Control key device of control panel

Abstract

The utility model relates to a control key device of a control panel, which comprises the following components: a base body which defines an accommodating groove; the key board is detachably arranged in the accommodating groove and comprises a circuit board, a control switch and an electric combination part, the control switch and the electric combination part are electrically connected with the circuit board respectively, and the electric combination part is detachably and electrically connected with a control circuit board; and the key unit is detachably arranged on the seat body and seals an opening of the accommodating groove, and the key plate is arranged between the key unit and the seat body. Therefore, the key board and the key unit can be directly detached from the control circuit board, and assembly and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to a control key device, in particular to a technical improvement of a control key device of a control panel. Background Art

[0002] Equipment such as machine tools and processing machines are typically equipped with dedicated mechanical control panels, typically featuring multiple control keys. Conventional control key devices include a key assembly secured to a circuit board. However, the key assembly is susceptible to aging, breakage, loosening, and other issues, leading to circuit board or light source failures and requiring repair. Because the key assembly is secured to the circuit board, repairs require the entire circuit board to be removed, making repairs more difficult and inconvenient.

[0003] Therefore, it is necessary to provide a novel and progressive control key device for a control panel to solve the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a control key device of a control panel, which can quickly detach the key plate and the key unit.

[0005] To achieve the above-mentioned objectives, the present invention provides a control key device for a control panel, which includes: a base body, which surrounds a receiving groove; a keypad, which is detachably arranged in the receiving groove, the keypad including a circuit board, a control switch and an electrical connection portion, the control switch and the electrical connection portion are respectively electrically connected to the circuit board, and the electrical connection portion is provided for detachable electrical connection to a control circuit board; and a key unit, which is detachably arranged on the base body and closes an opening of the receiving groove, and the keypad is arranged between the key unit and the base body.

[0006] Preferably, the base is provided on a substrate having a through hole. The outer side of the base is provided with a buckle portion. The base passes through the through hole and is detachably buckled to the substrate by the buckle portion.

[0007] Preferably, a water stop ring is sleeved on the outer periphery of the base body, and the water stop ring abuts against the base plate.

[0008] Preferably, an annular groove is provided on the outer periphery of the base body, and the water stop ring is clamped in the annular groove and at least partially protrudes from the annular groove.

[0009] Preferably, the device further comprises a cover, which covers the control switch and is located between the key unit and the key board.

[0010] Preferably, the cover is made of a deformable waterproof material, the button unit is further provided with a pressing portion, and the cover is provided with a protrusion protruding toward the pressing portion, and the protrusion corresponds to the control switch.

[0011] Preferably, the keypad further extends a plurality of spring arms and a pressing surface toward the cover, the plurality of spring arms are detachably snapped onto the circuit board, and the pressing surface presses down a top surface of the cover.

[0012] Preferably, the outer periphery of the key unit is further provided with an annular groove, and the annular groove is provided with a waterproof ring, and the waterproof ring can be placed against an inner peripheral wall of the receiving groove.

[0013] Preferably, the button unit includes a movable part and a light guide part, the light guide part is provided with a pressing portion protruding toward the same side, the movable part is penetrated by a through hole, the movable part is combined with the circuit board, the pressing portion can movably penetrate the through hole and can selectively press the control switch.

[0014] Preferably, the base is provided on a substrate, the substrate is provided with a through hole, the outer side of the base is provided with a snap portion, the base is passed through the through hole and is detachably snapped to the substrate by the snap portion; the snap portion includes two spring fasteners, and the two spring fasteners are elastically swingably provided on the base; the two spring fasteners are snapped to the substrate respectively; a water stop ring is sleeved on the outer periphery of the base, and the water stop ring is abutted against the substrate; an annular groove is provided on the outer periphery of the base, the water stop ring is snapped in the annular groove and at least partially protrudes from the annular groove; the key plate also extends toward the direction of the cover body, the multiple spring fastener arms and a pressing surface, the multiple spring fastener arms are detachably snapped to the circuit board, and the pressing surface presses down a top surface of the cover body; the opposite sides of the circuit board are each provided with a convex portion and an adjacent In at least one through slot of the protrusion, each of the spring arms passes through at least one of the through slots and is inverted on the circuit board; an annular groove is further provided on the outer periphery of the key unit, and the annular groove is provided with a waterproof ring, and the waterproof ring can be ringed against an inner wall of the receiving groove; the key unit includes a movable part and a light guide part, and the light guide part is provided with a pressing part protruding toward the same side, and the movable part is penetrated by a through hole, and the movable part is combined with the circuit board, and the pressing part can be movably penetrated by the through hole and can selectively press the control switch; one end of the base body is provided with a through hole connected to the receiving groove, and the electrical connection part is connected to the control circuit board through the through hole; the electrical connection part includes a plurality of electrical pins, and the plurality of electrical pins can be detachably electrically plugged into an electrical socket of the control circuit board.

[0015] The advantages of the present invention are:

[0016] The control key device of the control panel provided by the utility model can be quickly detached from the key plate and the key unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of an embodiment of the present utility model.

[0018] Figure 2 This is an exploded view of an embodiment of the present invention.

[0019] Figure 3 This is another exploded view of an embodiment of the present invention.

[0020] Figure 4 It is a cross-sectional view of an embodiment of the present utility model.

[0021] Figure 5 This is another cross-sectional view of an embodiment of the present invention.

[0022] Figure 6 for Figure 5 Exploded diagram of . DETAILED DESCRIPTION

[0023] The following examples are merely illustrative of possible implementations of the present invention and are not intended to limit the scope of protection to be provided by the present invention. The word "one" or "at least one" preceding a noun herein does not limit the quantity and may be "plural" depending on the needs. Such changes in quantity also fall within the scope of protection to be provided, and are therefore clearly stated.

[0024] Please refer to Figures 1 to 6 , which shows an embodiment of the present invention. The control key device 1 of the control panel of the present invention includes: a base 10, a key board 20 and a key unit 30.

[0025] The base 10 encloses a receiving groove 11; the keypad 20 is removably mounted within the receiving groove 11. The keypad 20 includes a circuit board 21 (e.g., a printed circuit board (PCB)), a control switch 22, and an electrical connection 23. The control switch 22 and the electrical connection 23 are each electrically connected to the circuit board 21. The electrical connection 23 is removably electrically connected to a control circuit board 2. The key unit 30 is removably mounted on the base 10 and closes an opening 31 of the receiving groove 11. The keypad 20 is disposed between the key unit 30 and the base 10. The keypad 20 is installed in and removed from the receiving groove 11 through the opening 31.

[0026] Specifically, the electrical connection portion 23 includes a plurality of electrical pins 231 . The plurality of electrical pins 231 are detachably and electrically plugged into a plurality of electrical connection holes of an electrical socket 5 of the control circuit board 2 .

[0027] A through hole 14 communicating with the receiving groove 11 is defined at one end of the base 10 . The electrical connection portion 23 passes through the through hole 14 and is connected to the control circuit board 2 .

[0028] In this way, the keypad 20 and the key unit 30 can be directly removed or installed on the control circuit board 2 without using locking tools, thereby facilitating maintenance and inspection.

[0029] The base 10 is provided on a substrate 3, and the substrate 3 is provided with a through hole 4. The outer side of the base 10 is provided with a snap-on portion 12. The base 10 is passed through the through hole 4 and is detachably snapped on the substrate 3 by the snap-on portion 12. The substrate 3 can be an aluminum plate or a plate made of other materials. Specifically, the snap-on portion 12 includes two elastic fasteners 121, and the two elastic fasteners 121 are elastically swingably provided on the base 10; the two elastic fasteners 121 are snapped on the substrate 3 respectively. In this embodiment, each of the elastic fasteners 121 is integrally formed with the base 10. Thereby, when the base 10 passes through the through hole 4, each of the elastic fasteners 121 is compressed and retracted, and after the pressure is released, it is elastically buckled on the substrate 3, so as to stabilize the positioning and facilitate disassembly.

[0030] A water stop ring 40 is mounted on the outer periphery of the base 10. This water stop ring 40 abuts against the base plate 3 to prevent water from leaking into the control circuit board 2 and maintains stable positioning. The water stop ring 40 is a rubber ring. Preferably, an annular groove 13 is defined on the outer periphery of the base 10. The water stop ring 40 is secured within the groove 13 and at least partially protrudes from the groove 13, ensuring stable positioning of the water stop ring 40 within the base 10.

[0031] The outer periphery of the key unit 30 is further provided with an annular groove 34 , and the annular groove 34 is provided with a waterproof ring 60 . The waterproof ring 60 can be placed around an inner wall of the receiving groove 11 to achieve a waterproof effect and prevent liquid from flowing into the receiving groove 11 and damaging the circuit board 21 .

[0032] The control key device 1 of the control panel further includes a cover 50, which covers the control switch 22 and is located between the key unit 30 and the keypad 20. The cover 50 is made of a deformable waterproof material. In this embodiment, the cover 50 is made of silicone. The key unit 30 further includes a pressing portion 32. The cover 50 is provided with a protrusion 33 protruding toward the pressing portion 32. The protrusion 33 corresponds to the control switch 22. The pressing portion 32 can press down on the protrusion 33, causing the protrusion 33 to deform and thereby press the control switch 22. Preferably, the keypad 20 further includes a plurality of spring arms 24 and a pressing surface 25 extending toward the cover 50. The plurality of spring arms 24 are detachably snapped onto the circuit board 21, and the pressing surface 25 presses down on a top surface of the cover 50. Specifically, the raised portion 33 forms a chamber 37 that accommodates the key unit 30. Therefore, the key unit 30 can be tightly pressed against the cover 50 in the circumferential direction, achieving a good sealing and waterproof effect. Furthermore, the control switch 22 and at least a portion of the circuit board 21 can be covered and protected by the cover 50, preventing water from leaking or being damaged.

[0033] Preferably, two opposite sides of the circuit board 21 are each provided with a protrusion 211 and at least one through-slot 212 adjacent to the protrusion 211. Each of the spring arms 24 passes through at least one of the through-slots 212 and buckles the circuit board 21 to increase the friction between them and prevent them from detaching from the base 10. In addition, the keypad 20 can be stably positioned with the circuit board 21.

[0034] The key unit 30 includes a movable member 35 and a light guide member 36. The light guide member 36 has a pressing portion 32 protruding toward the same side. The movable member 35 has a through-hole 351 extending therethrough. The movable member 35 is coupled to the circuit board 21. The pressing portion 32 can movably pass through the through-hole 351 and selectively press the control switch 22. The light guide member 36 can transmit light from a light-emitting element on the keypad 20.

[0035] In the control key device 1 of the control panel of the present invention, the electrical connection portion 23 of the keypad 20 can be directly detached from the control circuit board 2 to achieve a quick-detachment effect.

[0036] The above is a preferred embodiment of the present invention and the technical principles used therein. For those skilled in the art, any obvious changes such as equivalent transformations, simple replacements, etc. based on the technical solution of the present invention, without departing from the spirit and scope of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A control key device for a control panel, characterized in that: include: A base, surrounding a container; a keypad, detachably disposed in the receiving slot, comprising a circuit board, a control switch, and an electrical connection portion, wherein the control switch and the electrical connection portion are electrically connected to the circuit board, respectively, and the electrical connection portion is detachably electrically connected to a control circuit board; and A key unit is detachably arranged on the base and closes an opening of the receiving groove. The key plate is arranged between the key unit and the base.

2. The control key device of the control panel according to claim 1, characterized in that: The base is provided on a substrate with a through hole. A buckle portion is provided on the outer side of the base. The base passes through the through hole and is detachably buckled on the substrate by the buckle portion.

3. The control key device of the control panel according to claim 2, characterized in that: A water stop ring is sleeved on the outer periphery of the seat body, and the water stop ring abuts against the base plate.

4. The control key device of the control panel according to claim 3, characterized in that: An annular groove is provided on the outer periphery of the seat body. The water stop ring is clamped in the annular groove and at least partially protrudes from the annular groove.

5. The control key device of the control panel according to claim 1, characterized in that: The invention further comprises a cover body, which covers the control switch and is located between the key unit and the key board.

6. The control key device of the control panel according to claim 5, characterized in that: The cover is made of a deformable waterproof material. The button unit is further provided with a pressing portion. The cover is provided with a convex portion protruding toward the pressing portion, and the convex portion corresponds to the control switch.

7. The control key device of the control panel according to claim 5, characterized in that: The keypad further extends a plurality of spring arms and a pressing surface toward the cover body. The plurality of spring arms are detachably snapped onto the circuit board, and the pressing surface presses down a top end surface of the cover body.

8. The control key device of the control panel according to claim 1, wherein: The outer periphery of the key unit is further provided with an annular groove, and the annular groove is provided with a waterproof ring, and the waterproof ring can be annularly pressed against an inner peripheral wall of the containing groove.

9. The control key device of the control panel according to claim 1, wherein: The key unit includes a movable part and a light guide part. The light guide part is provided with a pressing portion protruding toward the same side. The movable part is penetrated by a through hole. The movable part is combined with the circuit board. The pressing portion can movably penetrate the through hole and selectively press the control switch.

10. The control key device of the control panel according to claim 6, characterized in that: The base is provided on a substrate, which is provided with a through hole, and a snap portion is provided on the outer side of the base. The base is passed through the through hole and is detachably snapped to the substrate by the snap portion; the snap portion includes two spring fasteners, and the two spring fasteners are elastically swingably provided on the base; the two spring fasteners are snapped to the substrate respectively; a water stop ring is sleeved on the outer periphery of the base, and the water stop ring is abutted against the substrate; an annular groove is provided on the outer periphery of the base, and the water stop ring is clamped in the annular groove and at least partially protrudes from the annular groove; the key plate also extends a plurality of snap arms and a pressing surface toward the direction of the cover body, and the plurality of snap arms are detachably snapped to the circuit board, and the pressing surface presses down a top surface of the cover body; the opposite sides of the circuit board are each provided with a convex portion and an adjacent portion. At least one through slot of the protrusion, each of the spring arms passes through at least one of the through slots and is inverted on the circuit board; the outer periphery of the key unit is further provided with an annular groove, the annular groove is provided with a waterproof ring, and the waterproof ring can be ringed against an inner wall of the receiving groove; the key unit includes a movable part and a light guide part, the light guide part is provided with a pressing part protruding toward the same side, the movable part is penetrated by a through hole, the movable part is combined with the circuit board, the pressing part can movably penetrate the through hole and can selectively press the control switch; one end of the base body is provided with a through hole connected to the receiving groove, the electrical connection part passes through the through hole to connect to the control circuit board; the electrical connection part includes a plurality of electrical pins, and the plurality of electrical pins can be detachably electrically plugged into an electrical socket of the control circuit board.

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