Switch assembly

Abstract

The utility model discloses a switch assembly, which relates to the switch field, and comprises a button switch, a handle, a spring cable and a connector, the button switch is arranged on the handle, a circuit board connected with the button switch and the spring cable is arranged in the handle, the circuit board is provided with an indicating lamp, a resistor and a thermal protection module, and the connector is connected with the button switch and the spring cable. And the handle is internally and integrally filled with glue. The utility model has the advantages of good safety and good working reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the switch field, concretely relates to a switch assembly. BACKGROUND

[0002] The prior art hand-held switch assembly such as the hand-held switch assembly of CN219267513U disclosed on June 27, 2023, button switch is provided with resistance, can prevent starting voltage current from being too large to cause damage to indicator light, but internal structure is too scattered, and there is no restraint, and it is easy to loosen in vibration environment and cause damage, in addition, no thermal protection module is set, and low safety is low. SUMMARY

[0003] In order to overcome the deficiency of the background art, the utility model provides a switch assembly with good safety and good working reliability.

[0004] The utility model employs the technical scheme: a switch assembly, including button switch, handle, spring cable and connector, button switch is arranged on handle, handle is equipped with the circuit board that is connected with button switch and spring cable in, be equipped with indicator light, resistance and thermal protection module on the circuit board, the handle inside whole fills glue.

[0005] The thermal protection module uses a thermistor.

[0006] The indicator light is an LED lamp arranged on both sides of the circuit board.

[0007] One end of the spring cable is inserted into the handle and connected with the circuit board, and the other end of the spring cable is connected with the connector, and the connector is connected with the relay of the cab rollover system through the wire or cable.

[0008] The handle includes an upper cover, a lower cover, a shell and a waterproof joint, the upper cover is used for mounting the button switch, a middle cover with screw connection between the lower cover and the upper cover, the middle cover adopts light transmission material and corresponds with the indicator light on the circuit board.

[0009] The upper cover is provided with a waterproof rubber cap covering the button switch.

[0010] It also includes a base for mounting the handle, and the base is provided with clamping parts on both sides for clamping and fixing the handle.

[0011] The utility model has the advantages that the technical scheme adds a thermal protection module, plays the role of over-temperature protection and over-heat protection, and can greatly increase the safety performance of the switch assembly; in addition, the resistance, the indicator light and the thermal protection module are integrated on the circuit board, and the handle is filled with glue inside, which has the advantage of good working stability. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structure schematic view of the switch assembly of the utility model embodiment.

[0013] Figure 2 It is a circuit diagram of the circuit board.

[0014] Figure 3 It is a split structure schematic view of the switch assembly.

[0015] Figure 4 It is a sectional view of the switch assembly. DETAILED DESCRIPTION

[0016] The utility model embodiment is further explained in connection with the drawings below:

[0017] As shown in the figure, a switch assembly, including button switch 1, handle 2, spring cable 3 and connector 4, button switch 1 is arranged on handle 2, handle 2 is equipped with circuit board 5 connected with button switch 1 and spring cable 3, circuit board 5 is equipped with indicating lamp 6, resistance 9 and thermal protection module 8, handle 2 inside is integrally filled with glue.The technical scheme of the present application adds thermal protection module, plays the role of over-temperature protection and over-heat protection, can greatly increase the safety performance of switch assembly;In addition, resistance, indicating lamp and thermal protection module are integrated on the circuit board, and the handle is filled with glue inside, which has the advantages of good working stability.

[0018] The thermal protection module 8 adopts a thermistor, which has the advantages of high sensitivity and good stability.

[0019] The indicating lamp 6 is an LED lamp arranged on both sides of the circuit board 5, which has the advantages of small size, long service life and high efficiency.

[0020] One end of the spring cable 3 is inserted into the handle 2 and connected with the circuit board 5, and the other end of the spring cable 3 is connected with the connector 4, the connector 4 is connected with the relay of the cab turnover system through the wire or cable;It has the advantages of easy operation, flexible use and stronger protection, the spring cable uses the spring cable with 4:1 extension, that is, saves the installation space, provides enough operation space, and the spring cable selects the flame-retardant material, this design is used in the cab turnover system to solve the existing switch operation rigid, low safety problem, improves the safety, high protection and operation flexibility of button switch.

[0021] The handle 2 comprises an upper cover 21 for installing the button switch 1, a lower cover 22, a shell 23, and a waterproof joint 24, a middle cover 25 for threadedly connecting the upper cover 21 and the lower cover 22 is arranged between the upper cover 21 and the lower cover 22, the middle cover 25 is made of light-transmitting material and corresponds to the indicator lamp 6 on the circuit board 5; the indicator lamp is bright when the switch is closed to turn on the circuit, showing that the device is working.

[0022] The upper cover 21 is provided with a waterproof rubber cap 26 covering the button switch 1, having the advantages of good sealing property and stable working.

[0023] The base 7 for installing the handle 2 is further provided with clamping portions 71 clamping and fixing the handle 2, and can be placed on the base when not in use and can ensure stability after being clamped by the clamping portions.

[0024] In the description of the present application, it should be pointed out that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0026] Skilled persons should know that although the present application has been described according to the above specific embodiments, the application idea of the present application is not limited to this application, any modification using the application idea of the present application will be included in the protection scope of the present patent.

Claims

1. A switch assembly comprising a push button switch (1), a handle (2), a spring cable (3) and a connector (4), the push button switch (1) being arranged on the handle (2), characterized in that: The handle (2) is internally provided with a circuit board (5) connected with the button switch (1) and the spring cable (3), the circuit board (5) is provided with an indicating lamp (6), a resistor (9) and a thermal protection module (8), and the handle (2) is integrally filled with glue.

2. The switch assembly of claim 1, wherein: The thermal protection module (8) is a thermistor.

3. The switch assembly of claim 1, wherein: The indicating lamp (6) is an LED lamp arranged on both sides of the circuit board (5).

4. The switch assembly of claim 1, wherein: One end of the spring cable (3) is inserted into the handle (2) and connected with the circuit board (5), and the other end of the spring cable (3) is connected with the connector (4), and the connector (4) is connected with a relay of a cab rollover system through an electric wire or cable.

5. The switch assembly of claim 1, wherein: The handle (2) comprises an upper cover (21), a lower cover (22), an outer shell (23) and a waterproof joint (24), the upper cover (21) is used for mounting the button switch (1), a middle cover (25) is arranged between the upper cover (21) and the lower cover (22) and is threadedly connected with both, the middle cover (25) is made of a light-transmitting material and corresponds to the indicating lamp (6) on the circuit board (5).

6. The switch assembly of claim 5, wherein: The upper cover (21) is provided with a waterproof rubber cap (26) covering the button switch (1).

7. The switch assembly of claim 1, wherein: Further comprising a base (7) for mounting the handle (2), and clamping portions (71) are arranged on both sides of the base and clamp and fix the handle (2). Further comprising a base (7) for mounting the handle (2), and clamping portions (71) are arranged on both sides of the base and clamp and fix the handle (2).

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