Quick connecting structure

Abstract

The utility model provides a quick connecting structure. The metal terminal is welded with the printed circuit board, and the electrode metal sheet connected with the PTC electric heater is inserted into the metal terminal, so that the purpose of connecting the PTC electric heater with the printed circuit board is achieved. According to the utility model, the rapid connection of the PTC electric heater and the printed circuit board is realized, the stability of production quality is ensured, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of PTC electric heater assembly, and particularly relates to a quick connection structure. Background Art

[0002] In the field of new energy vehicles, PTC electric heaters are mostly involved in heating work, and it is necessary to electrically connect the electrode plates of the PTC electric heaters to the printed circuit boards. In the prior art, two schemes of welding and screw fastening are mostly adopted, but both of these two schemes bring some problems more or less; since the welding process is relatively cumbersome and the welding speed is slow, it affects the production efficiency, and there may also be situations such as missed welding and false welding. Moreover, for different PTC electric heater products, different printed circuit boards need to be connected, and the disassembly and replacement are relatively difficult, which easily leads to the scrapping of the printed circuit boards. Since there are many and messy wire harnesses inside the printed circuit board, screw fastening requires a relatively high process, the quality risk coefficient is high, and there may be situations of loosening and false connection. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is that the prior art uses welding to connect the PTC electric heater and the printed circuit board, which will lead to slow welding speed, missed welding, false welding, difficult disassembly and replacement, and using screw tightening will lead to quality problems, affecting production efficiency and increasing production costs. The utility model provides a quick connection structure.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides a quick connection structure. The quick connection structure includes: a metal terminal and an electrode metal sheet,

[0006] The metal terminal is welded to the printed circuit board;

[0007] The electrode metal sheet is inserted on the metal terminal.

[0008] Preferably, the metal terminal includes at least one metal elastic sheet, and the metal elastic sheets are connected by a clamping component to form the metal terminal.

[0009] Preferably, the metal terminal includes two metal elastic sheets and one clamping component, and the two metal elastic sheets are symmetrically fixed on the clamping component.

[0010] Preferably, a card slot is provided in the middle of the clamping component for inserting the electrode metal sheet.

[0011] Preferably, a connection hole is provided on the printed circuit board for welding the metal terminal.

[0012] Preferably, the metal terminal is soldered to the printed circuit board by wave soldering.

[0013] Preferably, the electrode metal sheet is connected to the PTC electric heater.

[0014] The positive and progressive effects of the present utility model are as follows: The present utility model provides a quick connection structure. By designing the soldering of the metal terminal and the printed circuit board, the electrode metal sheet connected to the PTC electric heater is inserted into the metal terminal to achieve the connection between the PTC electric heater and the printed circuit board. The present utility model realizes the quick connection between the PTC electric heater and the printed circuit board, ensures the stability of the production quality, reduces the production cost, and improves the production efficiency. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the quick connection structure according to an embodiment of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the metal terminal according to an embodiment of the present utility model.

[0017] Figure 3 It is a top view schematic diagram of the metal terminal according to an embodiment of the present utility model.

[0018] Figure 4 It is a schematic structural diagram of the printed circuit board according to an embodiment of the present utility model.

[0019] Figure 5 It is a schematic diagram of the electrode metal sheet according to an embodiment of the present utility model.

[0020] Legend Explanation: 1. Metal terminal; 2. Printed circuit board; 3. Electrode metal sheet; 4. Metal spring sheet; 5. Clamping component; 6. Welding part; 7. Card slot; 8. Connection hole. Detailed Embodiments

[0021] The present utility model will be further described below by way of embodiments, but the present utility model is not limited to the scope of the described embodiments.

[0022] Embodiment 1

[0023] As Figure 1 shown, this embodiment provides a quick connection structure. The quick connection structure includes: a metal terminal 1 and an electrode metal sheet 3, the metal terminal 1 is soldered to the printed circuit board 2; the electrode metal sheet 3 is inserted onto the metal terminal 1.

[0024] As Figures 2-3As shown, in this embodiment, the metal terminal 1 includes at least one metal spring piece 4, and the metal spring pieces 4 are connected by a clamping component 5 to form the metal terminal 1. Specifically, the metal terminal 1 is composed of two metal spring pieces 4 and a clamping component 5. The two metal spring pieces 4 are symmetrically fixed on the clamping component 5 by deforming the metal material, and a slot 7 is provided in the middle for inserting the electrode metal sheet 3. One end of the metal spring piece 4 is bent and fixedly connected to the clamping component 5, and the other end of about one-third of the metal spring piece 5 is bent outward to form a welding part 6 for welding with the printed circuit board 2. The metal terminal 1 in this embodiment is directly formed by metal materials without additionally arranging metal parts to strengthen the fixation of the metal spring pieces 4, reducing parts and lowering the production cost.

[0025] As Figure 4 shown, in this embodiment, the metal terminal 1 is welded to the printed circuit board 2 by wave soldering. Specifically, connection holes 8 are provided on the printed circuit board 2 for welding the metal terminal 1; using wave soldering to weld the metal terminal 1 is beneficial to improving production efficiency. Wave soldering can complete the welding process of the metal terminal 1 in a short time without affecting subsequent production work; it is beneficial to the stability of electrical connection. Wave soldering has a high welding precision and can ensure the welding quality.

[0026] In this embodiment, the electrode metal sheet 3 is connected to the PTC electric heater. Connecting the electrode metal sheet 3 to the electrode of the PTC electric heater can directly achieve the purpose of quickly connecting the PTC electric heater and the printed circuit board 2 by inserting the electrode metal sheet 3 into the metal terminal 1. The quick connection structure of this embodiment is easy to disassemble. When any one of the PTC electric heater and the printed circuit board 2 has a defect, they can be quickly separated without damaging any product, ensuring the stable progress of subsequent production work.

[0027] This embodiment provides a quick connection structure. This quick connection structure achieves the connection between the PTC electric heater and the printed circuit board 2 by designing the welding of the metal terminal and the printed circuit board and inserting the electrode metal sheet connected to the PTC electric heater into the metal terminal. The utility model realizes the quick connection between the PTC electric heater and the printed circuit board, ensures the stability of production quality, reduces the production cost, and improves the production efficiency.

[0028] The working principle of the utility model is: pre-welding the metal terminal 1 to the printed circuit board 2 by wave soldering; inserting the PTC electric heater connected with the electrode metal sheet 3 onto the metal terminal 1 and connecting it to the connection hole 8, so as to achieve the connection between the PTC electric heater and the printed circuit board.

[0029] Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that this is only an example, and the protection scope of the present utility model is defined by the appended claims. Without departing from the principle and essence of the present utility model, those skilled in the art can make various changes or modifications to these embodiments, but such changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A quick connection structure for use between a PTC electric heater and a printed circuit board, characterized in that, The quick connection structure includes: a metal terminal and an electrode metal sheet, The metal terminal is welded to the printed circuit board; The electrode metal sheet is inserted onto the metal terminal, The metal terminal includes at least one metal elastic piece, and the metal elastic pieces are connected by a clamping component to form the metal terminal. The metal terminal includes two metal elastic pieces and one clamping component. The two metal elastic pieces are symmetrically fixed on the clamping component. A card slot is provided in the middle of the clamping component for inserting the electrode metal sheet. A connection hole for welding the metal terminal is provided on the printed circuit board. One end of the metal elastic piece is bent and fixedly connected to the clamping component, and the outer one-third of the other end of the metal elastic piece is bent to form a welding portion for welding with the printed circuit board.

2. The quick connection structure according to claim 1, wherein A connection hole is provided on the printed circuit board, and the connection hole is used for welding the metal terminal.

3. The quick connection structure according to claim 2, characterized in that The metal terminal is welded to the printed circuit board by wave soldering.

4. The quick connection structure according to claim 1, characterized in that, The electrode metal sheet is connected to the PTC electric heater.

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