CN216528552U - Key assembly and liquid heating container - Google Patents

Abstract

The utility model provides a key assembly and a liquid heating container. The button assembly comprises a circuit board, a switch piece and a button, wherein the switch piece is electrically connected to the circuit board, the button is arranged above the switch piece, the button can be pressed to move downwards to trigger the switch piece, the button comprises a button support, a first buckle is arranged on the button support, a jack is arranged on the circuit board, the first buckle penetrates through the jack, and the button is connected with the surface of the circuit board away from the switch piece in a buckled mode under the condition that the button is not pressed. The key is convenient to disassemble, and convenience is provided for follow-up maintenance and key replacement.

Description

Key assembly and liquid heating container

Technical Field

The utility model relates to the technical field of cooking, in particular to a key assembly and a liquid heating container.

Background

Most of the existing liquid heating containers have multiple cooking functions so as to meet different cooking requirements of users. Taking a health preserving pot as an example, different cooking modes can be configured for different drinks, and a user selects drinks such as boiled water, tremella soup, flower and fruit tea and the like by rotating a knob, and then presses a key in the knob to start a corresponding cooking program. Specifically, the knob is fixed in the outer lane of encoder in order to drive the outer lane rotatory, and the button is fixed in the inner circle of encoder, and inner circle inner space is less, compact structure, and this just leads to the button to dismantle hardly, is unfavorable for later stage dismantlement and maintenance.

SUMMERY OF THE UTILITY MODEL

Therefore, an object of the present invention is to provide a key assembly and a liquid heating container to solve the problem of difficulty in detaching the key.

The embodiment of the first aspect of the utility model provides a key assembly, which comprises a circuit board, a switch part electrically connected on the circuit board and a key arranged above the switch part, wherein the key can be pressed down to trigger the switch part, the key comprises a key support, a key support and a first buckle, the circuit board is provided with a jack, and the first buckle penetrates through the jack and is buckled and connected with the surface of the circuit board, which deviates from the switch part, under the condition that the key is not pressed.

According to the key assembly provided by the embodiment of the utility model, the key can be pressed down to trigger the switch piece on the circuit board, so that a corresponding function is realized. In addition, set up first buckle on the key-press support, make first buckle pass the jack of circuit board to when the button is not pressed, make first buckle can the lock at the circuit board back, also the surface that the circuit board deviates from the switch spare, realize that the button is fixed on the circuit board. On one hand, the structure is simple, the installation is stable, and the key can be prevented from being easily separated from the circuit board; on the other hand, the back surface of the circuit board can have a large space, so that enough moving space is provided for the first buckle to deform and shift to release the buckling state, the button is convenient to detach, and convenience is provided for subsequent maintenance and button replacement.

In some embodiments, the key assembly further includes a return spring, the return spring is disposed between the key support and the circuit board in a pressed manner, the key support can press the return spring to move downwards to trigger the switch member, and the key support can also be reset under the elastic force of the return spring and drive the first buckle to be buckled on the surface of the circuit board away from the switch member.

In the embodiments, the spring is arranged between the key support and the circuit board, which is beneficial to improving the pressing hand feeling of a user and ensuring that the key can reset. Moreover, the first buckle can be stably buckled on the surface of the circuit board departing from the switch piece by means of the elasticity of the reset spring, so that the installation stability of the key is ensured.

In some embodiments, the number of the first buckles is multiple, and the first buckles are distributed at intervals around the central axis of the key. The key is beneficial to ensuring that the key is stably fixed on the circuit board and cannot easily fall off from the circuit board.

In some embodiments, the key support is further provided with a guide post extending vertically, the circuit board is provided with a guide hole matched with the guide post, and the guide post is inserted into the guide hole and can move up and down along the guide hole.

In the embodiments, the key and the circuit board are matched with each other through the guide posts and the guide holes, and particularly, the guide posts are inserted into the guide holes and move up and down along the guide holes in the process of pressing and resetting the key. On one hand, the guide hole can limit the up-and-down movement of the guide post, so that the key can be ensured to move up and down stably along a set path; on the other hand, the guide hole can also limit the guide post to move greatly in the horizontal direction, so that the key is prevented from shaking in the horizontal direction.

In some embodiments, the key further comprises a light-transmissive key cover mounted on the key support, and a display device disposed between the light-transmissive key cover and the key support. The display device is arranged inside the key, and the content displayed by the display device is displayed by utilizing the light-transmitting key cover, so that the key has a display function, occupies a small space and does not need to be configured with an additional installation space for the display device.

In some embodiments, one of the light-transmitting key cover and the key support is provided with a second buckle, and the other is provided with a second buckling groove matched with the second buckle. The transparent key cover and the key support are buckled and connected, the structure is simple, and the assembly is convenient and firm.

In some embodiments, the display device is secured to the light transmissive key cover. In the assembling process, the display device can be fixed on the light-transmitting key cover firstly, and then the light-transmitting key cover is covered on the key support, so that the display device is not interfered by the key support in the assembling process of the display device, and the assembling is convenient. Moreover, the display device is directly fixed on the transparent key cover, so that the relative position of the display device and the transparent key cover is favorably ensured, the content displayed by the display device can be fully shown, and the influence on the display effect caused by shielding of one part of the display device is avoided.

In some embodiments, one of the light-transmissive button cover and the outer sidewall of the display device is provided with a third catch, and the other is provided with a third catch groove that mates with the third catch.

In the embodiments, the light-transmitting key cover and the display device are connected in a clamping manner, and the assembly is convenient and firm. And set up third buckle or third catching groove at display device's lateral wall, can not influence the content that the display device top shows to guarantee the display effect.

In some embodiments, the key assembly further comprises: the encoder comprises an inner ring fixed on the circuit board and an outer ring sleeved outside the inner ring and capable of rotating, and the switch piece is arranged in the inner ring; the knob is connected with the outer ring to drive the outer ring to rotate, and the key support is arranged in the inner ring and is movably connected with the circuit board up and down.

In these embodiments, the key assembly further includes an encoder and a knob, and the knob is connected to the outer ring of the encoder and can rotate the outer ring, thereby performing function selection. Make the key-press support in the inner circle of encoder and with circuit board swing joint from top to bottom, can carry on spacingly through the circuit board to the key-press support on the one hand, avoid the button to break away from the circuit board easily, on the other hand need not to set up the connecting piece that prevents the button and break away from in the inner circle, thereby be favorable to leaving sufficient space for the inside button that holds of inner circle.

In some embodiments, the key assembly further includes a sealing ring, a clamping groove is disposed on a side wall of the light-transmissive key cover, and the sealing ring is disposed in the clamping groove and pressed against an inner side wall of the knob.

In these embodiments, through the gap between the sealed button of sealing washer and the knob, play waterproof role, can effectively avoid external water, dust etc. to get into the product inside using this button subassembly through the gap, reduce the risk of electric shock, avoid the product inner structure to rust rotten because of soaking in water moreover, damage even, ensure the practical life of product. In addition, the side wall of the light-transmitting key cover is provided with the clamping groove, and the sealing ring is arranged in the clamping groove, so that on one hand, the sealing ring is limited by the side wall of the clamping groove, the sealing ring is prevented from moving up and down relative to the key and even falling off, and the installation firmness of the sealing ring is improved; on the other hand, the button is favorable for driving the sealing ring to synchronously move up and down, so that the waterproof effect in the button moving process is ensured.

In some embodiments, the sealing ring includes a ring main body and a sealing rib, the ring main body is sleeved in the clamping groove, the sealing rib is connected to the outer side wall of the ring main body and circumferentially distributed around the ring main body, and the sealing rib extrudes the inner side wall of the knob.

In these embodiments, the seal ring is made to include a ring body and a sealing rib that branches outwardly from an outer sidewall of the ring body. The main ring body is sleeved on the key, so that the installation stability of the sealing ring can be ensured. Make the inside wall looks butt of sealed muscle and knob, on the one hand can shutoff button and the gap between the knob, the sealed muscle of on the other hand branch relatively easily bends deformation for the circle main part, and is easy along with button and rotatory removal and deformation to can not excessively interfere reciprocating of button and the rotation of knob, avoid increasing knob dynamics and pressing power degree by a wide margin and influence the user and feel.

A second aspect embodiment of the present invention provides a liquid heating vessel comprising: according to the technical scheme, the key assembly comprises the key assembly, a base and a container body arranged on the base, wherein the key assembly is arranged on the base.

The liquid heating container provided by the embodiment of the present aspect has the beneficial effects of any one of the above technical solutions due to the key assembly of any one of the above technical solutions, which is not repeated herein.

Additional aspects and/or advantages of the present general inventive concept will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the general inventive concept.

Drawings

The above and other objects and features of the present invention will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic cross-sectional view of a key assembly according to a first embodiment of the present invention;

fig. 2 is a first exploded schematic view of a key assembly according to a first embodiment of the present invention;

fig. 3 is a second exploded schematic view of a key assembly according to the first embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a key assembly according to a second embodiment of the present invention;

fig. 5 is a first exploded schematic view of a key assembly according to a second embodiment of the present invention;

fig. 6 is a second exploded schematic view of a key assembly according to a second embodiment of the present invention;

fig. 7 is an exploded schematic view of a key assembly according to a third embodiment of the present invention;

fig. 8 is a first partially exploded schematic view of a key assembly according to a third embodiment of the present invention;

fig. 9 is a second partially exploded schematic view of a key assembly in accordance with a third embodiment of the present invention;

FIG. 10 is a schematic top view of a liquid heating vessel according to an embodiment of the present invention;

FIG. 11 is a schematic front view of a liquid heating vessel according to an embodiment of the present invention;

fig. 12 is a schematic longitudinal cross-sectional view of a liquid heating vessel according to an embodiment of the present invention.

Fig. 1 to 12 are numbered as follows:

10 keys, 110 first buckles, 120 guide columns, 130 light-transmitting key covers, 131 second buckling grooves, 132 clamping grooves, 133 third buckles, 134 support ribs, 140 key supports, 141 guide bulges, 142 second buckles, 143 trigger bulges, 150 display devices, 151 third buckling grooves, 160 sealing rings, 161 ring main bodies, 162 sealing ribs,

20 a return spring for returning the spring to the original position,

30 circuit boards, 310 jacks, 320 guide holes,

40 of the switching member is arranged in the casing,

50 encoder, 510 inner ring, 511 guiding groove, 520 outer ring, 521 fourth catching groove,

the first button 60, the second button 610,

70 liquid heating vessel, 710 vessel body, 720 base.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art after reviewing the disclosure of the present application. For example, the order of operations described herein is merely an example, and is not limited to those set forth herein, but may be changed as will become apparent after understanding the disclosure of the present application, except to the extent that operations must occur in a particular order. Moreover, descriptions of features known in the art may be omitted for clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided to illustrate only some of the many possible ways to implement the methods, devices, and/or systems described herein, which will be apparent after understanding the disclosure of the present application.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more.

Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein could also be referred to as a second element, component, region, layer or section without departing from the teachings of the examples.

In the specification, when an element such as a layer, region or substrate is referred to as being "on," "connected to" or "coupled to" another element, it can be directly on, connected to or coupled to the other element or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element, there may be no intervening elements present.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular is also intended to include the plural unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof. The term "plurality" means any number of two or more.

The definitions of the terms "upper", "lower", "top" and "bottom" in this application are all based on the orientation of the product when it is in a normal use state and is standing upright.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs after understanding the present invention. Unless explicitly defined as such herein, terms such as those defined in general dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and should not be interpreted in an idealized or overly formal sense.

Further, in the description of the examples, when it is considered that detailed description of well-known related structures or functions will cause a vague explanation of the present invention, such detailed description will be omitted.

A key assembly and a liquid heating container 70 provided by an embodiment of the present invention will be described below with reference to fig. 1 to 12.

As shown in fig. 1, 4 and 10, a first aspect embodiment of the present invention provides a key assembly, which includes a circuit board 30, a switch member 40 electrically connected to the circuit board 30, and a key 10 disposed above the switch member 40, the key 10 being capable of being pressed down to activate the switch member 40, the key 10 including a light-transmissive key cover 130, a key support 140, and a display device 150 disposed between the light-transmissive key cover 130 and the key support 140; the key holder 140 is provided with a first buckle 110, the circuit board 30 is provided with a jack 310, and the first buckle 110 passes through the jack 310 and is connected with the surface of the circuit board 30 away from the switch element 40 in a buckling manner under the condition that the key 10 is not pressed.

In the key assembly provided by the embodiment of the present invention, the key 10 can be pressed down to trigger the switch element 40 on the circuit board 30, so as to implement the corresponding function. The display device 150 is disposed inside the key 10, and the content displayed by the display device 150 is displayed by using the light-transmissive key cover 130, so that the key 10 has a display function and occupies a small space without configuring an additional installation space for the display device 150. In addition, the first buckle 110 is disposed on the key holder 140, so that the first buckle 110 passes through the insertion hole 310 of the circuit board 30, and when the key 10 is not pressed, the first buckle 110 can be buckled on the back surface of the circuit board 30, that is, the surface of the circuit board 30 facing away from the switch element 40, so as to fix the key 10 on the circuit board 30. On one hand, the structure is simple, the installation is stable, and the key 10 can be prevented from being easily separated from the circuit board 30; on the other hand, the back surface of the circuit board 30 may have a large space, which provides a sufficient moving space for the first buckle 110 to deform and displace to release the buckling state, thereby facilitating the detachment of the key 10 and facilitating the subsequent maintenance and replacement of the key 10.

In specific applications, when the key 10 needs to be pulled down, the circuit board 30 can be detached first, so that the first buckle 110 touching the back surface of the circuit board 30 is convenient to release the buckling state, and then the key 10 is pulled down. The key 10 can be directly pulled upwards without disassembling the circuit board 30, so that the first buckle 110 is deformed and displaced to release the buckling state. Compared with the scheme that the key 10 is fixed in the inner ring 510 of the encoder 50 and the structure in the inner ring 510 is complex and compact in the related art, the key 10 is limited on the circuit board 30 in the embodiment, and a corresponding connecting structure is not required to be arranged on the inner ring 510 to prevent the key 10 from being separated, so that the structure is simple, the dismounting is convenient, even if the key support 140 is inserted into the inner ring 510, the process of pulling out the inner ring 510 is smoother, and the probability of scratching or wearing the inner ring 510 can be reduced.

The transparent key cover 130 may be transparent or translucent. The light-transmissive button cover 130 may be made entirely of a light-transmissive material, or may be made of a light-transmissive material in one portion and an opaque material in another portion. As long as the content displayed by the display device 150 can be displayed.

In some embodiments, as shown in fig. 1 and 4, the key assembly further includes a return spring 20, the return spring 20 is disposed between the key holder 140 and the circuit board 30 in a pressed manner, the key holder 140 can press the return spring 20 to move downward to trigger the switch element 40, and the key holder 140 can also be reset under the elastic force of the return spring 20 and drive the first latch 110 to latch on the surface of the circuit board 30 away from the switch element 40.

In these embodiments, a spring is disposed between the key holder 140 and the circuit board 30, which is beneficial to improve the pressing feeling of the user and ensure that the key 10 can be reset. Moreover, the first latch 110 is advantageously stably fastened to the surface of the circuit board 30 away from the switch element 40 by the elastic force of the return spring 20, thereby ensuring the installation stability of the key 10.

In some embodiments, the number of the first fasteners 110 is multiple and is circumferentially spaced around the central axis of the key 10. The key 10 can be stably fixed on the circuit board 30 and cannot easily fall off from the circuit board 30. As shown in fig. 1 to 3, the number of the first hooks 110 is three, and the number of the first hooks 110 in fig. 7 to 9 is also three.

Of course, in other embodiments, the number of the first fasteners 110 may be one. Fig. 4 to 6 show that the number of the first hooks 110 is one.

In some embodiments, as shown in fig. 1 to 3, the key holder 140 is further provided with a guide post 120 extending vertically, the circuit board 30 is provided with a guide hole 320 matching with the guide post 120, and the guide post 120 is inserted into the guide hole 320 and can move up and down along the guide hole 320.

In these embodiments, the key 10 and the circuit board 30 are also matched with each other through the guide post 120 and the guide hole 320, and particularly, the guide post 120 is inserted into the guide hole 320 and moves up and down along the guide hole 320 during the pressing and resetting of the key 10. On one hand, the guide hole 320 can limit the up-and-down movement of the guide post 120, thereby ensuring that the key 10 can move up and down smoothly along a set path; on the other hand, the guiding hole 320 can limit the guiding column 120 to move greatly in the horizontal direction, so as to prevent the key 10 from shaking in the horizontal direction.

In a particular application, the cross-sectional shape of the guide post 120 matches the shape of the guide hole 320.

Regarding the connection manner of the light-transmissive button cover 130 and the button holder 140, in some embodiments, one of the light-transmissive button cover 130 and the button holder 140 is provided with a second latch 142, and the other is provided with a second latching groove 131 matched with the second latch 142. The transparent key cover 130 and the key support 140 are buckled and connected, and the structure is simple, and the assembly is convenient and firm. Specifically, as shown in fig. 2, 3, and 5 to 8, a second catching groove 131 is provided on the light-transmissive key cover 130, and a second catch 142 is provided on the key holder 140.

Regarding the installation manner of the display device 150, in some embodiments, the light-transmissive key cover 130 covers the key holder 140 and forms a receiving cavity for the display device 150 with the key holder 140, and the display device 150 is located in the receiving cavity for the display device 150 and fixed to the light-transmissive key cover 130.

In the assembling process, the display device 150 can be fixed on the transparent key cover 130, and then the transparent key cover 130 is covered on the key support 140, so that the display device 150 is not interfered by the key support 140 in the assembling process of the display device 150, and the assembling is convenient. Moreover, since the display device 150 is directly fixed on the transparent button cover 130, it is also beneficial to ensure the relative positions of the display device 150 and the transparent button cover 130, so as to ensure that the content displayed by the display device 150 can be fully shown, and avoid the influence on the display effect caused by shielding a part of the display device 150.

In a specific embodiment, one of the light-transmissive button cover 130 and the outer sidewall of the display device 150 is provided with a third catch 133, and the other is provided with a third catching groove 151 to be fitted with the third catch 133. The transparent key cover 130 and the display device 150 are connected in a clamping manner, and the assembly is convenient and firm. Moreover, the third clip 133 or the third clipping groove 151 is disposed on the outer sidewall of the display device 150, which does not affect the content displayed on the top of the display device 150, thereby ensuring the display effect.

Specifically, as shown in fig. 1 to 3 and 7, the third catch 133 is disposed on the light-transmissive button cover 130, and the third catch groove 151 is disposed on the display device 150. The light transmissive key cover 130 includes a top cover and a shroud extending downwardly from an edge of the top cover, at least a portion of the display device 150 being surrounded by the shroud.

Further, the third latch 133 includes a cantilevered latch portion, and a movable gap is formed between the latch portion and an inner sidewall of the surrounding plate. That is, the latch portion can be close to or far from the enclosing plate, which is beneficial to enable the display device 150 to extrude the latch portion to be inserted into the enclosing plate, and then the latch portion extrudes the display device 150 under the effect of the resilience force of the cantilever, thereby improving the installation firmness of the display device 150.

Or further, the third buckle 133 is a limiting convex rib arranged on the inner side wall of the enclosing plate. Simple structure and convenient processing.

In another specific embodiment, as shown in fig. 4 to 6, the third latch 133 is disposed on the light-transmissive button cover 130, but the third catching groove 151 is not disposed on the display device 150. But directly at the bottom edge of the display device 150 by the third catch 133.

As shown in fig. 2, 3, 5 and 6, a support rib 134 extending in the height direction of the key 10 may be provided on the inner side wall of the enclosure, and the support rib 134 presses the outer side wall of the display device 150. Fastening display device 150 in the bounding wall through brace rod 134, improving display device 150's installation firmness, avoiding display device 150 level to rock, avoid display device 150 to drop.

In some embodiments, as shown in fig. 1 and 4, the key holder 140 is substantially sleeve-shaped and hollow to reduce the weight of the key 10. The key holder 140 is further provided with a trigger protrusion 143, so that the trigger protrusion 143 extends from the inner sidewall of the key holder 140 to the middle of the key holder 140 and extends to the position right above the switch element 40, thereby realizing a trigger function.

In some embodiments, as shown in fig. 1 and 4, the key assembly further includes: the encoder 50, the encoder 50 includes the inner circle 510 fixed on circuit board 30 and the outer circle 520 sleeved outside the inner circle 510 and rotatable, the switch 40 is set in the inner circle 510; the knob 60, the knob 60 is connected with the outer ring 520 to drive the outer ring 520 to rotate, and the key support 140 is arranged in the inner ring 510 and is movably connected with the circuit board 30 up and down.

In these embodiments, the key assembly further includes an encoder 50 and a knob 60, and the knob 60 is connected to the outer ring 520 of the encoder 50 to rotate the outer ring 520, so as to select functions. The key holder 140 is movably connected with the circuit board 30 up and down in the inner ring 510 of the encoder 50, so that on one hand, the key holder 140 can be limited by the circuit board 30, and the key 10 is prevented from being easily separated from the circuit board 30, and on the other hand, a connecting piece for preventing the key 10 from being separated from the inner ring 510 is not required to be arranged, thereby being beneficial to leaving enough space for accommodating the key 10 in the inner ring 510. As for the connection manner of the key holder 140 and the circuit board 30, the connection manner of the first latch 110 and the jack 310 in the above-mentioned embodiment can be adopted.

In a specific application, for example, the key assembly is applied to the liquid heating container 70, as shown in fig. 10, a desired beverage, such as water, white fungus soup, mung bean soup, flower and fruit tea, can be selected by rotating the knob 60, and then the user presses the transparent key cover 130 to drive the key support 140 to move down to trigger the switch element 40 for confirmation. At this time, the circuit board 30 of the liquid heating container 70 may start a corresponding cooking process according to the activation of the encoder 50 and the switch member 40.

Of course, if the user wants to reserve cooking, the user may further rotate the knob 60 after activating the reservation button 10 to select the reserved time, and then press the button 10 again to activate the switch 40 for confirmation. At this time, the circuit board 30 may cook the beverage selected by the knob 60 according to the corresponding cooking program at the appointed time according to the triggering of the encoder 50 and the switch member 40. If the user wants to set the heat preservation time, the user can select the heat preservation time through the knob 60 before or after the cooking is finished, and confirm the heat preservation time through the switch member 40.

Of course, other selection functions may be provided for the knob 60, such as rotating the knob 60, adjusting the heating power, the heating duration, the holding time, and the like. During a cooking process, a plurality of cooking parameters can be selected by the knob 60 and confirmed or canceled by the switch member 40.

Moreover, in the process of rotating the knob 60, the display device 150 can display the parameters and the like selected by the knob 60 one by one, so as to ensure the accuracy of selection. Of course, the display device 150 may display only a part of the parameters.

Optionally, the display device 150 is an LED lamp. The preset time, heating temperature and other parameters can be displayed, and the operation of pressing the key 10 or rotating the knob 60 by the user can be fed back through the display lamp.

Alternatively, the display device 150 is a display screen, which can display various kinds of display, not limited to displaying numerical values.

In some embodiments, one of the outer sidewall of the key holder 140 and the inner sidewall of the inner ring 510 is provided with a guide protrusion 141, and the other is provided with a guide groove 511 to be fitted with the guide protrusion 141. Simple structure, convenient assembling, and can guarantee that key-press support 140 moves along the settlement route to guarantee that button 10 triggers switch member 40 accurately. In fig. 3, 6 to 9, it is shown that the outer side wall of the key holder 140 is provided with a guide protrusion 141, and the inner side wall of the inner ring 510 is provided with a guide groove 511.

In a specific application, the guiding protrusion 141 may be a rib or a snap.

In some embodiments, one of the inner sidewall of the knob 60 and the outer sidewall of the outer ring 520 is provided with a fourth catch 610, and the other is provided with a fourth catch groove 521 for cooperating with the fourth catch 610. Simple structure, convenient assembling can guarantee moreover that knob 60 drives outer lane 520 synchronous revolution through fourth buckle 610 and fourth catching groove 521. In fig. 1, 3, 4, and 6 to 9, it is shown that the inner side wall of the knob 60 is provided with a fourth catch 610, and the outer side wall of the outer ring 520 is provided with a fourth catch groove 521.

In some embodiments, as shown in fig. 1, 3, 4, 6 and 7, the key assembly further includes a sealing ring 160, the side wall of the light-transmissive key cover 130 is provided with a clamping groove 132, and the sealing ring 160 is disposed in the clamping groove 132 and pressed against the inner side wall of the knob 60.

In these embodiments, the sealing ring 160 seals the gap between the key 10 and the knob 60, so as to achieve waterproof effect, effectively prevent external water, dust, etc. from entering the interior of the product using the key assembly through the gap, reduce the risk of electric shock, prevent the internal structure of the product from rusting and deteriorating due to water immersion, even damage, and ensure the practical life of the product. In addition, the side wall of the transparent key cover 130 is provided with the clamping groove 132, and the sealing ring 160 is arranged in the clamping groove 132, so that on one hand, the sealing ring 160 is limited by the side wall of the clamping groove 132, the sealing ring 160 is prevented from moving up and down relative to the key 10 and even falling off, and the installation firmness of the sealing ring 160 is improved; on the other hand, the key 10 is beneficial to driving the sealing ring 160 to move up and down synchronously, thereby ensuring the waterproof effect in the moving process of the key 10.

In addition, the sealing ring 160 is usually constructed by an elastic material, and the application also defaults that the sealing ring 160 is constructed by an elastic material, so that even if the sealing ring 160 blocks a gap between the key 10 and the knob 60, the movement of the key 10 and the knob 60 is not excessively influenced, and the sealing ring only can be adaptively deformed along with the movement of the key 10 or the knob 60, thereby ensuring the function of the key assembly while ensuring the waterproof effect.

Optionally, the sealing ring 160 is a silicone sealing ring.

In some embodiments, as shown in fig. 1, 3, 4, 6, and 7, the sealing ring 160 includes a ring body 161 and a sealing rib 162, the ring body 161 is disposed in the slot 132, the sealing rib 162 is connected to an outer sidewall of the ring body 161 and circumferentially distributed around the ring body 161, and the sealing rib 162 presses against an inner sidewall of the knob 60.

In these embodiments, the seal ring 160 is made to include a ring body 161 and a sealing rib 162 that branches outwardly from the outer sidewall of the ring body 161. The ring main body 161 is fitted over the key 10, so that the mounting stability of the seal ring 160 can be ensured. The sealing ribs 162 are abutted to the inner side wall of the knob 60, so that gaps between the key 10 and the knob 60 can be blocked, and the branched sealing ribs 162 are easy to bend and deform relative to the ring main body 161 and are easy to deform along with the movement of the key 10 and the rotation, so that the up-and-down movement of the key 10 and the rotation of the knob 60 cannot be excessively interfered, and the influence on the hand feeling of a user due to the fact that the force and the pressing force of the knob 60 are greatly increased is avoided.

As shown in fig. 10 to 12, a second aspect embodiment of the present invention provides a liquid heating vessel 70, comprising: a key assembly as in any of the previous embodiments, a base 720, and a container body 710 disposed on the base 720, the key assembly being disposed on the base 720. The liquid heating container 70 provided in this embodiment has the advantages of any of the above embodiments due to the key assembly of any of the above embodiments, and therefore, the description thereof is omitted here for brevity.

Further, the container body 710 is coupled to the base 720 in a unitary structure. In this case, chassis 720 has a substantially cylindrical shape, and the key assembly is provided on a side wall of chassis 720.

Or further, as shown in fig. 10-12, the container body 710 is removably attached to the base 720. In this case, the base 720 has a panel region and a mounting region, the panel region is located on one side of the mounting region in the horizontal direction, the container body 710 is located in the mounting region, and the key assembly is located in the panel region.

In some embodiments, the liquid heating vessel 70 may be a kettle, a health preserving kettle, a brewing device, or the like.

Although the embodiments of the present invention have been described in detail above, those skilled in the art may make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the utility model. It will be understood that such modifications and variations will still fall within the spirit and scope of the embodiments of the utility model as defined in the appended claims, as seen by those skilled in the art.

Claims (10)

1. The key assembly is characterized by comprising a circuit board (30), a switch member (40) electrically connected to the circuit board (30) and a key (10) arranged above the switch member (40), wherein the key (10) can be pressed down to trigger the switch member (40), the key (10) comprises a key support (140), a first buckle (110) is arranged on the key support (140), a jack (310) is arranged on the circuit board (30), the first buckle (110) penetrates through the jack (310), and the key (10) is buckled and connected with the surface of the circuit board (30) deviating from the switch member (40) under the condition that the key (10) is not pressed.

2. The key assembly according to claim 1, further comprising a return spring (20), wherein the return spring (20) is disposed between the key holder (140) and the circuit board (30) in a pressed manner, the key holder (140) can press the return spring (20) to move downward to trigger the switch member (40), the key holder (140) can also be reset under the elastic force of the return spring (20) and drive the first latch (110) to latch on the surface of the circuit board (30) facing away from the switch member (40).

3. The key assembly of claim 1, wherein the number of the first fasteners (110) is multiple and is circumferentially spaced around the central axis of the key (10).

4. The key assembly of claim 1, wherein the key holder (140) further comprises a guide post (120) extending vertically, the circuit board (30) comprises a guide hole (320) matching with the guide post (120), and the guide post (120) is inserted into the guide hole (320) and can move up and down along the guide hole (320).

5. A key assembly according to any one of claims 1-4, characterized in that said key (10) further comprises a light-transmissive key cover (130) mounted on said key-holder (140), and a display device (150) arranged between said light-transmissive key cover (130) and said key-holder (140); one of the light-transmitting key cover (130) and the key support (140) is provided with a second buckle (142), and the other is provided with a second buckle position groove (131) matched with the second buckle (142).

6. The key assembly of claim 5, wherein said display device (150) is secured to said light transmissive key cover (130);

one of the outer side walls of the light-transmitting key cover (130) and the display device (150) is provided with a third buckle (133), and the other outer side wall is provided with a third buckling groove (151) matched with the third buckle (133).

7. The key assembly of claim 5, further comprising:

the encoder (50) comprises an inner ring (510) fixed on the circuit board (30) and an outer ring (520) sleeved outside the inner ring (510) in a rotatable manner, and the switch piece (40) is arranged in the inner ring (510);

the knob (60) is connected with the outer ring (520) to drive the outer ring (520) to rotate, and the key support (140) is arranged in the inner ring (510) and is movably connected with the circuit board (30) up and down.

8. The key assembly of claim 7, further comprising a sealing ring (160), wherein a clamping groove (132) is disposed on a side wall of the light-transmissive key cover (130), and the sealing ring (160) is disposed in the clamping groove (132) and pressed against an inner side wall of the knob (60).

9. The key assembly of claim 8, wherein the sealing ring (160) comprises a ring main body (161) and a sealing rib (162), the ring main body (161) is sleeved in the clamping groove (132), the sealing rib (162) is connected to an outer side wall of the ring main body (161) and circumferentially distributed around the ring main body (161), and the sealing rib (162) presses an inner side wall of the knob (60).

10. A liquid heating vessel (70), characterized in that the liquid heating vessel (70) comprises: a key assembly as claimed in any one of claims 1 to 9, a base (720) and a container body (710) disposed on the base (720), the key assembly being disposed on the base (720).

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