CN220832693U - Coffee machine with waterproof key structure - Google Patents

Abstract

The utility model discloses a coffee machine with a waterproof key structure, wherein an internal tact switch unit is aligned with a key assembly port; the edge of the key assembly port is provided with a water blocking convex edge, and the water blocking convex edge at least surrounds the upper part of the key assembly port; the key assembly opening is provided with a key module which comprises a module bottom shell and at least one key body, wherein a water retaining edge is formed at the edge of the module bottom shell, an edge-covering inner groove is formed at the inner side of the water retaining edge, the module bottom shell is embedded and assembled in the key assembly opening, the water retaining edge is tightly matched with the outer shell, and the edge-covering inner groove is wrapped on the water retaining convex edge; the key body movable mounting is equipped with the elastic component that resets between key body and the module drain pan, and the inboard shaping of key body has the button to support the pole, and the button supports the inward extension setting of pole to with dab the switch unit and support the trigger cooperation. The key module is de-electronized, the design of the water retaining edge can reduce the invasion of water liquid into the machine, and the waterproof performance and the service life of the coffee machine are improved.

Description

Coffee machine with waterproof key structure

Technical Field

The utility model relates to the technical field of coffee machines, in particular to a coffee machine with a waterproof key structure.

Background

The coffee machine generally comprises a control panel, a control circuit, a water tank, a water pump, a heater and an extraction cavity, wherein the control panel is arranged outside the coffee machine body, and the control circuit is respectively and electrically connected with the control panel, the water pump and the heater to heat the water tank and extract coffee from the coffee machine by a user. In the prior art, in order to prevent external water from invading the inside of the coffee machine and damaging electrical devices such as a control circuit, a control panel is often a film type keyboard, namely, an assembly port is arranged on a shell of the coffee machine, a plurality of tact switches are fixedly arranged in the assembly port, each tact switch is connected with the control circuit through wires, then the control circuit is coated on each tact switch through a plastic film, the assembly port is sealed at the same time, and corresponding indication patterns are printed on the plastic film. However, after the film-type keyboard is used for a long time, the plastic film is easily penetrated by the tact switch to destroy the waterproofness and the indication pattern, and after the plastic film is destroyed, the external water liquid easily invades into the coffee machine, so that the tact switch and the electric elements in the coffee machine are damaged.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model aims to provide the coffee machine with the waterproof key structure, which realizes the de-electronization of the key structure, allows wet water wiping, reduces the flow of water into the coffee machine through the key assembly port, improves the waterproof performance of the coffee machine and prolongs the service life of the coffee machine.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the coffee machine with the waterproof key structure comprises an outer shell, wherein the outer shell is provided with a key assembly port, a PCB (printed circuit board) is fixedly arranged in the outer shell, and is provided with at least one tact switch unit which is aligned with the key assembly port; the edge of the key assembly port is provided with a water blocking convex edge, and the water blocking convex edge at least surrounds the upper part of the key assembly port; the key assembly opening is provided with a key module which comprises a module bottom shell and at least one key body, wherein a water retaining edge is formed at the edge of the module bottom shell, an edge-covering inner groove is formed at the inner side of the water retaining edge, the module bottom shell is embedded and assembled in the key assembly opening, the water retaining edge is tightly matched with the outer shell, and the edge-covering inner groove is wrapped on the water retaining convex edge; the key body movable mounting is equipped with the elastic component that resets between key body and the module drain pan, and the inboard shaping of key body has the button to support the pole, and the button supports the inward extension setting of pole to with dab the switch unit and support the trigger cooperation.

In a further technical scheme, two sides of the module bottom shell are respectively provided with a side buckling leg in a forming mode, the outer sides of the side buckling legs are provided with inverted buckling bulges in a forming mode, and the inverted buckling bulges are in buckling connection and fit with the key assembly ports; the middle position of the module bottom shell is provided with a middle buckling foot, the side part of the middle buckling foot is provided with another back buckling bulge, a buckling opening is formed in the corresponding position of the PCB, the middle buckling foot is movably inserted into the buckling opening, and the back buckling bulge is in buckling connection with the buckling opening.

In a further technical scheme, the inner side of the module bottom shell is also provided with at least one rubber head positioning opening; the side part of each tact switch unit is respectively provided with a soft rubber head supporting rod, and the end part of the rubber head supporting rod movably supports against the corresponding rubber head positioning opening.

In a further technical scheme, two key body assembly cavities with the same structure are respectively formed on the front side of the module bottom shell, each key body assembly cavity is respectively provided with a key body, the bottom of each key body assembly cavity is respectively provided with a supporting rod through hole, and a key supporting rod movably penetrates through the supporting rod through hole and supports against the supporting rod to trigger a corresponding tact switch unit; the reset elastic piece comprises a compression spring, the compression spring is sleeved on the key supporting rod, one end of the compression spring is connected with the key body, and the other end of the compression spring is connected with the module bottom shell.

In a further technical scheme, two sides of the key body assembly cavity are respectively provided with a key body connecting part in a forming way, the key body connecting part comprises a formed connecting cavity and a shaft hole, and the shaft hole is formed at the outer side of the bottom of the connecting cavity; the two sides of the key body are respectively provided with a connecting rod, the outer sides of the end parts of the connecting rods are provided with a shaft head in a forming mode, when the key body is assembled in the corresponding key body assembling cavity, the connecting rods on the two sides are respectively movably inserted into the corresponding connecting cavities, and the shaft heads are hinged with the shaft holes.

In a further technical scheme, a waterproof structure is clamped between the water retaining edge and the outer shell, and the waterproof structure comprises a sealing ring or formed waterproof glue.

In a further technical scheme, the outer surface of the key body is provided with a baking finish surface layer structure.

In a further technical scheme, the outside shaping of the key body has arcwall face form to press the portion, and the press portion of the key body under the initial state is from top to bottom outwards protrusion setting gradually, the protruding height that the manger plate was bordured is higher than the topside of press portion at least.

By adopting the structure, compared with the prior art, the utility model has the following advantages: the utility model provides a coffee machine with a waterproof key structure, which is characterized in that a light touch switch unit is arranged on a PCB (printed circuit board) in a machine body through improvement of a key module, so that the key module is de-electronized, the probability that water liquid directly wets the light touch switch unit is reduced, and the service life is prolonged; the edge of the key assembly port is provided with a water retaining convex edge, the outer edge of the key module is provided with a convex water retaining edge, and after the key module is assembled, a wrapped water retaining convex edge structure is formed, so that water left along the machine body can be further prevented from invading the interior through the key assembly port, and the waterproof performance of the coffee machine is further improved; the press keys arranged on the machine body in a side-mounted manner conform to the stress state of the machine and the desktop, and the risk of turning over or pushing the machine is avoided.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an exploded schematic view of the present utility model.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a schematic structural diagram of a key module according to the present utility model.

Fig. 5 is an exploded view of a key module according to the present utility model.

Fig. 6 is a schematic structural view of a module bottom case in the present utility model.

Detailed Description

The following are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model.

In order to solve the key waterproof problem of the coffee machine in the prior art, the inventor proposes a design goal of the key module for removing the electronics, namely a tact switch unit originally arranged in the key module is directly welded to an internal PCB, the key module is used as a pressing linkage structure for removing the electronics, so that wet water wiping can be performed, the immersion risk of electric elements is reduced, the stability and the safety of the whole machine are improved, and the service life of the coffee machine is prolonged; in addition, in the coffee machine in the prior art, keys are arranged on the top of the machine body, long leads are needed for connecting the keys with a power panel, or the keys are horizontally assembled and embedded into the shell, so that horizontal force is needed to press the keys, and the risk of turning over the machine or pushing the machine exists. The coffee machine with the waterproof key structure provided by the utility model provides the waterproof key structure embedded into the side wall of the shell, and the piano type key is arranged on the side wall of the shell, so that the keys are pressed downwards, the stress state of the machine and a tabletop is met, and the risk of turning over or pushing the machine is avoided.

As shown in fig. 1 to 6, a coffee machine with a waterproof key structure comprises an outer casing 1, wherein a key assembly port 10 is formed in the outer casing 1, a PCB 11 is fixedly arranged in the outer casing 1, two tact switch units 12 are arranged on the PCB 11, and the tact switch units 12 are aligned with the key assembly port 10; the edge of the key assembly opening 10 is provided with a water retaining convex edge 101 in a forming mode, the water retaining convex edge 101 comprises an upper convex edge and a lower convex edge, the upper convex edge and the lower convex edge are respectively arranged in an extending mode around the key assembly opening 10, and the upper convex edge and the lower convex edge are respectively positioned on the upper side and the lower side of the key assembly 10; the key assembly port 10 is provided with a key module 2, which comprises a module bottom shell 21 and two key bodies 22, wherein a water blocking edge 211 is formed at the edge of the module bottom shell 21, an edge covering inner groove 2110 is formed at the inner side of the water blocking edge 211, the module bottom shell 21 is embedded and assembled in the key assembly port 10, the water blocking edge 211 is tightly matched with the outer shell 1, and the edge covering inner groove 2110 is wrapped on the water blocking convex edge 101; the key body 22 is movably arranged on the module bottom shell 21, a reset elastic piece is arranged between the key body 22 and the module bottom shell 21, a key supporting rod 221 is formed on the inner side of the key body 22, and the key supporting rod 221 extends inwards and is matched with the touch switch unit 12 in a supporting trigger manner; a side buckling leg 212 is respectively formed on two sides of the module bottom shell 21, a back buckling protrusion is formed on the outer side of the side buckling leg 212, and the back buckling protrusion is in buckling connection and matching with the key assembly port 10; the middle position of the module bottom shell 21 is formed with a middle buckling leg 213, the side part of the middle buckling leg 213 is formed with another back buckling bulge, a buckling opening 14 is formed at the corresponding position of the PCB 11, the middle buckling leg 213 is movably inserted into the buckling opening 14, and the back buckling bulge is in buckling connection and matching with the buckling opening 14.

The key module 2 provided in this embodiment is assembled through the buckle mode, of course also can carry out fixed assembly through connection modes such as bolts, not only is limited to buckle connection, and this kind of buckle connection mode can provide sufficient assembly stability for the key module 2, simultaneously, reduces the assembly degree of difficulty of equipment, shortens its production cycle, in addition, still makes things convenient for the user to change by oneself key module 2, easily promotes.

Since the key module 2 is provided at the lower portion of the side surface of the outer housing 1 below the water tank, when the coffee maker is operated, the water in the water tank is heated, boiling water easily overflows the water tank and falls down along the outer housing 1, and the water flows through the key fitting opening 10 and invades into the inside of the apparatus through the key fitting opening 10.

The key module 2 with the waterproof structure has the technical principle that: through the annular blocking structure formed by assembling the water retaining convex edge 101 and the water retaining edge 211, the inner edge groove 2110 on the inner side of the water retaining edge 211 is wrapped on the water retaining convex edge 101, and a compact blocking structure is formed, so that water falling along the outer casing 1 can be effectively prevented from invading the key assembly opening 10.

In addition, the electric appliance element easy to be damaged by wet water is the tact switch unit 12, the design of the key module 2 can realize the de-electronization, the tact switch unit 12 is directly arranged on the internal PCB 11, the key module 2 only serves the function of triggering linkage, and because a space is reserved between the PCB 11 and the key assembly port 10, water liquid can not directly soak and damage the tact switch unit 12 through the key module 2, and the waterproof performance and the service life of the device are further improved.

Specifically, two key body assembling cavities 210 with the same structure are respectively formed on the front side of the module bottom shell 21, each key body assembling cavity 210 is respectively provided with a key body 22, the bottom of each key body assembling cavity 210 is respectively provided with a supporting rod through hole 2210, and a key supporting rod 221 movably penetrates through the supporting rod through hole 2210 and supports against the corresponding tact switch unit 12; the reset elastic member comprises a compression spring 23, the compression spring 23 is sleeved on the key supporting rod 221, one end of the compression spring 23 is connected with the key body 22, and the other end is connected with the module bottom shell 21.

Specifically, a key body connecting portion is formed on two sides of the key body assembling cavity 210, the key body connecting portion includes a formed connecting cavity 2211 and an axle hole 2212, and the axle hole 2212 is formed on the outer side of the bottom of the connecting cavity 2211; two sides of the key body 22 are respectively provided with a connecting rod 222, the outer sides of the end parts of the connecting rods 222 are respectively provided with a shaft head, when the key body 22 is assembled in the corresponding key body assembling cavity 210, the connecting rods 222 at two sides are respectively movably inserted into the corresponding connecting cavities 2211, and the shaft heads are hinged with the shaft holes 2212.

The key body 22 in this embodiment is assembled in a hinged manner, the key supporting rod 221 inside the key body forms an inward arc-shaped movement track, and the end part of the key body just passes through the triggering part of the tact switch unit 12 to realize linkage triggering.

Specifically, two glue head positioning openings 2213 are further formed in the inner side of the module bottom shell 21; the side of each tact switch unit 12 is respectively provided with a soft rubber head supporting rod 13, and the end part of the rubber head supporting rod 13 movably supports against the corresponding rubber head positioning opening 2213. The rubber head supporting rod 13 has elastic restoration property, and has an outward elastic acting force on the module bottom shell 21, so that the stability of the buckle connection structure of the module bottom shell 21 can be improved.

In a preferred embodiment, the setting positions of the two glue head supporting rods 13 are respectively located above the corresponding tact switch units 12 and are located on the movement track of the key supporting rods 221 of the corresponding key body 22, the key supporting rods 221 are in trigger fit with the corresponding tact switch units 12, and meanwhile, the key supporting rods 221 are in abutting fit with the glue head supporting rods 13. By means of the design, a limit of a pressing stroke can be formed for the body building 22, damage caused by excessive pressing of the tact switch unit 12 is avoided, meanwhile, due to the soft rubber head supporting rod 13, an elastic reaction force can be formed for the key supporting rod 221, and touch experience of the key module 2 is improved.

Specifically, two sides of the interior of the module bottom case 21 are respectively formed with an inner supporting plate 214, and the inner supporting plate 214 is movably propped against the PCB. So as to improve the structural strength of the key module 2 and further improve the working stability of the key module 2.

Specifically, a waterproof structure is sandwiched between the water blocking edge 211 and the outer casing 1, and the waterproof structure includes a sealing ring or a molding waterproof adhesive. In this embodiment, before the key module 2 is assembled, the inner side edges of the edge-covered inner groove 2110 and the water retaining edge-covered 211 are coated with the waterproof glue, so that a formed waterproof glue structure is formed between the water retaining edge-covered 211 and the outer casing 1 of the assembled key module 2, and the waterproof performance of the key module 2 can be further improved.

Specifically, the outer surface of the key body 22 is provided with a varnish-baking finish structure. To form a functional indication and to improve the aesthetic appearance; the outer side of the key body 22 is formed with an arc-shaped pressing part, the pressing part of the key body 22 in an initial state is gradually and outwards protruded from top to bottom, and the protrusion height of the water retaining edge 211 is at least higher than the top edge of the pressing part. The pressing portion of the key body 22 in the present embodiment serves as a pressing contact portion of the key body 22, facilitating the downward pressing operation; the top edge of the pressing part is embedded in the water retaining edge 211, and is matched with the design of the shape of the arc surface of the water retaining edge, so that water is further prevented from invading the inner part of the outer shell 1 and the circuit board.

The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims (8)

1. The utility model provides a take coffee machine of waterproof button structure, includes outer casing (1), and button assembly mouth (10), its characterized in that have been seted up to outer casing (1): the inside of the outer shell (1) is fixedly provided with a PCB (11), the PCB (11) is provided with at least one tact switch unit (12), and the tact switch unit (12) is aligned with the key assembly port (10);

The edge of the key assembly opening (10) is provided with a water retaining convex edge (101), and the water retaining convex edge (101) at least surrounds the upper part of the key assembly opening (10);

The key assembly port (10) is provided with a key module (2) which comprises a module bottom shell (21) and at least one key body (22), wherein a water blocking edge (211) is formed at the edge of the module bottom shell (21), an edge covering inner groove (2110) is formed at the inner side of the water blocking edge (211), the module bottom shell (21) is embedded and assembled in the key assembly port (10), the water blocking edge (211) is tightly matched with the outer shell (1), and the edge covering inner groove (2110) is wrapped on the water blocking convex edge (101); the key body (22) is movably arranged on the module bottom shell (21), a reset elastic piece is arranged between the key body (22) and the module bottom shell (21), a key supporting rod (221) is formed on the inner side of the key body (22), and the key supporting rod (221) extends inwards and is matched with the touch switch unit (12) in a supporting triggering mode.

2. The coffee machine with a waterproof key structure as recited in claim 1, wherein: two sides of the module bottom shell (21) are respectively provided with a side buckling foot (212), the outer side of the side buckling foot (212) is provided with a back-off bulge, and the back-off bulge is in buckling connection and matching with the key assembly port (10); the middle position of the module bottom shell (21) is provided with a middle buckling foot (213), the side part of the middle buckling foot (213) is provided with another back-off bulge, a buckling opening (14) is formed in the corresponding position of the PCB (11), the middle buckling foot (213) is movably inserted into the buckling opening (14), and the back-off bulge is in buckling connection and matching with the buckling opening (14).

3. The coffee machine with waterproof key structure as recited in claim 2, wherein: at least one rubber head positioning opening (2213) is formed in the inner side of the module bottom shell (21); the side part of each tact switch unit (12) is respectively provided with a soft rubber head supporting rod (13), and the end part of the rubber head supporting rod (13) movably supports against the corresponding rubber head positioning opening (2213).

4. A coffee machine with waterproof key structure according to claim 3, characterized in that: two key body assembling cavities (210) with the same structure are respectively formed on the front side of the module bottom shell (21), each key body assembling cavity (210) is respectively provided with one key body (22), the bottom of each key body assembling cavity (210) is respectively provided with a supporting rod through hole (2210), and the key supporting rod (221) movably penetrates through the supporting rod through hole (2210) and supports against the corresponding tact switch unit (12); the reset elastic piece comprises a compression spring (23), the compression spring (23) is sleeved on the key supporting rod (221), one end of the compression spring (23) is connected with the key body (22), and the other end of the compression spring is connected with the module bottom shell (21).

5. The coffee machine with the waterproof key structure as recited in claim 4, wherein: a key body connecting part is formed on two sides of the key body assembling cavity (210) respectively, the key body connecting part comprises a formed connecting cavity (2211) and a shaft hole (2212), and the shaft hole (2212) is formed on the outer side of the bottom of the connecting cavity (2211); two sides of the key body (22) are respectively provided with a connecting rod (222), the outer side of the end part of the connecting rod (222) is provided with a shaft head, when the key body (22) is assembled in the corresponding key body assembling cavity (210), the connecting rods (222) at two sides are respectively movably inserted into the corresponding connecting cavities (2211), and the shaft heads are hinged with the shaft holes (2212).

6. The coffee machine with a waterproof key structure as recited in claim 1, wherein: a waterproof structure is clamped between the water retaining edge (211) and the outer casing (1), and the waterproof structure comprises a sealing ring or formed waterproof glue.

7. The coffee machine with a waterproof key structure as recited in claim 1, wherein: the outer surface of the key body (22) is provided with a baking finish surface layer structure.

8. The coffee machine with a waterproof key structure as recited in claim 1, wherein: the outside shaping of key body (22) has arcwall face form pressing part, and the pressing part of key body (22) under the initial state is from top to bottom outwards protrusion setting gradually, the protruding height of manger plate bordure (211) is higher than the topside of pressing part at least.