Material for manufacturing earth leakage protection switch shell and manufacturing method thereof

Abstract

The invention discloses a material for manufacturing a shell of a leakage protection switch, the material comprises raw materials, the raw materials comprise a base material and an additive, the base material and the additive are fully mixed through a high-speed mixer and then are subjected to injection molding through an injection molding machine to form the shell, and the shell is of an explosion-proof structure; the explosion-proof structure comprises a support structure used for increasing the strength of the shell body and a coating structure used for protecting the outside of the shell body. By means of the mode, according to the material for manufacturing the leakage protection switch shell and the manufacturing method of the leakage protection switch shell, the shell manufactured through the method is provided with an anti-explosion structure, damage to surrounding people can be reduced when explosion occurs, and the safety of people is protected.

Description

Technical Field

[0001] The invention relates to the field of electrical materials, and in particular to a material for manufacturing a leakage protection switch housing and a manufacturing method thereof. Background Art

[0002] The leakage protection switch can detect abnormal leakage of current and quickly cut off the circuit when leakage occurs, thereby preventing electric shock accidents and reducing the risk of fire caused by leakage. When the leakage current exceeds the set value, the switch will immediately disconnect the power supply to prevent overheating of the wires or sparks. By monitoring the changes in current, the leakage protection switch can cut off the power supply in time when the equipment fails to prevent equipment damage. Installing leakage protection switches in homes, factories, hospitals and other places can greatly improve electricity safety and protect people's lives and property.

[0003] In order to improve the safety of leakage protection switches, flame retardant materials are usually added when producing the shell. Although this method can improve the shell's ability to resist fire, it will still cause harm to surrounding personnel in the event of an explosion. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a material for manufacturing a leakage protection switch housing and a manufacturing method thereof, which can reduce the harm to surrounding personnel when an explosion occurs.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: a material for manufacturing a leakage protection switch housing, comprising a raw material, wherein the raw material comprises a base material and an additive, wherein the base material and the additive are fully mixed by a high-speed mixer, and then an injection molding machine is used to inject the base material and the additive into a housing, wherein the housing adopts an explosion-proof structure;

[0006] The explosion-proof structure includes a support structure for increasing the strength of the shell itself and a coating structure for protecting the outside of the shell.

[0007] In a preferred embodiment of the present invention, the types of the substrate include: polycarbonate, polypropylene and reinforced glass fiber.

[0008] In a preferred embodiment of the present invention, the additives include: a flame retardant, an anti-ultraviolet agent and an antistatic agent.

[0009] In a preferred embodiment of the present invention, the mass fractions of the components in the raw material are: 100 parts of the substrate, 5 to 30 parts of the flame retardant, 1 to 5 parts of the anti-ultraviolet agent and 0.5 to 3 parts of the antistatic agent.

[0010] In a preferred embodiment of the present invention, the support structure is a metal grid frame, and the metal grid frame matches the structure of the shell.

[0011] In a preferred embodiment of the present invention, the coating structure is epoxy resin.

[0012] A method for manufacturing a material for manufacturing a leakage protection switch housing, the specific steps comprising:

[0013] 1) Material preparation: weighing the substrate and the additive according to the mass fraction;

[0014] 2) Mixing: Use a high-speed mixer to fully mix the substrate and the additive weighed in step 1) to ensure uniform distribution;

[0015] 3) Molding: using injection molding technology, the base material and the additive mixed in step 2) are heated to a molten state, injected into a mold, and cooled and solidified to form the shell;

[0016] 4) Post-treatment: performing surface treatment on the shell formed in step 3), firstly polishing the shell, and then immersing it in epoxy resin to form the coating structure on its surface.

[0017] In a preferred embodiment of the present invention, in the step 3), the raw material in a molten state is first filled into the second groove of the bottom mold so that the upper surface of the raw material is at the same height as the opening of the second groove, and then the metal grid frame is inserted into the second groove, and the top mold is covered, and the raw material in a molten state is continued to be injected through the opening on the top mold until the first groove in the top mold is filled, and then it is cooled and solidified to form the shell.

[0018] The beneficial effects of the present invention are as follows: the present invention provides a material for manufacturing a leakage protection switch housing and a manufacturing method thereof, wherein the housing manufactured by the method has an explosion-proof structure, can reduce damage to surrounding personnel when an explosion occurs, and protect people's safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a processing schematic diagram of step 3) in a method for manufacturing a material for a leakage protection switch housing.

[0020] Figure 2 This is a material parameter table of Examples 1 to 3.

[0021] The markings of the components in the accompanying drawings are as follows: 1. first groove; 2. second groove; 3. metal grid frame. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] See also Figure 1 A material for manufacturing a leakage protection switch housing includes raw materials, wherein the raw materials include a base material and an additive. After the base material and the additive are fully mixed by a high-speed mixer, they are injection molded into a housing by an injection molding machine. The housing adopts an explosion-proof structure, which can reduce damage to surrounding personnel in the event of an explosion and protect people's safety.

[0024] The explosion-proof structure includes a support structure for increasing the strength of the shell itself and a coating structure for protecting the outside of the shell.

[0025] The types of the substrate include: polycarbonate, polypropylene and reinforced glass fiber. In this embodiment, the substrate is reinforced glass fiber. Adding reinforced glass fiber can improve the strength and impact resistance of the leakage protection switch housing and increase its explosion-proof capability.

[0026] The additives include: flame retardant, anti-ultraviolet agent and antistatic agent.

[0027] The flame retardant is a brominated flame retardant, which can improve the fire and explosion resistance of the leakage protection switch housing.

[0028] The mass proportions of the components in the raw material are: 100 parts of the substrate, 5 to 30 parts of the flame retardant, 1 to 5 parts of the anti-ultraviolet agent and 0.5 to 3 parts of the antistatic agent.

[0029] The support structure is a metal mesh frame 3, and the metal mesh frame 3 matches the structure of the shell.

[0030] In this embodiment, the metal grid frame 3 is made of aluminum alloy, which can increase the stability and explosion resistance of the leakage protection switch housing structure.

[0031] The coating structure is epoxy resin, which can increase the surface explosion-proof capability of the leakage protection switch housing and improve its chemical corrosion resistance and impact resistance.

[0032] Example 1

[0033] A method for manufacturing a material for manufacturing a leakage protection switch housing, the specific steps comprising:

[0034] 1) Material preparation: 100 parts of the substrate, 30 parts of the flame retardant, 4 parts of the anti-ultraviolet agent and 3 parts of the antistatic agent were weighed according to their mass fractions.

[0035] 2) Mixing: Use a high-speed mixer to fully mix the base material and the additive weighed in step 1) to ensure uniform distribution.

[0036] 3) Molding: Using injection molding technology, the base material and the additives mixed in step 2) are heated to a molten state and then injected into a mold, cooled and solidified to form the shell. The specific steps are: first, fill the second groove 2 of the bottom mold with the molten raw material so that the upper surface of the raw material is at the same height as the opening of the second groove 2, then insert the metal grid frame 3 into the second groove 2, cover the top mold, and continue to inject the molten raw material through the opening on the top mold until the first groove 1 in the top mold is filled, and wait for it to cool and solidify to form the shell.

[0037] 4) Post-treatment: performing surface treatment on the shell formed in step 3), firstly polishing the shell, and then immersing it in epoxy resin to form the coating structure on its surface.

[0038] Example 2

[0039] A method for manufacturing a material for manufacturing a leakage protection switch housing, the specific steps comprising:

[0040] 1) Material preparation: 100 parts of the substrate, 20 parts of the flame retardant, 3 parts of the anti-ultraviolet agent and 2 parts of the antistatic agent were weighed according to their mass fractions.

[0041] 2) Mixing: Use a high-speed mixer to fully mix the base material and the additive weighed in step 1) to ensure uniform distribution.

[0042] 3) Molding: Using injection molding technology, the base material and the additives mixed in step 2) are heated to a molten state and then injected into a mold, cooled and solidified to form the shell. The specific steps are: first, fill the second groove 2 of the bottom mold with the molten raw material so that the upper surface of the raw material is at the same height as the opening of the second groove 2, then insert the metal grid frame 3 into the second groove 2, cover the top mold, and continue to inject the molten raw material through the opening on the top mold until the first groove 1 in the top mold is filled, and wait for it to cool and solidify to form the shell.

[0043] 4) Post-treatment: performing surface treatment on the shell formed in step 3), firstly polishing the shell, and then immersing it in epoxy resin to form the coating structure on its surface.

[0044] Example 3

[0045] A method for manufacturing a material for manufacturing a leakage protection switch housing, the specific steps comprising:

[0046] 1) Material preparation: 100 parts of the substrate, 10 parts of the flame retardant, 2 parts of the anti-ultraviolet agent and 1 part of the antistatic agent were weighed according to their mass fractions.

[0047] 2) Mixing: Use a high-speed mixer to fully mix the base material and the additive weighed in step 1) to ensure uniform distribution.

[0048] 3) Molding: Using injection molding technology, the base material and the additives mixed in step 2) are heated to a molten state and then injected into a mold, cooled and solidified to form the shell. The specific steps are: first, fill the second groove 2 of the bottom mold with the molten raw material so that the upper surface of the raw material is at the same height as the opening of the second groove 2, then insert the metal grid frame 3 into the second groove 2, cover the top mold, and continue to inject the molten raw material through the opening on the top mold until the first groove 1 in the top mold is filled, and wait for it to cool and solidify to form the shell.

[0049] 4) Post-treatment: performing surface treatment on the shell formed in step 3), firstly polishing the shell, and then immersing it in epoxy resin to form the coating structure on its surface.

[0050] Compared with the prior art, the present invention provides a material for manufacturing a leakage protection switch housing and a manufacturing method thereof. The housing manufactured by the method has an explosion-proof structure, which can reduce damage to surrounding personnel in the event of an explosion and protect people's safety.

[0051] In the description of the present invention, it should be noted that the components are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional test methods. The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships described in the accompanying drawings, or are the directions or positional relationships in which the box of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0052] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A material for manufacturing a leakage protection switch housing, comprising a raw material, wherein the raw material comprises a base material and an additive, wherein the base material and the additive are fully mixed by a high-speed mixer and then injection molded into a housing by an injection molding machine, wherein: The shell adopts an explosion-proof structure; The explosion-proof structure includes a support structure for increasing the strength of the shell itself and a coating structure for protecting the outside of the shell.

2. The material for manufacturing a leakage protection switch housing according to claim 1, characterized in that: The types of substrates include polycarbonate, polypropylene and reinforced glass fiber.

3. The material for manufacturing a leakage protection switch housing according to claim 2, characterized in that: The additives include: flame retardant, anti-ultraviolet agent and antistatic agent.

4. The material for manufacturing a leakage protection switch housing according to claim 3, characterized in that: The mass proportions of the components in the raw material are: 100 parts of the substrate, 5 to 30 parts of the flame retardant, 1 to 5 parts of the anti-ultraviolet agent and 0.5 to 3 parts of the antistatic agent.

5. The material for manufacturing a leakage protection switch housing according to claim 4, characterized in that: The support structure is a metal grid frame, and the metal grid frame matches the structure of the shell.

6. The material for manufacturing a leakage protection switch housing according to claim 5, characterized in that: The coating structure is epoxy resin.

7. A method for manufacturing a material for manufacturing a leakage protection switch housing according to claim 6, characterized in that: The specific steps include: 1) Material preparation: weighing the substrate and the additive according to the mass fraction; 2) Mixing: Use a high-speed mixer to fully mix the substrate and the additive weighed in step 1) to ensure uniform distribution; 3) Molding: using injection molding technology, the base material and the additive mixed in step 2) are heated to a molten state, injected into a mold, and cooled and solidified to form the shell; 4) Post-treatment: performing surface treatment on the shell formed in step 3), firstly polishing the shell, and then immersing it in epoxy resin to form the coating structure on its surface.

8. A method for manufacturing a material for manufacturing a leakage protection switch housing according to claim 7, characterized in that: In the step 3), the raw material in a molten state is first filled into the second groove of the bottom mold so that the upper surface of the raw material is at the same height as the opening of the second groove. Then the metal mesh frame is inserted into the second groove and the top mold is covered. The raw material in a molten state is continuously injected through the opening on the top mold until the first groove in the top mold is filled and then cooled and solidified to form the shell.

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