT

[0025] As shown in Fig. 1, a schematic view of the double lead-out welding piece in the embodiment is shown. Figure 1 Figure 1 Fig. 1 shows a schematic view of the double lead-out welding piece in the embodiment;

[0026] The double lead-out welding piece comprises:

[0027] The main stem 21, the welding part 22 and the lead-out part 23, wherein the welding part 22 and the lead-out part 23 are respectively arranged at two ends of the main stem 21, and the lead-out part 23 is a double welding piece structure; ​

[0028] The main stem 21 is also provided with positioning blocks, which are symmetrically arranged on both sides of the main stem 21. The positioning blocks match the positioning grooves inside the capacitor housing 10 and are embedded in the positioning grooves.

[0029] Specifically, the welding part 22 is in the shape of a ring, and welding holes 211 are provided on the welding part 22; the double lead solder piece is fixed to the plate of the capacitor through the welding holes 211.

[0030] refer to Figure 2 , Figure 5 , Figure 2 The diagram shown is a front view of the DC inverter capacitor in the embodiment; Figure 5 The diagram shown is a side view of the DC inverter capacitor in the embodiment; the lead-out portion 23 extends out of the capacitor housing 10; a leakage hole 231 is also provided on the lead-out portion 23;

[0031] The drain hole 231 on the outlet 23 allows the filler to seep more easily during pouring. The elongated oval design of the drain hole 231 also maximizes the flow area of ​​the filler and reduces the flow resistance of the filler, thereby facilitating production and greatly improving production efficiency.

[0032] The circular welding part 22 divides the capacitor plates into several regions and connects these regions in parallel, which can effectively reduce the resistivity of the plates and thus reduce the generation of heat.

[0033] The positioning blocks on the main stem 21 facilitate the positioning of the dual-lead solder tabs within the capacitor casing during capacitor assembly. This ensures more uniform and precise placement of the dual-lead solder tabs, simplifying subsequent use and installation. Furthermore, the stable installation of the dual-lead solder tabs significantly enhances the capacitor's vibration resistance.

[0034] like Figure 1 , Figure 3 , Figure 4 As shown, Figure 1 The diagram shown is a schematic of the dual-lead solder pads in the embodiment. Figure 3 The diagram shown is a structural schematic of the capacitor housing in the embodiment; Figure 4 What is shown is Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0035] The positioning block includes a positioning block 241, and a positioning block 242 is provided at one of the ends of the positioning block 241 that is far apart from each other. Both the positioning block 242 and the positioning block 241 are trapezoidal in shape, and the diagonal length of the positioning block 242 is less than the diagonal length of the positioning block 241. The trapezoidal shape facilitates the guiding insertion of the positioning block 241 and the positioning block 242.

[0036] This application also provides DC inverter capacitors, including:

[0037] As described in any of the above, the positioning groove is provided on the side wall inside the capacitor housing 10, and the positioning block of the dual lead solder sheet is embedded in the positioning groove.

[0038] The positioning slot includes a first slot 101 and a second slot 102. The second slot 102 is located on the side of the first slot 101 that is far away from each other. The first slot 101 matches the first positioning block 241, and the second slot 102 matches the second positioning block 242.

[0039] The side wall of the capacitor housing 10 is also symmetrically provided with upper and lower stops 103, and a slot identical to the card slot 101 is formed between the stops 103.

[0040] The arrangement and cooperation of slot 101, slot 2102 and stop 103 further increase the stability during the installation of the double lead-out solder pads.

[0041] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A double-lead solder pad, characterized in that, include: The main body (21), the welding part (22) and the lead-out part (23) are respectively disposed at both ends of the main body (21), and the lead-out part (23) is a double welding piece structure; The main stem (21) is also provided with a positioning block, which is symmetrically arranged on both sides of the main stem (21). The positioning block matches the positioning groove inside the capacitor housing (10) and is embedded in the positioning groove.

2. The dual-lead solder pad according to claim 1, characterized in that, The welding part (22) is in the shape of a ring, and a welding hole (211) is provided on the welding part (22).

3. The dual-lead solder pad according to claim 1, characterized in that, The positioning block includes a positioning block one (241), and a positioning block two (242) is provided at one end of the positioning block one (241) that is far apart from each other.

4. The dual-lead solder pad according to claim 1, characterized in that, The outlet (23) is also provided with a leakage hole (231).

5. A DC inverter capacitor, characterized in that, Using the double lead solder pad and capacitor housing (10) as described in any one of claims 1-4, the positioning groove is disposed on the side wall inside the capacitor housing (10), and the positioning block of the double lead solder pad is embedded in the positioning groove.

6. The DC inverter capacitor according to claim 5, characterized in that, The positioning slot includes a first slot (101) and a second slot (102). The second slot (102) is located on the side of the first slot (101) that is far away from each other. The first slot (101) matches the first positioning block (241), and the second slot (102) matches the second positioning block (242).

7. The DC inverter capacitor according to claim 6, characterized in that, The capacitor housing (10) is also provided with symmetrical upper and lower stops (103) on the side wall, and the stops (103) form a slot that is the same as the slot (101).

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