Glue injection electricity insulation dustproof structure of switch terminal

Abstract

The utility model provides a switch terminal glue injection electricity insulation dustproof structure, comprising a glue injection electricity insulation dustproof assembly, the glue injection electricity insulation dustproof assembly comprises a switch installation housing, the switch installation housing is internally provided with an accommodating groove used for accommodating a wiring terminal on a power switch, the power switch is packaged in the switch installation housing, and the switch installation housing is internally provided with a power supply terminal. A binding post on the power switch extends into the containing groove, a glue injection hole is formed in the switch installation shell, and liquid insulation glue is injected into the containing groove through the glue injection hole to completely wrap the binding post to form an electricity insulation dustproof wrapping layer. According to the switch terminal glue injection electric insulation dustproof structure provided by the utility model, the periphery of the wiring terminal of the power switch is coated with the electric insulation dustproof wrapping layer made of the liquid insulation glue, and the electric insulation dustproof wrapping layer can completely eradicate power supply short circuit caused by accumulation of metal dust, and has the advantages of high efficiency and stability, so that the personal safety of a user is ensured, and the service life of the user is prolonged. And the assembling efficiency of the angle grinder can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of angle grinders, in particular to a switch terminal glue injection electric insulation and dustproof structure. Background Art

[0002] Angle grinder, also known as grinding machine or disc grinder, is a kind of grinding tool used for cutting and grinding fiberglass. Angle grinder is a portable electric tool that uses fiberglass to cut and grind, mainly used for cutting, grinding and brushing metal and stone.

[0003] If conventional angle grinders do not take dust prevention measures in front of the two power terminals of the power switch, it is very easy for metal dust to accumulate and cause a power short circuit, seriously affecting the personal safety of users. The dust prevention methods currently adopted in the market basically use glue or direct sealing. The glue method is more effective in preventing metal dust, but the amount and position of glue are difficult to control during the gluing process, which can easily leave pores and cause failure, or excessive glue can cause interference and make assembly impossible, resulting in low assembly efficiency. The closed structure will also fail due to the tolerance of the mold manufacturing and the dimensional tolerance of the parts themselves, leaving gaps during assembly.

[0004] Therefore, a switch terminal glue injection electric insulation and dustproof structure is proposed. Utility Model Content

[0005] The utility model aims to solve the problems raised in the background technology and provides a switch terminal glue injection electric insulation and dustproof structure.

[0006] The specific technical solutions are as follows:

[0007] A switch terminal glue injection electric insulation and dustproof structure, comprising:

[0008] The glue-injected electric-insulating and dust-proof component comprises a switch mounting housing, the switch mounting housing has a receiving groove for receiving the wiring terminals on the power switch, the power switch is encapsulated in the switch mounting housing, and the wiring terminals on the power switch extend into the receiving groove, wherein:

[0009] The switch mounting housing is provided with a glue injection hole, which is connected to the interior of the receiving groove. Liquid insulating glue is injected into the interior of the receiving groove through the glue injection hole to completely cover the wiring terminal to form an electric-insulating and dust-proof wrapping layer.

[0010] As a preferred solution of the utility model, the glue-injected electric-insulating and dust-proof component includes a glue-injected protective shell, the glue-injected protective shell has a glue-injecting hole, the glue-injected protective shell is clamped on the power switch, and the glue-injected protective shell completely surrounds the wiring terminals on the power switch, and liquid insulating glue is injected into the interior of the glue-injected protective shell through the glue-injecting hole to completely cover the wiring terminals to form an electric-insulating and dust-proof wrapping layer, and the glue-injected protective shell together with the power switch with the electric-insulating and dust-proof wrapping layer is encapsulated inside a switch mounting shell that does not have a glue injection hole.

[0011] As a preferred solution of the utility model, the glue injection electric insulation and dustproof component includes a glue injection mold, the glue injection mold has a cavity with an opening structure, after the wiring terminals on the power switch are placed in the cavity, liquid insulating glue is injected through the opening of the cavity to completely cover the wiring terminals to form an electric insulation and dustproof wrapping layer, the glue injection mold is removed, and the power switch with the electric insulation and dustproof wrapping layer is encapsulated inside a switch installation shell that does not have a glue injection hole.

[0012] As a preferred solution of the utility model, the switch mounting housing is fixedly mounted inside the angle grinder housing, and the operating part on the power switch is exposed from the angle grinder housing.

[0013] As a preferred solution of the utility model, the switch installation housing is an insulating plastic housing.

[0014] As a preferred solution of the utility model, the glue-injected protective shell is an insulating plastic shell.

[0015] The utility model has the following beneficial effects:

[0016] The switch terminal glue-injected electric-insulating and dust-proof structure provided by the utility model combines the advantages of gluing and sealing to eliminate the corresponding disadvantages, changes the traditional direct gluing method, designs a new gluing method and structure, and coats the outer periphery of the wiring terminal of the power switch with an electric-insulating and dust-proof wrapping layer made of liquid insulating glue. The electric-insulating and dust-proof wrapping layer can prevent the accumulation of metal dust and cause power short circuit, and has the advantages of high efficiency and stability, thereby ensuring the personal safety of users. In addition, the switch terminal glue-injected electric-insulating and dust-proof structure is easy to assemble, and can improve the assembly efficiency of the angle grinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the switch terminal glue injection electric insulation and dustproof structure provided in Example 1 of the utility model;

[0018] Figure 2 A schematic diagram of the structure of the power switch provided in Embodiments 1-3 of the present utility model;

[0019] Figure 3A schematic cross-sectional view of the switch terminal glue injection electrical insulation and dustproof structure provided in Example 1 of the utility model;

[0020] Figure 4 A schematic diagram of the structure of the switch installation housing in the switch terminal glue injection electric insulation and dustproof structure provided in Examples 1-3 of the utility model;

[0021] Figure 5 A schematic diagram of the structure of the switch terminal glue injection electric insulation and dustproof structure provided in Example 2 of the utility model;

[0022] Figure 6 This is a schematic structural diagram of the glue injection mold provided in Example 3 of the utility model.

[0023] In the attached figure:

[0024] 1. Power switch; 101. Wiring terminal; 2. Switch mounting housing; 201. Glue injection hole; 202. Accommodation groove; 3. Glue injection protective shell; 301. Glue addition hole; 4. Glue injection mold; 401. Cavity. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0026] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Example 1

[0030] The switch terminal provided in this embodiment has a glue-injected electric-insulation and dust-proof structure, such as Figure 1-Figure 4 As shown, it includes: a glue-injected electric-insulating and dust-proof component, which includes a switch mounting housing 2, the switch mounting housing 2 has a receiving groove 202 for receiving the wiring terminal 101 on the power switch 1, the power switch 1 is encapsulated in the switch mounting housing 2, and the wiring terminal 101 on the power switch 1 extends into the receiving groove 202, wherein:

[0031] The switch mounting housing 2 is provided with a glue injection hole 201 which is connected to the interior of the receiving groove 202 . Liquid insulating glue is injected into the interior of the receiving groove 202 through the glue injection hole 201 to completely cover the terminal 101 to form an electric-insulating and dust-proof wrapping layer.

[0032] The switch terminal glue-injected electric-insulating and dust-proof structure adopts the above-mentioned technical solution, by opening a glue injection hole 201 connected with the interior of the accommodating groove 202 on the switch mounting shell 2, and injecting liquid insulating glue into the interior of the accommodating groove 202 through the glue injection hole 201 to completely cover the terminal 101 to form an electric-insulating and dust-proof wrapping layer. The electric-insulating and dust-proof wrapping layer is used to isolate and dust-proof the terminal 101 of the power switch 1, which can effectively avoid power short circuit caused by metal dust accumulation, thereby ensuring the personal safety of users.

[0033] Example 2

[0034] The switch terminal provided in this embodiment has a glue-injected electric-insulation and dust-proof structure, such as Figure 5 As shown, the difference from Example 1 is that the glue-injected electric-insulating and dust-proof component includes a glue-injected protective shell 3, which has a glue-injecting hole 301. The glue-injected protective shell 3 is clamped on the power switch 1, and the glue-injected protective shell 3 completely surrounds the wiring terminal 101 on the power switch 1. Liquid insulating glue is injected into the interior of the glue-injected protective shell 3 through the glue-injecting hole 301 to completely cover the wiring terminal 101 to form an electric-insulating and dust-proof wrapping layer, and the glue-injected protective shell 3 together with the power switch 1 with the electric-insulating and dust-proof wrapping layer is encapsulated in the interior of the switch mounting shell 2 without the glue-injecting hole 201.

[0035] The switch terminal glue-injected electric-insulating and dust-proof structure adopts the above-mentioned technical solution. By setting the glue-injected protective shell 3, there is no need to open the glue injection hole 201 on the switch installation shell. The glue-injected protective shell 3 can be clamped on the power switch 1 in advance, and the glue-injected protective shell 3 is used to completely surround the wiring terminal 101 on the power switch 1. Liquid insulating glue is injected into the interior of the glue-injected protective shell 3 through the glue injection hole 301 to completely cover the wiring terminal 101 to form an electric-insulating and dust-proof wrapping layer. Then, the glue-injected protective shell 3 together with the power switch 1 with the electric-insulating and dust-proof wrapping layer is directly encapsulated in the interior of the switch installation shell 2 without the glue injection hole 201, which can improve the assembly efficiency.

[0036] Example 3

[0037] The switch terminal provided in this embodiment has a glue-injected electric-insulation and dust-proof structure, such as Figure 6 As shown, the difference from Example 1 is that: the set glue injection electric insulation and dustproof component includes a glue injection mold 4, and the glue injection mold 4 has a cavity 401 with an opening structure. After the terminal 101 on the power switch 1 is placed in the cavity 401, liquid insulating glue is injected through the opening of the cavity 401 to completely cover the terminal 101 to form an electric insulation and dustproof wrapping layer, the glue injection mold 4 is removed, and the power switch 1 with the electric insulation and dustproof wrapping layer is encapsulated in the interior of the switch installation shell 2 without the glue injection hole 201.

[0038] The glue-injected electric-insulating and dust-proof component using the above-mentioned technical solution only needs to use a glue injection mold 4 to form a layer of electric-insulating and dust-proof wrapping layer on the periphery of the terminal 101 on the power switch 1, and then directly package the power switch 1 with the electric-insulating and dust-proof wrapping layer inside the switch mounting housing 2 without the glue injection hole 201, which can further improve the assembly efficiency.

[0039] It is worth noting that the switch mounting housing 2 in the above embodiments 1-3 is fixedly mounted inside the angle grinder housing. In order to operate the operating part on the power switch 1, the operating part on the power switch 1 is exposed from the angle grinder housing.

[0040] In order to ensure the insulation protection effect, the switch installation housing 2 is an insulating plastic housing, and the glue injection protection shell 3 is an insulating plastic housing.

[0041] In summary, the switch terminal glue injection electric insulation and dustproof structure provided in this embodiment has the following advantages:

[0042] The switch terminal has a glue-injected, electric-insulating and dust-proof structure. It is simple, stable and efficient to use in the glue-injection process of the angle grinder power switch. It can be achieved in different ways in different scenarios. It has a wide range of applications, improves factory production efficiency and quality, extends the service life of the machine, enhances customer experience, and also invisibly reduces hidden costs such as after-sales maintenance.

[0043] It is worth noting that, when injecting glue, a glue injection tool such as a hot melt gun can be used to directly inject liquid insulating glue through the glue injection hole 201 or the glue injection hole 301 or the opening of the cavity 401 .

[0044] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A switch terminal glue injection electric insulation and dustproof structure, characterized in that: include: The glue-injected electric-insulating and dust-proof component comprises a switch mounting housing, the switch mounting housing has a receiving groove for receiving the wiring terminals on the power switch, the power switch is encapsulated in the switch mounting housing, and the wiring terminals on the power switch extend into the receiving groove, wherein: The switch mounting housing is provided with a glue injection hole, which is connected to the interior of the receiving groove. Liquid insulating glue is injected into the interior of the receiving groove through the glue injection hole to completely cover the wiring terminal to form an electric-insulating and dust-proof wrapping layer.

2. The switch terminal glue injection electric insulation and dustproof structure according to claim 1, characterized in that: Or the glue-injected electric-insulating and dust-proof component includes a glue-injected protective shell, which has a glue-injected hole. The glue-injected protective shell is clamped on a power switch, and the glue-injected protective shell completely surrounds the wiring terminals on the power switch. Liquid insulating glue is injected into the interior of the glue-injected protective shell through the glue-injected hole to completely cover the wiring terminals to form an electric-insulating and dust-proof wrapping layer. The glue-injected protective shell together with the power switch with the electric-insulating and dust-proof wrapping layer is encapsulated inside a switch mounting shell that does not have a glue injection hole.

3. The switch terminal glue injection electric insulation and dustproof structure according to claim 1, characterized in that: Or the glue injection electric insulation and dustproof component includes a glue injection mold, which has a cavity with an opening structure. After the wiring terminals on the power switch are placed in the cavity, liquid insulating glue is injected through the opening of the cavity to completely cover the wiring terminals to form an electric insulation and dustproof wrapping layer. The glue injection mold is removed, and the power switch with the electric insulation and dustproof wrapping layer is encapsulated inside a switch installation shell that does not have a glue injection hole.

4. The switch terminal glue injection electric insulation and dustproof structure according to any one of claims 1 to 3, characterized in that: The switch mounting housing is fixedly mounted inside the angle grinder housing, and the operating portion on the power switch is exposed from the angle grinder housing.

5. The switch terminal glue injection electric insulation and dustproof structure according to claim 1, characterized in that: The switch installation housing is an insulating plastic housing.

6. The switch terminal glue injection electric insulation and dustproof structure according to claim 2, characterized in that: The glue-injected protective shell is an insulating plastic shell.

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