Novel waterproof metal knob switch

Abstract

The utility model relates to the related technical field of switches, in particular to a novel waterproof metal knob switch which comprises a metal shell, a handle, a handle seat, V-shaped waterproof rubber, a cam, a left sliding block, a right sliding block, a limiting support, a spring, a PCBA (printed circuit board assembly), a support, a lamp base, a locked double partition plate and a triple piece assembly which can be assembled, and the V-shaped waterproof rubber is assembled between the handle seat and the metal shell. The handle seat provides a clamping groove assembling position, is not easy to fall off and good in waterproof effect, achieves the switch-on and switch-off performance through the cooperation of the cam and the sliding block and the externally applied rotating force value, can achieve self-locking or self-resetting, is high in use flexibility, is provided with a PCBA structure, is good in illumination color and voltage matching effect, and is higher in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field related to switches, in particular to a novel waterproof metal knob switch. Background Art

[0002] With the improvement of science and technology and living standards, people have higher and higher requirements for the protection performance, appearance and operation feel of knob switches. At present, most of the switches on the market are plastic knob switches, which are not beautiful in appearance. According to the structural configuration, the mechanical properties and self-reset performance of the knob are not reliable enough, and there are few switches with lights. Or neon lamps and LED lamps are assembled by welding, which is not stable enough, and the assembly is difficult, not easy to assemble automatically, and the waterproof performance of the switch does not meet customer requirements. For this reason, technical personnel in this field have proposed a new waterproof metal knob switch to solve the problems raised in the above background. Utility Model Content

[0003] The purpose of the utility model is to provide a novel waterproof metal knob switch to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A new waterproof metal knob switch, comprising:

[0006] Metal housing, fixed to the external mounting panel;

[0007] The handle seat is installed at the end of the metal shell, and the outer ring is interference-fitted with a V-shaped waterproof rubber, which cooperates with the metal shell to make the switch waterproof and sealed;

[0008] A handle, assembled at one end of the handle base;

[0009] The V-shaped waterproof rubber is interference-fitted between the handle base and the metal housing to provide waterproof performance for the inside of the switch.

[0010] The cam is installed at the other end of the handle seat to provide a running track for the left and right sliders to achieve self-locking or self-resetting of the switch;

[0011] The limit bracket is assembled in the metal housing and provides an assembly position for the left slider, the right slider and the spring;

[0012] The left slider is assembled in the limit bracket, and together with the limit bracket, provides an assembly position for the spring, and turns according to the knob, along the running track provided by the cam, to realize the conduction and disconnection of the switch;

[0013] The right slider is assembled in the limit bracket, and together with the limit bracket, provides an assembly position for the spring, and turns according to the knob, along the running track provided by the cam, to realize the conduction and disconnection of the switch;

[0014] The spring is assembled in the limit bracket to provide power for the return of the left slider and the right slider;

[0015] PCBA, which is welded to the lamp pin on the bracket, provides the light-emitting function for the switch;

[0016] The bracket has lamp feet on both sides to provide stability for the lamp foot assembly, and the top provides an assembly position for the PCBA. There is a card slot in the middle of the bracket, which is used to assemble the triple-joint assembly.

[0017] The lamp foot has good conductivity and wear resistance. The top structure is directly connected to the PCBA to realize the switch lighting function, and the exposed contact foot is connected to the external circuit;

[0018] The locked double partition is assembled in the card slot to provide an assembly position for the triple-piece assembly. The lower end is engraved to provide instructions for the normally open and normally closed switches.

[0019] As a further solution of the utility model: the triple component includes a moving contact piece assembly, a moving support and a tension spring. The triple component realizes the switch on and off functions through mechanical movement, and the external leakage contact pin of the triple component is connected to the external circuit.

[0020] As a further solution of the utility model: the moving contact piece assembly is a riveted moving contact, and the moving contact piece assembly has good conductivity and wear resistance, ensuring the electrical performance requirements of the knob switch.

[0021] As a further solution of the utility model: the dynamic support is used to receive the power provided by the slider, and the dynamic support cooperates with the tension spring to realize the on-off function of the switch.

[0022] As a further solution of the utility model: the tension spring has good elasticity, and the tension spring provides power for the switch to be turned on and off.

[0023] The utility model has the following benefits:

[0024] 1. The switch is provided with a V-shaped waterproof rubber, which is assembled between the handle seat and the metal shell. The handle seat provides a slot assembly position. The waterproof rubber is not easy to fall out and can be interference fit with the metal shell, thereby preventing water from entering the switch. This makes the switch more stable and excellent in waterproof performance, low cost, simple and convenient assembly process, and suitable for automated assembly.

[0025] 2. The knob switch is matched with a cam and a slider, and the external rotation force is applied to achieve the performance of switch on and off. The switch can be self-locking or self-resetting, single-pole or double-pole, three-position or two-position according to customer needs, with switch diversity.

[0026] 3. PCBA structure and LED light emission are adopted, the light source has stable quality, long life, low power consumption, and can realize SMT automated production, improve production efficiency and reduce defective rate. The lighting color and voltage can be arbitrarily matched according to needs, and the use flexibility is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the use of the rotating handle in the embodiment of the utility model.

[0028] Figure 2 The figure is a schematic diagram of the installation of the V-shaped waterproof rubber in the embodiment of the utility model.

[0029] Figure 3 It is a schematic diagram of the on-off structure in the embodiment of the utility model.

[0030] Figure 4 It is a schematic diagram of lighting in an embodiment of the utility model.

[0031] Figure 5 It is an exploded view of the overall structure of an embodiment of the utility model.

[0032] Figure 6 It is a cross-sectional view of a switch according to an embodiment of the present utility model.

[0033] Figure 7 Schematic diagram of circuit characteristics of an embodiment of the utility model.

[0034] In the figure: 1. handle, 2. handle seat, 3. V-shaped waterproof rubber, 4. cam, 5. limit bracket, 6. right slider, 7. left slider, 8. spring, 9. O-ring, 10. metal shell, 11. fastening nut, 12. plastic shell, 13. PCBA, 14. bracket, 15. lamp foot, 16. locked double partition, 17. moving contact, 18. moving contact piece, 19. tension spring, 20. moving support, 21. static contact, 22. triple-piece assembly. DETAILED DESCRIPTION

[0035] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0036] Example 1: Please refer to Figures 1 to 7 , a new waterproof metal knob switch, including:

[0037] A metal housing 10 is fixed to an external mounting panel;

[0038] The plastic shell 12, the head is assembled in the metal shell 10, and the appearance can be selected in different colors according to requirements;

[0039] The O-ring 9 is tightly fitted on the head of the metal housing 10 and cooperates with the fastening nut 11 to ensure that the switch is assembled and fastened on the installation panel without loosening;

[0040] The handle seat 2 is installed at the end of the metal shell 10, and the outer ring is interference-fitted with a V-shaped waterproof rubber 3, which cooperates with the metal shell 10 to make the switch waterproof and sealed;

[0041] The V-shaped waterproof rubber 3 is interference-fitted between the handle base 2 and the metal housing 10 to provide waterproof performance for the interior of the switch;

[0042] A handle 1 is assembled on one end of a handle base 2;

[0043] The cam 4 is mounted on the other end of the handle base 2 to provide a running track for the left slider 7 and the right slider 6 to realize the self-locking or self-restoring of the switch;

[0044] The limit bracket 5 is assembled in the metal housing 10 to provide an assembly position for the left slider 7, the right slider 6 and the spring 8;

[0045] The left slider 7 is assembled in the limit bracket 5, and together with the limit bracket 5, provides an assembly position for the spring 8, and according to the rotation of the knob, along the running track provided by the cam 4, the switch is turned on and off;

[0046] The right slider 6 is assembled in the limit bracket 5, and together with the limit bracket 5, provides an assembly position for the spring 8, and rotates according to the knob, along the running track provided by the cam 4, to realize the conduction and disconnection of the switch;

[0047] The spring 8 is assembled in the limit bracket 5 to provide power for the return of the left slider 7 and the right slider 6;

[0048] PCBA13 is welded and connected to the lamp pin 15 on the bracket 14 to provide a lighting function for the switch;

[0049] The bracket 14 has lamp pins 15 mounted on both sides to provide stability for the assembly of the lamp pins 15, and the top provides an assembly position for the PCBA 13. The bracket 14 has a slot in the middle for assembling the triple-joint assembly 22.

[0050] The lamp pin 15 has good conductivity and wear resistance, and the top structure is directly connected to the PCBA 13 to realize the switch lighting function, and the exposed contact pin is connected to the external circuit;

[0051] The locked double partition 16 is assembled in the card slot to provide an assembly position for the triple-joint assembly 22, and the lower end is engraved to provide instructions for the normally open and normally closed switches.

[0052] The three-piece assembly includes a moving contact piece 18, a moving support 20 and a tension spring 19. The three-piece assembly realizes the switch on and off functions through mechanical movement. The external contact foot of the three-piece assembly is connected to the external circuit. The moving contact piece 18 assembly is a riveted moving contact 17. The moving contact piece 18 assembly has good conductivity and wear resistance to ensure the electrical performance requirements of the knob switch. The moving support 20 is used to receive the power provided by the slider. The moving support 20 cooperates with the tension spring 19 to realize the switch on and off function. The tension spring 19 has good elasticity and provides power for the switch on and off.

[0053] Assembly process:

[0054] 1. Press the handle 1 into the handle seat 2, and then put the V-shaped waterproof rubber 3 on the outer ring of the handle seat 2 to form the handle 1 assembly;

[0055] 2. The metal housing 10 and the plastic housing 12 are press-fitted and spot-riveted to prevent rotation;

[0056] 3. Install the lamp pin 15 into the mounting hole of the bracket 14, and make sure it is in place without falling off. Then weld the PCBA 13 to the lamp pin 15;

[0057] 4. The moving contact 17 is riveted to the moving contact piece 18, and the static contact 21 is riveted to the triple-joint component. Then, the assembly is assembled with the tension spring 19 and the moving support 20 into a triple-joint component 22. The triple-joint component 22 is assembled on both sides of the locked double partition 16, and finally assembled at the corresponding position of the bracket 14 to form a bracket 14 assembly, ensuring that the assembly does not loosen or fall off;

[0058] 5. Assemble the limit bracket 5 on the bracket 14, assemble the right slider 6 and the left slider 7 into the limit bracket 5, assemble them in place, and assemble the spring 8 between the slider and the limit bracket 5, ensuring that both ends of the spring 8 are assembled on the corresponding pillars;

[0059] 6. Assemble the cam 4 from the bottom of the plastic housing 12 upwards, paying attention to the assembly direction, and then assemble the handle 1 assembly from the top of the metal housing 10 downwards, and buckle it with the cam 4. Note that both sides must be buckled in place. Finally, assemble the bracket 14 assembly into the plastic housing 12. The bracket 14 is fastened to the housing, and the buckling position is completely buckled, and the switch as a whole is not loose;

[0060] 7. Finally, install the fastening nut 11 and the O-ring 9 onto the metal housing 10 to complete the switch assembly.

[0061] Example 2: See Figure 6On the basis of the first embodiment, the force provided by the clockwise rotation of the handle 1 drives the cam 4 to rotate, and the slider also runs from high to low according to the running track provided by the cam 4 under the rotation of the cam 4, which also makes the lower end of the slider begin to press down the dynamic support 20. When the slider runs to the lowest end, the dynamic support 20 cooperates with the tension spring 19, and the electrical performance of the switch is converted, the normally open is connected, and the normally closed is disconnected. When the applied force is removed, the slider runs to the cam 4 position, and the switch is self-locking; when the handle 1 is rotated counterclockwise, the slider disengages from the cam 4 position, and the slider moves from low to high under the running track of the cam 4. The dynamic support 20 is reset under the action of the tension spring 19, and the electrical performance of the switch is converted again.

[0062] See also Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 7 When the switch handle 1 is rotated clockwise, the two normally closed contacts are disconnected and the two normally open contacts are connected, so that the circuit realizes the on-off conversion, and the switch slider also completes the self-locking function under the running track provided by the cam 4; when the switch handle 1 is rotated counterclockwise, the slider will leave the self-locking mode and reset according to the running track provided by the cam 4, and the contacts will return to their original positions again, so that the circuit completes the conversion again, thereby meeting the switch electrical performance. The lamp foot 15 is directly connected to the PCBA13 through the column hole to enable the switch to achieve lighting performance.

[0063] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new waterproof metal knob switch, characterized in that: include: Metal housing, fixed to the external mounting panel; The handle seat is installed at the end of the metal shell, and the outer ring is interference-fitted with a V-shaped waterproof rubber, which cooperates with the metal shell to make the switch waterproof and sealed; A handle, assembled at one end of the handle base; V-shaped waterproof rubber, interference fit between the handle base and the metal housing, provides waterproof performance for the inside of the switch; The cam is installed at the other end of the handle seat to provide a running track for the left and right sliders to achieve self-locking or self-resetting of the switch; The limit bracket is assembled in the metal housing and provides an assembly position for the left slider, the right slider and the spring; The left slider is assembled in the limit bracket, and together with the limit bracket, provides an assembly position for the spring, and turns the knob to realize the on and off of the switch under the running track provided by the cam; The right slider is assembled in the limit bracket, and together with the limit bracket, provides an assembly position for the spring, and rotates according to the knob, and realizes the conduction and disconnection of the switch under the running track provided by the cam; The spring is assembled in the limit bracket to provide power for the return of the left slider and the right slider; PCBA, which is welded to the lamp pin on the bracket, provides the light-emitting function for the switch; The bracket has lamp feet on both sides to provide stability for the lamp foot assembly, and the top provides an assembly position for the PCBA. There is a card slot in the middle of the bracket, which is used to assemble the triple-joint assembly. The lamp foot is conductive and wear-resistant. The top structure is directly connected to the PCBA to realize the switch lighting function. The exposed contact foot is connected to the external circuit. The locked double partition is assembled in the card slot to provide an assembly position for the triple-piece assembly. The lower end is engraved to provide instructions for the normally open and normally closed switches.

2. A novel waterproof metal knob switch according to claim 1, characterized in that: The triple-joint component comprises a moving contact piece assembly, a moving support and a tension spring. The triple-joint component realizes the switch on and off functions through mechanical movement, and the external leakage contact pin of the triple-joint component is connected to an external circuit.

3. A novel waterproof metal knob switch according to claim 2, characterized in that: The moving contact piece assembly is a riveted moving contact, and the moving contact piece assembly has conductivity and wear resistance, thereby ensuring the electrical performance requirements of the knob switch.

4. A novel waterproof metal knob switch according to claim 2, characterized in that: The dynamic support is used to receive the power provided by the slider, and the dynamic support cooperates with the tension spring to realize the on-off function of the switch.

5. The novel waterproof metal knob switch according to claim 2 is characterized in that: The tension spring is retractable and provides power for the switch to be turned on and off.

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