CN220069464U - Connector with double water level control - Google Patents

Abstract

The utility model relates to a connector with double water level control, which comprises a fixed seat and a lower coupling seat, wherein the fixed seat is provided with a low water level micro switch and a high water level micro switch, the low water level micro switch and the high water level micro switch are respectively provided with a first switch key and a second switch key, the lower coupling seat is correspondingly provided with a low water level touch piece and a high water level touch piece, when the low water level touch piece and the high water level touch piece trigger the first switch key and the second switch key according to different bearing weights of the lower coupling seat, or the bearing weight of the lower coupling seat is reduced until the high water level touch piece and the second switch key are separated first, but the low water level touch piece keeps triggering the first switch key, and the low water level micro switch and/or the high water level micro switch disconnect a water adding circuit; the coupler realizes double water level control through a mechanical structure, so that after a certain water amount is poured out of the kettle body, when the residual water amount is not lower than a low water level, the kettle body cannot be frequently added with water and repeatedly heated, and the user experience is improved.

Description

Connector with double water level control

Technical Field

The utility model relates to the field of couplers, in particular to a connector with double water level control.

Background

The existing electric kettle generally comprises a base and a kettle body, wherein the base is provided with a control circuit, the lower part of the kettle body is provided with a heating element, the kettle body is connected with the control circuit through a coupler, and the kettle body is also provided with a water level sensor. When the electric kettle is used, the kettle body is only required to be placed on the base, the base and the control circuit of the kettle body are connected, the water level sensor and the water pump in the base form linkage to control the maximum water level in the kettle body, but the electric kettle with the structure has the following defects:

defect 1: the signal output end of the water level sensor in the kettle body is commonly connected to the ground wire of the electric kettle, the setting mode causes that the water body in the kettle body has weak current, the electric kettle in the existing market has certain potential safety hazard in the use process, and the current safety requirement of the electric kettle is not met.

Defect 2: even if the electric kettle is provided with a water level sensor, the water level sensor only monitors whether no water or very low water level exists in the kettle body, after a user triggers a water boiling command, when the situation that no water or very low water level exists in the kettle body is judged, the water pump is automatically started to add water into the kettle body, so that the phenomenon that after the kettle body has certain water amount, after the user manually triggers the water adding command, the electric kettle only adds water into the kettle body according to the preset water adding time, and finally, when the water amount added after the original water amount in the kettle body is overlapped again, water is easy to overflow outwards from a kettle mouth or a kettle mouth, and the use experience of the user is affected.

Defect 3: because the water level sensor belongs to external parts and is assembled on the heating disc at the bottom of the kettle body, at least one assembly step is added during assembly, so that the assembly efficiency of the electric kettle is reduced, and the production cost of the electric kettle is increased by the water level sensor.

Therefore, the applicant provides a new technical solution to solve the above-mentioned various defects by improving and perfecting the coupler and combining the prior art at the same time, so as to be used by consumers.

Disclosure of Invention

The utility model aims to solve the existing problems and provide the connector with the double water level control, which has the main functions that after a certain amount of water is poured out from the kettle body, the kettle body is not frequently added with water and repeatedly heated when the residual water amount is not lower than a low water level, so that the user experience is improved.

The connector comprises a fixed seat and a lower coupling seat used for supporting a kettle body and electrically connected with the kettle body, wherein an elastic reset structure is arranged between the lower coupling seat and the fixed seat, the lower coupling seat is movably assembled above the fixed seat through the elastic reset structure and can move up and down relative to the fixed seat, a low water level micro switch and a high water level micro switch which are used for being connected in series on a water adding circuit are arranged on the fixed seat, a first switch key and a second switch key are respectively arranged on the low water level micro switch and the high water level micro switch, a low water level touch piece and a high water level touch piece which are movably triggered by the first switch key and the second switch key are correspondingly arranged on the lower coupling seat, and when the low water level touch piece and the high water level touch piece trigger the first switch key and the second switch key according to different bearing weights of the lower coupling seat, or the bearing weight of the lower coupling seat is reduced until the high water level touch piece and the second switch key are separated first, but the low water level touch piece keeps triggering the first switch key, and the low water level micro switch or/and the high micro switch are disconnected.

The aim of the utility model can be also solved by adopting the following technical measures:

as a more specific scheme, the low water level touch piece and the high water level touch piece are respectively a first trigger convex column and a second trigger convex column which are formed by integrally extending the bottom of the lower coupling seat downwards, the extending length of the second trigger convex column is larger than that of the first trigger convex column, the bottom of the first trigger convex column is elastically pressed against the first switch key, and the bottom of the second trigger convex column is rigidly pressed against the second switch key.

As a further scheme, the bottom of first trigger projection has seted up the installation blind hole, is provided with the pressing spring in the installation blind hole, and the outer end of pressing spring extends outside the installation blind hole and elasticity presses on first on-off key.

As a further scheme, the inner side of the fixing seat is extended with a first switch mounting frame and a second switch mounting frame, and the low water level micro switch and the high water level micro switch are respectively tightly matched on the first switch mounting frame and the second switch mounting frame, and the opposite sides of the low water level micro switch and the high water level micro switch are arranged on the same symmetrical line.

As a further scheme, a linear guide assembly is further arranged between the fixed seat and the lower coupling seat; the linear guide assembly comprises a plurality of guide sleeves circumferentially uniformly distributed on the inner side wall of the fixed seat, guide convex columns corresponding to the number of the guide sleeves and arranged at the bottom of the lower coupling seat, the guide convex columns and the guide sleeves form linear sliding fit, and the bottoms of the guide convex columns are provided with adjustable limiting assemblies which are in limiting offset with the guide sleeves.

As a further scheme, the elastic reset structure mainly comprises a reset spring; and a spring positioning sleeve with an open bottom is arranged between two adjacent guide convex columns, the reset spring is arranged in the spring positioning sleeve, the top end of the reset spring is propped against the spring positioning sleeve, and the bottom end of the reset spring extends out of the spring positioning sleeve and is propped against the spring stop surface on the fixing seat in a limiting manner.

As a further scheme, still including the cover establish on the clamp plate in the fixing base outside, be provided with fastening portion on the clamp plate, the corresponding fastening cooperation portion that is provided with in fastening portion top on the fixing base, the top of fixing base is provided with compresses tightly the turn-ups, and clamp plate and fixing base pass through behind fastening portion and the fastening cooperation portion assembly connection, form the interval that is used for the fixation clamp to adorn at the assembly panel between clamp plate and the compress tightly the turn-ups.

As a further scheme, the inside wall of clamp plate is provided with a plurality of and circumference equipartition's engaging lug, the inside wall of fixing base is provided with a plurality of and is suitable for the positioning seat of engaging lug location holding, and the top of positioning seat is provided with connects the projection, connects the projection and corresponds with the spring position sleeve, and the top surface forms the spring stop face.

As a further scheme, the fastening part is a lower connecting hole formed in the connecting lug, the fastening matching part is an upper connecting hole formed in the connecting convex column, and the fixing seat and the pressing plate are fixedly connected through the lower connecting hole and the upper connecting hole by a fastening piece.

The beneficial effects of the utility model are as follows:

according to the double-water-level control connector, the water level in the kettle body reaches the preset minimum water adding water level and the preset maximum water cutting-off water level in a weight triggering mode through the micro switch, the current induction mode of the traditional water level sensor can be replaced, the problem that the water body in the kettle body has weak current due to the fact that the water level sensor is connected with a ground wire is completely avoided, potential power utilization hazards can be eliminated, and the coupler and the kettle body thereof can meet safety requirements and are safer to use.

According to the double-water-level control connector, the water level control effect of the kettle body is achieved through the pure mechanical structure of the double micro-switches, a complex water level control program written on a water adding circuit can be omitted, the design period and the production cost are reduced, after a certain amount of water is poured out under the condition that the kettle body is full of water, a water adding circuit is still not triggered to add water when the water level in the kettle is between the lowest water adding water level and the highest water breaking water level, water is not added frequently and the water is repeatedly heated, user experience can be further improved, the times of water adding and heating are reduced, electric energy consumption can be reduced, and the double-water-level control connector is energy-saving and environment-friendly.

According to the double-water-level control connector, the minimum water adding water level and the maximum water cutting-off water level are judged through mechanical touch of the micro switch, the influence of the traditional preset water adding time and the original water amount in the kettle body is avoided under any condition, a user does not need to observe the instant position of the water level at any time during water adding, the situation that the water level of the kettle body is too high and even water overflows from the kettle mouth or the kettle mouth is avoided, the use experience of the user can be improved, and the cleaning burden is reduced.

The double-water-level control connector can omit a water level sensor, can reduce the production cost of a kettle body, can simplify the assembly process of the kettle body and improves the production efficiency.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present utility model.

Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.

Fig. 3 is a schematic diagram of an exploded structure of two micro switches and a fixing base according to the present utility model.

Fig. 4 is an exploded view of the fixing base and the lower coupling base of the present utility model.

Fig. 5 is an exploded view of the pressing plate and the fixing base of the present utility model.

Detailed Description

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

As shown in fig. 1 to 5, a connector for controlling dual water levels includes a fixing base 1 and a lower coupling base 2 for supporting a kettle body and electrically connected with the kettle body, an elastic reset structure is provided between the lower coupling base 2 and the fixing base 1, the lower coupling base 2 is movably assembled above the fixing base 1 through the elastic reset structure and can move up and down relative to the fixing base 1, the fixing base 1 is provided with a low water level micro switch 4 and a high water level micro switch 5 for being connected in series on a water adding circuit 3, the low water level micro switch 4 and the high water level micro switch 5 are respectively provided with a first switch key 41 and a second switch key 51, the lower coupling base 2 is correspondingly provided with a low water level touch piece and a high water level touch piece for movably triggering the first switch key 41 and the second switch key 51, when the low water level touch piece and the high water level touch piece trigger the first switch key 41 and the second switch key 51 according to different bearing weights of the lower coupling base 2, or the bearing weight of the lower coupling base 2 is reduced until the high touch piece and the second switch key 51 are separated first, but the low water level micro switch 4 and the first switch 4 and the high water level micro switch 5 are kept.

This structure makes the kettle body realize the water level control effect through the pure mechanical structure of two micro-gap switches, can save writing complicated water level control procedure on adding water circuit 3, reduce design cycle and manufacturing cost, pour out certain water yield under the kettle body full water condition after, when the water level in its kettle is between minimum water level and the highest water-break water level, still can not trigger adding water circuit 3 and add water, can not frequently add water and heat the water repeatedly, can further promote user experience sense, reduce the number of times of adding water and heating moreover, can reduce the electric energy consumption, energy saving and environmental protection.

The specific principle is as follows: before the pot body leaves the factory, presetting a lowest water adding water level and a highest water cutting-off water level in the pot body, adding clear water into the pot body until reaching the preset lowest water adding water level, taking the total weight of the pot body added with the water body as the low water level rated load of the lower coupling seat 2, continuing adding clear water into the pot body until reaching the preset highest water cutting-off water level, and taking the total weight of the pot body added with the water body as the high water level rated load of the lower coupling seat 2;

when the kettle body is used in factory, zero water is automatically added into the kettle body, when the total weight of the kettle body connected with water is equal to the rated low water level load of the lower coupling seat 2, the lower coupling seat 2 can be settled to a first height after the water level of the kettle body reaches the lowest water adding level, and meanwhile, the low water level touch piece is driven to press the first switch key 41 of the low water level micro switch 4, at the moment, the water adding circuit 3 is continuously communicated, and the kettle body is continuously added with water;

when water is continuously added so that the total weight of the kettle body connected with water is equal to the high water level rated load of the lower coupling seat 2, the lower coupling seat 2 continuously settles to a second height after the water level of the kettle body reaches the highest water cut-off water level, and simultaneously drives the high water level touch piece to press the second switch key 51 of the high water level micro switch 5, and under the condition that the low water level micro switch 4 and the high water level micro switch 5 are triggered at the same time, the kettle body is heated after the water adding circuit 3 is disconnected and water adding is stopped;

after the user lifts the kettle and pours water, the total weight of the kettle body water is gradually reduced, but the water level of the residual water is still between the lowest water adding water level and the highest water cutting-off water level, so that the total weight of the kettle body water is between the low water level rated load and the high water level rated load, at the moment, the lower coupling seat 2 can be lifted again to a position between the first height and the second height, the height of the lower coupling seat can only meet the condition that the low water level touch piece keeps pressing the first switch key 41 of the low water level micro switch 4, the water adding circuit 3 can still keep the disconnection state until the water level of the residual water is lower than the lowest water adding water level, at the moment, the lower coupling seat 2 can be lifted again to a position above the first height, the low water level touch piece and the high water level touch piece are separated from the first switch key 41 and the second switch key 51, the water adding circuit 3 is switched on again to add water, and the steps are repeated.

The low water level touch piece and the high water level touch piece are respectively a first trigger convex column 61 and a second trigger convex column 7 which are integrally formed by downward extension of the bottom of the lower coupling seat 2, the extension length of the second trigger convex column 7 is longer than that of the first trigger convex column 61, the bottom of the first trigger convex column 61 is elastically pressed against the first switch key 41, and the bottom of the second trigger convex column 7 is rigidly pressed against the second switch key 51; after the first trigger convex column 61 elastically presses the first switch key 41, the lower coupling seat 2 can realize secondary sedimentation, so that the first switch key 41 and the second switch key 51 are pressed against one another.

A mounting blind hole 62 is formed in the bottom of the first trigger convex column 61, a pressing spring 63 is arranged in the mounting blind hole 62, and the outer end of the pressing spring 63 extends out of the mounting blind hole 62 and is elastically pressed against the first switch key 41; simple structure and low production cost.

The inboard extension of fixing base 1 has first switch mounting bracket 11 and second switch mounting bracket 12, low water level micro-gap switch 4 and high water level micro-gap switch 5 respectively close-fitting on first switch mounting bracket 11 and second switch mounting bracket 12, and the offside sets up on same symmetry line, and the terminal of low water level micro-gap switch 4 and high water level micro-gap switch 5 can pass first switch mounting bracket 11 or second switch mounting bracket 12 and draw forth to the outside, and low water level micro-gap switch 4 and high water level micro-gap switch 5 offside setting can make the effort disperse, and the atress condition is better.

A linear guide assembly is further arranged between the fixed seat 1 and the lower coupling seat 2; the linear guide assembly comprises a plurality of guide sleeves 13 circumferentially and uniformly distributed on the inner side wall of the fixed seat 1, and guide convex columns 21 corresponding to the number of the guide sleeves 13 and arranged at the bottom of the lower coupling seat 2, wherein the guide convex columns 21 and the guide sleeves 13 form linear sliding fit, and the bottom of the guide convex columns 21 is provided with an adjustable limiting assembly which is in limiting and propping against the guide sleeves 13; this structure helps to ensure that the lower coupling seat 2 can move up and down in the vertical direction.

In this embodiment, the adjustable limiting component includes an adjustable screw 81 and a washer 82 sleeved on the adjustable screw 81, the washer 82 is in spacing and propping fit with the bottom surface of the guide sleeve 13, and by adjusting the position of the adjustable screw 81, the time for pressing the switch key by the touch piece can be changed, so as to adjust the rated load of the upper coupling seat.

The elastic reset structure mainly comprises a reset spring 9; a spring positioning sleeve 22 with an open bottom is arranged between two adjacent guide convex columns 21, the reset spring 9 is arranged in the spring positioning sleeve 22, the top end of the reset spring is propped against the spring positioning sleeve 22, and the bottom end of the reset spring 9 extends out of the spring positioning sleeve 22 and is propped against a spring stop surface 161 on the fixed seat 1 in a limiting way; when the kettle body is free of water, or low in water level, or the water level is lower than the preset minimum water adding water level, the trigger piece on the lower coupling seat 2 is separated from pressing the switch key through the acting force of the reset spring 9.

The pressing plate 10 is sleeved on the outer side of the fixed seat 1, a fastening part is arranged on the pressing plate 10, a fastening matching part arranged above the fastening part is correspondingly arranged on the fixed seat 1, a pressing flanging 14 is arranged at the top of the fixed seat 1, and after the pressing plate 10 and the fixed seat 1 are assembled and connected with the fastening matching part through the fastening part, a space for fixing and clamping an assembled panel is formed between the pressing plate 10 and the pressing flanging 14; the assembly panel is a carrier for mounting the connector, and is connected with the fixing base 1 through the pressing plate 10 so as to fix the connector.

The inner side wall of the pressing plate 10 is provided with a plurality of connecting lugs 1001 which are uniformly distributed in the circumferential direction, the inner side wall of the fixing seat 1 is provided with a plurality of positioning seats 15 which are suitable for positioning and accommodating the connecting lugs 1001, positioning cavities 151 which are matched with the shapes of the connecting lugs 1001 are arranged in the positioning seats 15, connecting convex columns 16 are arranged above the positioning seats 15, the connecting convex columns 16 correspond to the spring positioning sleeves 22, and the top surfaces of the connecting convex columns 16 form spring stop surfaces 161; the assembly effect of the pressing plate 10 can be improved through the foolproof matching of the connecting lugs 1001 and the positioning cavity 151, and the pressure during the assembly can be evenly distributed;

the fastening part is a lower connecting hole 1002 formed on the connecting lug 1001, the fastening matching part is an upper connecting hole 162 formed on the connecting convex column 16, and the fixing seat 1 and the pressing plate 10 pass through the lower connecting hole 1002 and the upper connecting hole 162 through a fastening piece to realize fixed connection; the assembly is realized through the fasteners such as screws, so that loose space can be avoided after the assembly, and the assembly stability of the connector is improved.

The lower coupling seat 2 is a five-ring lower coupling seat, a central through hole 201 is arranged in the five-ring lower coupling seat, and a water inlet pipeline 202 is assembled in the central through hole 201; the structure enables the coupler to have the bottom water feeding or discharging function.

The foregoing is a preferred embodiment of the utility model showing and describing the general principles, features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the utility model, and that various changes and modifications may be effected therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.

Claims (9)

1. The connector for double water level control comprises a fixed seat and a lower coupling seat for supporting a kettle body and electrically connecting the kettle body, wherein an elastic reset structure is arranged between the lower coupling seat and the fixed seat, the lower coupling seat is movably assembled above the fixed seat through the elastic reset structure and can move up and down relative to the fixed seat.

2. The connector of claim 1, wherein the low water level touch member and the high water level touch member are respectively a first trigger convex column and a second trigger convex column which are integrally formed by extending downwards from the bottom of the lower coupling seat, the extension length of the second trigger convex column is longer than that of the first trigger convex column, the bottom of the first trigger convex column is elastically pressed against the first switch key, and the bottom of the second trigger convex column is rigidly pressed against the second switch key.

3. The connector of claim 2, wherein the bottom of the first trigger post is provided with a mounting blind hole, a pressing spring is arranged in the mounting blind hole, and the outer end of the pressing spring extends out of the mounting blind hole and is elastically pressed against the first switch key.

4. The connector for double water level control according to claim 1, wherein the first switch mounting frame and the second switch mounting frame extend from the inner side of the fixing seat, and the low water level micro switch and the high water level micro switch are respectively tightly matched on the first switch mounting frame and the second switch mounting frame, and the opposite sides of the low water level micro switch and the high water level micro switch are arranged on the same symmetrical line.

5. The connector for double water level control of claim 1, wherein a linear guide assembly is further arranged between the fixed seat and the lower coupling seat; the linear guide assembly comprises a plurality of guide sleeves circumferentially uniformly distributed on the inner side wall of the fixed seat, guide convex columns corresponding to the number of the guide sleeves and arranged at the bottom of the lower coupling seat, the guide convex columns and the guide sleeves form linear sliding fit, and the bottoms of the guide convex columns are provided with adjustable limiting assemblies which are in limiting offset with the guide sleeves.

6. The connector of claim 5, wherein said resilient return structure comprises a return spring; and a spring positioning sleeve with an open bottom is arranged between two adjacent guide convex columns, the reset spring is arranged in the spring positioning sleeve, the top end of the reset spring is propped against the spring positioning sleeve, and the bottom end of the reset spring extends out of the spring positioning sleeve and is propped against the spring stop surface on the fixing seat in a limiting manner.

7. The connector of claim 6, further comprising a pressing plate sleeved on the outer side of the fixing seat, wherein the pressing plate is provided with a fastening part, the fixing seat is correspondingly provided with a fastening matching part arranged above the fastening part, the top of the fixing seat is provided with a pressing flanging, and after the pressing plate and the fixing seat are assembled and connected with the fastening matching part through the fastening part, a space for fixing the pressing plate on the assembling panel is formed between the pressing plate and the pressing flanging.

8. The connector for double water level control according to claim 7, wherein a plurality of connecting lugs which are uniformly distributed in the circumferential direction are arranged on the inner side wall of the pressing plate, a plurality of positioning seats which are suitable for positioning and accommodating the connecting lugs are arranged on the inner side wall of the fixing seat, connecting convex columns are arranged above the positioning seats, the connecting convex columns correspond to the spring positioning sleeves, and the top surfaces of the connecting convex columns form spring stop surfaces.

9. The connector for controlling double water levels according to claim 8, wherein the fastening part is a lower connecting hole formed on the connecting lug, the fastening matching part is an upper connecting hole formed on the connecting convex column, and the fixing seat and the pressing plate are fixedly connected through the lower connecting hole and the upper connecting hole by a fastening piece.