Internal structure of water dispenser

Abstract

The internal structure of the water dispenser comprises a base, an electric heating device and a circuit board, the electric heating device comprises a heating body, an upper end cover and a lower end cover, the heating body is electrically connected with the circuit board, the upper end cover and the lower end cover are connected to the upper end and the lower end of the heating body, the lower end cover is fixedly connected to the base, and an inserting groove is formed in the base. The lower end of the circuit board is inserted into the slot, and the upper end of the circuit board is fixedly connected with the upper end cover through a screw; according to the technical scheme, the inserting groove is formed in the base, when the circuit board is installed, the lower end of the circuit board is inserted into the inserting groove, the upper end of the circuit board is fixedly connected with the upper end cover through screws, compared with the mode that the upper end and the lower end of an existing circuit board are fixedly connected in a screw locking mode, the circuit board installation speed is higher, and the assembling efficiency of the water dispenser can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to water drinking machines, and in particular to an internal structure of a water drinking machine. Background Art

[0002] A water dispenser is a device that heats or cools bottled pure water (or mineral water) to make it convenient for people to drink.

[0003] The internal components of an existing water dispenser generally include a base, a water pump, an electric heating device and a circuit board. The electric heating device includes a heating body and an upper end cover and a lower end cover connected to the upper and lower ends of the electric heating body by bolts. The lower end cover is fixed to the base by screws. The upper end of the circuit board is fixed to the upper end cover by screws, and the lower end is fixed to the base by screws. The upper and lower ends of the circuit board are fixed by locking screws, which leads to low assembly efficiency of the water dispenser. Utility Model Content

[0004] In order to overcome the existing technical defects and solve the technical problem that the upper and lower ends of the internal circuit board of the water dispenser are fixedly connected by locking screws, resulting in low assembly efficiency, the purpose of the utility model is to provide an internal structure of the water dispenser to solve the above technical problems.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows:

[0006] According to one aspect of the utility model, an internal structure of a water dispenser is designed, including: a base, an electric heating device and a circuit board, the electric heating device includes a heating body electrically connected to the circuit board and an upper end cover and a lower end cover connected to the upper and lower ends of the heating body, the lower end cover is fixedly connected to the base, a slot is provided on the base, the lower end of the circuit board is inserted into the slot, and the upper end is fixedly connected to the upper end cover by screws.

[0007] By adopting the above technical solution, a slot is set on the base. When the circuit board is installed, its lower end is inserted into the slot, and the upper end is fixed to the upper end cover by screws. Compared with the existing circuit board in which the upper and lower ends are fixed by locking screws respectively, the circuit board installation speed is faster, which can improve the assembly efficiency of the water dispenser.

[0008] In order to better solve the above technical defects, the utility model also has a better technical solution:

[0009] In some embodiments, a water pump electrically connected to the circuit board is further included, an arc-shaped plate extends from the base, the water pump is placed in the arc-shaped plate and fastened to the arc-shaped plate by binding members, and a support portion for supporting the water pump is provided in the arc-shaped plate.

[0010] In some embodiments, a first insertion port is provided on the right side of the lower end cover, and a socket electrically connected to the circuit board is clamped in the first insertion port. Compared with the existing method of fixing the socket with screws, the clamping method of installing the socket can increase the installation speed, thereby improving the assembly efficiency of the water dispenser.

[0011] In some embodiments, a second insertion port is provided on the right side of the lower end cover, and a type-C interface electrically connected to the circuit board is mounted in the second insertion port. The type-C interface can be connected to a power line to power the water dispenser. When the type-C interface is connected to the power line for power supply, the water pump starts to supply water, the heating body does not work, and the water dispenser outputs normal temperature water; when the socket is connected to the power line for power supply, the water pump and the heating body both work, and the water dispenser outputs hot water.

[0012] In some embodiments, the top of the upper end cover has a water outlet joint, a raised portion is provided on the right side of the water outlet joint, a mounting hole connected to the water outlet channel in the water outlet joint is provided on the right side of the raised portion, a bayonet plug hole connected to the mounting hole is provided on the top of the raised portion, an NTC sensor electrically connected to the circuit board is sealed and inserted in the mounting hole, and a bayonet that blocks the NTC sensor from being separated from the mounting hole is inserted in the bayonet plug hole. The NTC sensor is inserted into the mounting hole, and its temperature measuring end can contact the hot water in the water outlet channel to achieve accurate temperature measurement and feedback to the circuit board.

[0013] In some embodiments, a heat sink is fixedly connected to the base, a thyristor electrically connected to the circuit board is installed on one side of the heat sink, heat dissipation silica gel is arranged between the thyristor and the heat sink, a circular groove is arranged on the top of the heat sink, and a water inlet pipe is connected to the water inlet end of the water pump, and the water inlet pipe is partially placed in the circular groove and in contact with the inner wall of the circular groove. When the thyristor is in working state, it acts as a continuous heating element and requires a fixed continuous cooling method. If the temperature cannot be reduced, the thyristor will explode or burn due to overheating. The technical solution can realize water cooling for the heat dissipation and temperature reduction of the thyristor through the heat sink, circular groove, and water inlet pipe structure, thereby ensuring the heat dissipation effect of the thyristor and prolonging its service life.

[0014] In some embodiments, a metal tube is sleeved on the water inlet pipe, and the metal tube is placed in the circular groove and contacts the inner wall of the circular groove. The metal tube can increase the heat transfer contact surface, accelerate the superconducting of heat on the heat sink to the water inlet pipe, and improve the heat dissipation effect.

[0015] In some embodiments, the right side of the lower end cover slides up and down to cooperate with a sliding cover for covering the socket and the type-C interface. When the sliding cover moves up, the socket is exposed, and when the sliding cover moves down, the type-C interface is exposed.

[0016] In some embodiments, two groups of bosses are provided on the right side of the lower end cover, and three groups of limiting grooves are provided on the sliding cover. When the limiting groove in the middle of the three groups of limiting grooves cooperates with the boss in the lower part of the two groups of bosses, the sliding cover covers the socket and the type-C interface. When the sliding cover moves upward, the limiting groove in the lower part of the three groups of limiting grooves can cooperate with the boss in the upper part of the two groups of bosses, and the socket is exposed. When the sliding cover moves downward, the limiting groove in the upper part of the three groups of limiting grooves can cooperate with the boss in the lower part of the two groups of bosses, and the type-C interface is exposed.

[0017] In some embodiments, two vertical guide protrusions are provided on the right side of the lower end cover, and two guide slots are provided on the sliding cover, and the two guide slots are slidably matched with the two guide protrusions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the internal structure of a water dispenser according to an embodiment of the present invention;

[0019] Figure 2 A structural schematic diagram of the internal structure of the water dispenser from another perspective;

[0020] Figure 3 is a schematic diagram of the structure of the base;

[0021] Figure 4 is a structural schematic diagram of the upper end cover;

[0022] Figure 5 is a schematic diagram of the cross-sectional structure of the upper end cover;

[0023] Figure 6 is a schematic diagram of the structure of the lower end cover;

[0024] Figure 7 A schematic diagram of the structure of the lower end cover from another perspective;

[0025] Figure 8 This is a schematic diagram of the explosion structure of the lower end cover;

[0026] Fig. 9 is a schematic diagram of the structure of the sliding cover;

[0027] Reference numerals:

[0028] 1. Base; 11. Plug-in part; 111. Notch; 12. Arc plate; 121. Support part; 2. Electric heating device; 21. Heating body; 22. Upper end cover; 221. Water outlet joint; 222. Water outlet pipe; 223. Raised part; 224. Mounting hole; 225. Bayonet plug hole; 226. NTC sensor; 227. Bayonet; 23. Lower end cover; 231. Water inlet joint; 232. Connecting water pipe; 233. Limit rod; 234. Undercut; 235. Guide raised strip; 236. Boss; 3. Circuit board; 4. Water pump; 41. Water inlet pipe; 42. Metal pipe; 42. Binding part; 5. Socket; 51. Limit part; 52. Limit boss; 6. Type-C interface; 61. Elastic buckle; 7. Heat sink; 8. Slide cover; 81. Guide slide groove; 82. Limit groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, and fixing should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] refer to Figures 1 to 9As shown, the internal structure of a water dispenser provided by the utility model includes: a base 1, an electric heating device 2, a circuit board 3 and a water pump 4, the electric heating device 2 includes a heating body 21, an upper end cover 22 and a lower end cover 23, the upper end cover 22 and the lower end cover 23 are respectively locked at the upper end and the lower end of the heating body 21 by bolts, the top of the upper end cover 22 is provided with a water outlet joint 221, the water outlet joint 221 is provided with a water outlet channel connected to the interior of the heating body 21, the water outlet joint 221 is connected to a water outlet pipe 222, the lower end cover 23 is provided with a water inlet joint 231, the water inlet joint 231 is provided with a water inlet channel connected to the interior of the heating body 21, the water inlet joint 231 is connected to a connecting water pipe 232, the connecting water pipe 232 is connected to the water outlet end of the water pump 4, and the water inlet end of the water pump 4 is connected to the water inlet pipe 41.

[0033] The lower end cover 23 is fixedly connected to the base 1. Specifically, one, two, three or more connecting columns extend downward from the bottom of the lower end cover 23. The connecting columns are in contact with the base 1, and the connecting columns and the base 1 are fixedly connected by screws.

[0034] A slot is provided on the base 1. Specifically, two plug-in parts 11 are provided on the base 1. Notches 111 are respectively provided on opposite sides of the two plug-in parts 11. The two notches 111 constitute the slot. The lower end of the circuit board 3 is inserted into the slot, and the upper end of the circuit board 3 is fixed to the upper end cover 22 by a screw.

[0035] An arc-shaped plate 12 extends from the base 1, the water pump 4 is placed in the arc-shaped plate 12 and fastened to the arc-shaped plate 12 by a binding member 42, the binding member 42 is a cable tie or a strap, a support portion 121 is provided in the arc-shaped plate 12, the support portion 121 is in contact with the bottom of the water pump 4, and is used to support the water pump 4, the support portion 121 is two or three or more vertical structural ribs extending from the inner side of the arc-shaped plate 12, or the support plate is a step position provided on the inner side of the arc-shaped plate 12.

[0036] A protrusion 223 is provided on the right side of the water outlet joint 221, and a mounting hole 224 connected to the water outlet channel in the water outlet joint 221 is provided on the right side of the protrusion 223. A bayonet plug hole 225 connected to the mounting hole 224 is provided on the top of the protrusion 223. The bayonet plug hole 225 is provided with one or two, and the bayonet plug hole 225 passes through the protrusion 223 and the upper end cover 22 from top to bottom. The bayonet plug hole 225 can also only pass through the protrusion 223. In this embodiment, it is preferred that two bayonet plug holes 225 are provided and pass through the protrusion 223 and the upper end cover 22 from top to bottom. The mounting hole 224 is sealed The seal is provided with an NTC sensor 226, wherein an O-ring is sleeved on the NTC sensor 226, and the O-ring is in sealing contact with the mounting hole 224 to achieve sealed insertion of the NTC sensor 226, and the NTC sensor 226 is electrically connected to the circuit board 3 to detect the water temperature and feed it back to the circuit board 3, and both ends of the bayonet 227 are respectively inserted into the two bayonet pin holes 225 from above and downward, and the bayonet 227 is located on the right side of the annular protrusion on the NTC sensor 226, and is used to prevent the NTC sensor 226 from being separated from the mounting hole 224.

[0037] A first insertion port is provided on the right side of the lower end cover 23, and a socket 5 electrically connected to the circuit board 3 is carded in the first insertion port. The socket 5 is a two-pin socket or a three-pin socket. Limiting rods 233 are provided on the front and rear sides of the bottom of the lower end cover 23, respectively. A buckle 234 is provided at the lower end of the limiting rod 233. Limiting parts 51 are provided on the front and rear sides of the socket 5, respectively, and a limiting boss 52 is provided at the bottom. The buckle 234 cooperates with the limiting surface at the bottom of the limiting part 51, and the top surface of the limiting boss 52 contacts the lower end cover 23. When the socket 5 is installed, it moves upward from the bottom of the lower end cover 23 to be assembled on the lower end cover 23.

[0038] A second insertion port is provided on the right side of the lower end cover 23, and a type-C interface 6 electrically connected to the circuit board 3 is card-mounted in the second insertion port, wherein elastic buckles 61 are respectively provided on the front and rear sides of the type-C interface 6. When the type-C interface 6 is inserted from the second insertion port, the elastic buckle 61 is squeezed and deformed. After insertion, the elastic buckle 61 resets to restrict the type-C interface 6 from being pulled out, thereby realizing the card-mounting of the type-C interface 6. The elastic buckle 61 is made of silicone material or a sheet metal structure.

[0039] A heat sink 7 is fixedly connected to the base 1, and a thyristor is fixedly connected to one side of the heat sink 7 by screws. Heat dissipation silicone is arranged between the thyristor and the heat sink 7, and the thyristor is electrically connected to the circuit board 3. A circular groove is arranged on the top of the heat sink 7, and a water inlet pipe 41 is partially placed in the circular groove and contacts with the inner wall of the circular groove. In order to further improve the heat dissipation effect, a metal tube 42 is sleeved on the water inlet pipe 41. The metal tube 42 is a stainless steel tube, an aluminum tube, a copper tube, an aluminum alloy tube, etc. The length of the metal tube 42 is the same as or greater than the length of the circular groove, and the metal tube 42 is placed in the circular groove and contacts with the inner wall of the circular groove.

[0040] The right side of the lower end cover 23 is slidably matched with a sliding cover 8 for covering the socket 5 and the type-C interface 6. When the sliding cover 8 is moved up, the socket 5 can be exposed, and when the sliding cover 8 is moved down, the type-C interface 6 can be exposed. Among them, two vertical guide protrusions 235 are arranged on the right side of the lower end cover 23, and two guide slots 81 are arranged on the sliding cover 8. The two guide slots 81 correspond to the two guide protrusions 235 and slide vertically.

[0041] Two groups of bosses 236 are provided on the right side of the lower end cover 23, and each group of bosses 236 has two bosses. Three groups of limiting grooves 82 are provided on the sliding cover 8, and each group of limiting grooves 82 has two bosses. When the limiting groove 82' in the middle of the three groups of limiting grooves 82 cooperates with the boss 236' in the lower part of the two groups of bosses 236, the sliding cover 8 covers the socket 5 and the type-C interface 6. When the sliding cover 8 moves up to make the limiting groove 82" in the lower part of the three groups of limiting grooves 82 cooperate with the boss 236" in the upper part of the two groups of bosses 236, the socket 5 is exposed. When the sliding cover 8 moves down to make the limiting groove 82"' in the upper part of the three groups of limiting grooves 82 cooperate with the boss 236' in the lower part of the two groups of bosses 236, the type-C interface 6 is exposed.

[0042] The base 1 is mounted in the outer shell of the water dispenser. The outer shell is provided with through holes to expose the socket 5 and the type-C interface 6. The sliding cover 8 is located in the outer shell and there is a gap between the sliding cover 8 and the outer shell. The sliding cover 8, the lower end cover 23 and the outer shell are all made of plastic.

[0043] The internal structure of the water dispenser of this technical solution is that multiple components are connected and assembled by plug-in and snap-in methods to achieve modular assembly, which can improve the assembly efficiency of the water dispenser; an innovative structure is developed to prevent parallel input limitations of strong and weak electricity to meet the usage needs of different users; water cooling is used to dissipate heat from the thyristor, which has good heat dissipation effect and can improve the safety and service life of the product.

[0044] The above are only some embodiments of the present invention. For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An internal structure of a water dispenser, characterized in that: include: A base, an electric heating device and a circuit board, wherein the electric heating device comprises a heating body electrically connected to the circuit board and an upper end cover and a lower end cover connected to the upper and lower ends of the heating body, wherein the lower end cover is fixedly connected to the base, and a slot is provided on the base, wherein the lower end of the circuit board is inserted into the slot, and the upper end is fixedly connected to the upper end cover by screws.

2. The internal structure of a water dispenser according to claim 1, characterized in that: It also includes a water pump electrically connected to the circuit board, an arc-shaped plate extends from the base, the water pump is placed in the arc-shaped plate and fastened to the arc-shaped plate by a binding member, and a support portion for supporting the water pump is provided in the arc-shaped plate.

3. The internal structure of a water dispenser according to claim 1 or 2, characterized in that: A first insertion port is arranged on the right side of the lower end cover, and a socket electrically connected to the circuit board is mounted in the first insertion port.

4. The internal structure of a water dispenser according to claim 3, characterized in that: A second insertion port is provided on the right side of the lower end cover, and a type-C interface electrically connected to the circuit board is card-mounted in the second insertion port.

5. The internal structure of a water dispenser according to claim 1, characterized in that: The top of the upper end cover is provided with a water outlet joint, a protrusion is provided on the right side of the water outlet joint, a mounting hole connected with the water outlet channel in the water outlet joint is provided on the right side of the protrusion, a bayonet plug hole connected with the mounting hole is provided on the top of the protrusion, an NTC sensor electrically connected to the circuit board is sealed and inserted in the mounting hole, and a bayonet pin that prevents the NTC sensor from being separated from the mounting hole is inserted in the bayonet plug hole.

6. The internal structure of a water dispenser according to claim 2, characterized in that: A heat sink is fixedly connected to the base, a thyristor electrically connected to the circuit board is installed on one side of the heat sink, heat dissipation silica gel is arranged between the thyristor and the heat sink, a circular groove is arranged on the top of the heat sink, and a water inlet pipe is connected to the water inlet end of the water pump, and the water inlet pipe part is placed in the circular groove and contacts with the inner wall of the circular groove.

7. The internal structure of a water dispenser according to claim 6, characterized in that: A metal pipe is sleeved on the water inlet pipe, and the metal pipe is placed in the circular groove and contacts with the inner wall of the circular groove.

8. The internal structure of a water dispenser according to claim 4, characterized in that: The right side of the lower end cover slides up and down to cooperate with a sliding cover for covering the socket and the type-C interface. When the sliding cover moves up, the socket can be exposed, and when the sliding cover moves down, the type-C interface can be exposed.

9. The internal structure of a water dispenser according to claim 8, characterized in that: Two groups of bosses are arranged on the right side of the lower end cover, and three groups of limiting grooves are arranged on the sliding cover. When the limiting groove in the middle of the three groups of limiting grooves cooperates with the boss in the lower part of the two groups of bosses, the sliding cover covers the socket and the type-C interface. When the sliding cover moves up so that the limiting groove in the lower part of the three groups of limiting grooves cooperates with the boss in the upper part of the two groups of bosses, the socket is exposed. When the sliding cover moves down so that the limiting groove in the upper part of the three groups of limiting grooves cooperates with the boss in the lower part of the two groups of bosses, the type-C interface is exposed.

10. The internal structure of a water dispenser according to claim 8, characterized in that: The right side of the lower end cover is provided with two vertical guide protrusion strips, and the sliding cover is provided with two guide slide grooves, and the two guide slide grooves are correspondingly slidably matched with the two guide protrusion strips.

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