Overcurrent protection patch component

Abstract

The utility model discloses an over-current protection patch component, and relates to the technical field of electronic product production. Comprising a first copper electrode support, a second copper electrode support is arranged on one side of the first copper electrode support, a protection sheet mechanism is arranged between the first copper electrode support and the second copper electrode support, the protection sheet mechanism comprises a first electrode, and the top of the first electrode is attached to the bottom of the first copper electrode support. The bottom of the first electrode is fixedly connected with a first PP layer. In the use process, the upper surface and the lower surface of the PPTC composite material are coated to form the first PPTC copper foil and the second PPTC copper foil, then the first PPTC copper foil and the second PPTC copper foil are subjected to inner layer circuit etching processing, the protection sheet mechanism structure is connected in parallel through the first copper electrode support and the second copper electrode support, and the rated power is doubled.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic product production, in particular to an overcurrent protection chip component. Background Art

[0002] Polymer Positive Temperature Coefficient (PPTC) protection components provide overcurrent and overtemperature protection. To enter protection mode, the product must meet a certain voltage rating. In the security and communications industries, motor protection, industrial servo control systems, energy storage, and other fields, overcurrent protection chip components monitor the current in the circuit and take appropriate protective measures when an overcurrent exceeding a preset threshold is detected. When the current exceeds a safe range, the overcurrent protection chip component quickly responds and cuts off the circuit, protecting electronic components and equipment from damage or failure caused by excessive current.

[0003] However, in existing patch products, PPTC multi-layer boards are connected in parallel using PP material through processes such as pressing. Since the PP material itself has poor heat dissipation, the more layers there are, the worse the heat dissipation effect is, resulting in a decrease in the current and voltage resistance levels. Therefore, in response to this situation, we propose a more convenient and practical overcurrent protection patch component that meets the usage needs. Utility Model Content

[0004] The purpose of the present invention is to provide an overcurrent protection chip component to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an overcurrent protection patch component, comprising a first copper electrode bracket, a second copper electrode bracket being arranged on one side of the first copper electrode bracket, a protective sheet mechanism being arranged between the first copper electrode bracket and the second copper electrode bracket, the protective sheet mechanism comprising a first electrode, the top of the first electrode being fitted with the bottom of the first copper electrode bracket, and a first PP layer being fixedly connected to the bottom of the first electrode.

[0006] Furthermore, one side of the top of the first PP layer is electrically connected to a second electrode, and the second electrode is semicircular.

[0007] Furthermore, the bottom of the first PP layer is electrically connected to a first PPTC copper foil, and the bottom of the first PPTC copper foil is fixedly connected to a PPTC composite material.

[0008] Furthermore, a second PPTC copper foil is fixedly connected to the bottom of the PPTC composite material.

[0009] Furthermore, a second PP layer is fixedly connected to the bottom of the second PPTC copper foil, and a fourth electrode is fixedly connected to one side of the bottom of the second PP layer.

[0010] Furthermore, a third electrode is fixedly connected to a side of the bottom of the second PP layer away from the fourth electrode.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The overcurrent protection patch component uses a protective sheet mechanism to laminate the upper and lower surfaces of the PPTC composite material into a first PPTC copper foil and a second PPTC copper foil during use. The inner layer circuits of the first and second PPTC copper foils are then etched, and the first and second PP layers are pressed together. At the same time, an outer layer of copper foil is pressed above the first PP layer and below the second PP layer. Finally, drilling, copper deposition, electroplating, ink solder resist and cutting are performed. The protective sheet mechanism is connected in parallel through the first and second copper electrode brackets, and the rated power is doubled. Because the electrodes are copper electrodes, the heat dissipation effect is better than that of traditional processes, and product failure due to heat dissipation problems will not occur, thereby meeting the requirements of overcurrent protection devices.

[0013] At the same time, it is manufactured in the form of a patch, which is small in size and easy to install. It is suitable for various compact electronic devices and can also effectively protect safe operation under high load current conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall effect structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the protective sheet mechanism structure of the present utility model;

[0016] Figure 3 This is a schematic diagram of the protective sheet mechanism structure of the present utility model.

[0017] In the figure: 1. First copper electrode bracket; 2. Second copper electrode bracket; 3. Protective sheet mechanism; 301. First electrode; 302. First PP layer; 303. Second electrode; 304. First PPTC copper foil; 305. PPTC composite material; 306. Second PPTC copper foil; 307. Second PP layer; 308. Third electrode; 309. Fourth electrode. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] The working principle of the overcurrent protection chip component is based on the current sensor and the control switch. When the current passes through the component, the current sensor detects the current and transmits the detected signal to the control switch. The control switch decides whether to cut off the circuit according to the preset threshold and protection strategy. Therefore, the overcurrent protection chip component is needed. When using it, it should be noted that first of all, it is necessary to ensure that the rated current of the selected overcurrent protection chip component is suitable for the circuit in the actual application. Pay attention to the operating temperature range of the overcurrent protection chip component. Exceeding the specified temperature range may cause the performance of the component to degrade or be damaged. If the overcurrent protection chip component needs to be replaced, be sure to choose a replacement that matches the original component, including the rated current, size and characteristics.

[0020] like Figure 1-Figure 3 As shown, the utility model provides a technical solution: an overcurrent protection patch component, comprising a first copper electrode bracket 1, a second copper electrode bracket 2 is provided on one side of the first copper electrode bracket 1, a protection sheet mechanism 3 is provided between the first copper electrode bracket 1 and the second copper electrode bracket 2, the protection sheet mechanism 3 comprises a first electrode 301, the top of the first electrode 301 is fitted with the bottom of the first copper electrode bracket 1, a first PP layer 302 is fixedly connected to the bottom of the first electrode 301, a second electrode 303 is electrically connected to the top side of the first PP layer 302, and the second electrode 303 is electrically connected to the top side of the first PP layer 302. The electrode 303 is semicircular in shape. The bottom of the first PP layer 302 is electrically connected to the first PPTC copper foil 304, the bottom of the first PPTC copper foil 304 is fixedly connected to the PPTC composite material 305, the bottom of the PPTC composite material 305 is fixedly connected to the second PPTC copper foil 306, the bottom of the second PPTC copper foil 306 is fixedly connected to the second PP layer 307, one side of the bottom of the second PP layer 307 is fixedly connected to the fourth electrode 309, and the bottom of the second PP layer 307 away from the fourth electrode 309 is fixedly connected to the third electrode 308.

[0021] It should be noted that during use, the upper and lower surfaces of the PPTC composite material 305 are laminated to form the first PPTC copper foil 304 and the second PPTC copper foil 306, and then the inner layer circuit etching process is performed on the first PP copper foil 304 and the second PPTC copper foil 306, and then the first PP layer 302 and the second PP layer 307 are pressed together, and at the same time, an outer layer of copper foil is pressed above the first PP layer 302 and below the second PP layer 307. Finally, drilling, copper deposition, electroplating, ink solder resist and cutting are performed. The protection sheet mechanism 3 structure is connected in parallel through the first copper electrode bracket 1 and the second copper electrode bracket 2, and the rated power is doubled. Because the electrodes use copper electrodes, the heat dissipation effect is better than the traditional process, and the product will not fail due to heat dissipation problems, thereby meeting the requirements of the overcurrent protection device. It is manufactured in the form of a patch, has a small size, is easy to install, is suitable for various compact electronic devices, and can also effectively protect safe operation under high load current conditions.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the accompanying embodiments and their equivalents.

Claims

1. An overcurrent protection chip component, comprising a first copper electrode bracket (1), characterized in that: A second copper electrode support (2) is arranged on one side of the first copper electrode support (1), a protective sheet mechanism (3) is arranged between the first copper electrode support (1) and the second copper electrode support (2), the protective sheet mechanism (3) comprising a first electrode (301), the top of the first electrode (301) being in contact with the bottom of the first copper electrode support (1), and the bottom of the first electrode (301) being fixedly connected with a first PP layer (302).

2. The overcurrent protection chip component according to claim 1, characterized in that: A second electrode (303) is electrically connected to one side of the top of the first PP layer (302), and the second electrode (303) is semicircular.

3. The overcurrent protection chip component according to claim 2, characterized in that: The bottom of the first PP layer (302) is electrically connected to a first PPTC copper foil (304), and the bottom of the first PPTC copper foil (304) is fixedly connected to a PPTC composite material (305).

4. The overcurrent protection chip component according to claim 3, characterized in that: A second PPTC copper foil (306) is fixedly connected to the bottom of the PPTC composite material (305).

5. The overcurrent protection chip component according to claim 4, characterized in that: A second PP layer (307) is fixedly connected to the bottom of the second PPTC copper foil (306), and a fourth electrode (309) is fixedly connected to one side of the bottom of the second PP layer (307).

6. The overcurrent protection chip component according to claim 5, characterized in that: The third electrode (308) is fixedly connected to the bottom of the second PP layer (307) on a side away from the fourth electrode (309).

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