Plug-in structure of compressor built-in protector

Abstract

The utility model discloses a plug-in structure of a compressor built-in protector, which comprises a support and a bell-mouth-shaped wiring terminal, opposite clamping jaws clamped on a PTC protector extend out of the two sides of the support, the upper part of the support is provided with a through slot used for inserting the wiring terminal, and the plug-in structure of the compressor built-in protector is arranged in the through slot. And one end, with a horn mouth, of the wiring terminal is arranged in the through slot and is sleeved with a live wire binding post of the compressor built-in protector, and the other end of the wiring terminal extends out of the through slot. According to the utility model, under the fixing effect of the support, the support and the PTC protector are plugged into a combined suite, and under the cooperation of the wiring terminal and the zero line terminal of the PTC protector, the combined suite can be stably plugged into an exposed binding post of the compressor built-in protector, so that the fixed connection of the wiring terminal and the live line binding post can be realized, and the wiring terminal and the zero line binding post can also be stably plugged into the compressor built-in protector. And a glass body of the live wire binding post is prevented from being worn due to looseness of the binding post and the live wire binding post caused by pulling of an external lead, so that good conductivity is ensured, short circuit is avoided, and the safety performance is improved.

Description

Technical Field

[0001] The utility model relates to a built-in protector for a compressor, in particular to a plug-in structure for external wiring posts of the built-in protector for the compressor. Background Art

[0002] The built-in protector of the compressor is used to be installed inside the compressor. Figure 1 As shown, the built-in protectors of the current compressors all have a sealed structure of a metal shell, with one or more terminals fixed on the base by glass sintering, and a part of the terminals is exposed to the external environment. The terminals used to connect the live wire need to be welded together with the flat plug terminal (1a) by welding (resistance welding), and the remaining two terminals are neutral wire terminals plugged into the PTC protector. As for the terminals used to connect the external lead (live wire end), during the welding process, a great pressing force and welding current need to be applied, so as to cause the two metals to melt together. In this process, the terminal will be damaged by the force or high temperature, and the glass will be damaged. In addition, the external lead needs to be connected (2a), and the external lead is pulled by force. When the live wire end is connected in this state, under high current or high voltage, the live wire end will be short-circuited and sparked, and finally the compressor will fail and burn. Utility Model Content

[0003] The utility model provides a plug-in structure of a compressor built-in protector, which can prevent the wiring post connected to the live wire from being welded and does not affect the performance of the wire.

[0004] The plug-in structure of the built-in protector of the compressor described in the utility model comprises a bracket and a bell-shaped wiring terminal, wherein the bracket is provided with opposite clamping claws clamped on the PTC protector on both sides, and the upper part of the bracket is provided with a through slot for inserting the wiring terminal, one end of the wiring terminal with the bell mouth is placed in the through slot and is sleeved with the live wire terminal of the built-in protector of the compressor, and the other end extends out of the through slot.

[0005] Preferably, a through hole is provided in the middle of the wiring terminal, and a hook that can be buckled into the hole is provided on the inner side wall of the through slot.

[0006] Preferably, the front end of the hook is provided with an inclined guide slope.

[0007] Preferably, a limiting buckle is provided at the lower portion of the bracket.

[0008] The plug-in structure of the built-in protector of the compressor is achieved by fixing the terminal block on the bracket, and then fixing it on the shell of the PTC protector by stably clamping it with a clamping claw. The end of the terminal block with a flared mouth is sleeved with the live wire terminal of the built-in protector of the compressor. Under the fixing effect of the bracket, the bracket and the PTC protector are plugged into a combined kit. Under the cooperation of the terminal block and the neutral wire terminal of the PTC protector, the terminal block can be stably inserted into the exposed terminal of the built-in protector of the compressor, eliminating the need for welding, and can achieve a fixed connection between the terminal block and the live wire terminal, and can also avoid the loosening of the terminal block and the live wire terminal due to the pulling of the external lead, thereby avoiding the wear of the glass body of the live wire terminal, thereby ensuring good conductivity, avoiding short circuit, and improving safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the external wiring structure of the built-in protector of the existing compressor.

[0010] Figure 2 This is an exploded schematic diagram of the plug-in structure of a built-in protector for a compressor.

[0011] Figure 3 A schematic diagram of the support structure.

[0012] Figure 4 This is a schematic diagram of the support structure in another direction.

[0013] Figure 5 This is a schematic diagram of the terminal structure.

[0014] FIG. 6 is a partial cross-sectional view of the assembly of a plug-in structure of a built-in protector for a compressor.

[0015] Figure 7 The present invention is a partial sectional view of the side assembly of a plug-in structure of a built-in protector for a compressor. DETAILED DESCRIPTION

[0016] like Figure 2-7As shown, a plug-in structure of a built-in protector for a compressor comprises a bracket 1 and a terminal 2 with a bell-shaped shape, wherein claws 3 extending from both sides of the bracket are provided opposite to each other and clamped on the PTC protector, and a through slot 4 for inserting the terminal is provided on the upper part of the bracket, one end of the terminal with the bell-shaped shape is placed in the through slot and is socketed with the live wire terminal of the built-in protector of the compressor, and the other end extends out of the through slot. By fixing and plugging the terminal block on the bracket, and then fixing it on the shell of the PTC protector with a clamping claw, the end of the terminal block with a flared mouth is sleeved with the live wire terminal block of the built-in protector of the compressor. Under the fixing effect of the bracket, the bracket and the PTC protector are plugged into a combined kit. Under the cooperation of the terminal block and the neutral terminal of the PTC protector, the terminal block can be stably inserted into the exposed terminal block of the built-in protector of the compressor, eliminating the need for welding, which can not only realize the fixed connection between the terminal block and the live wire terminal block, but also avoid the loosening of the terminal block and the live wire terminal block due to the pulling of the external lead and the wear of the glass body of the live wire terminal block, thereby ensuring good conductivity, avoiding short circuit and improving safety performance.

[0017] When the terminal is inserted into the through slot, it is inevitable that the terminal will move forward and backward relative to the through slot during the process of plugging and unplugging. Therefore, a through hole 201 is provided in the middle of the terminal 2, and a hook 401 that can be buckled into the hole is provided on the inner wall of the through slot 4. By utilizing the certain elasticity of the metal of the terminal itself, when the terminal is inserted into the through slot, the raised hook will squeeze the terminal until the hole slides to the hook. Under the action of the elastic deformation recovery of the metal, the hook buckles into the hole to fix the terminal. Furthermore, in order to smoothly insert the terminal into the through slot, the front end of the hook 401 is provided with an inclined guide slope 402.

[0018] When the bracket is fixed on the shell of the PTC protector by the clamping claws on both sides, in order to further improve the clamping stability, a limit buckle 101 is provided at the lower part of the bracket 1, which forms a three-point limit buckle with the clamping claws on both sides to clamp the three sides of the shell of the PTC protector respectively, ensuring stability and reliability.

Claims

1. A plug-in structure for a compressor built-in protector, characterized in that: It comprises a bracket (1) and a bell-shaped terminal (2), wherein two sides of the bracket are provided with opposing clamping claws (3) that clamp on the PTC protector, and the upper part of the bracket is provided with a through slot (4) for inserting the terminal, one end of the terminal with the bell-shaped end is placed in the through slot and is sleeved with the live wire terminal of the built-in protector of the compressor, and the other end extends out of the through slot.

2. The plug-in structure of the built-in protector of the compressor according to claim 1, characterized in that: A through-hole (201) is provided in the middle of the connection terminal (2), and a hook (401) that can be buckled into the through-hole is provided on the inner side wall of the through-slot (4).

3. The plug-in structure of the compressor built-in protector according to claim 2, characterized in that: The front end of the hook (401) is provided with an inclined guide slope (402).

4. The plug-in structure of the built-in protector of the compressor according to claim 1, characterized in that: A limit buckle (101) is provided at the bottom of the bracket (1).

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