CN107275140B

CN107275140B - Starting key, household appliance and mechanical starting method thereof

Info

Publication number: CN107275140B
Application number: CN201610217941.XA
Authority: CN
Inventors: 王健; 李现昌; 孙鹏举; 刘海飞; 施衍奇
Original assignee: Qingdao Haier Washing Machine Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd
Priority date: 2016-04-08
Filing date: 2016-04-08
Publication date: 2021-02-26
Anticipated expiration: 2036-04-08
Also published as: CN107275140A

Abstract

The invention relates to a start button, a household appliance and a mechanical start method thereof. The start button includes a button body, and the button body includes a key cap and a key post connected with the key cap, and the key posts are provided with mutually spaced The first card slot and the second card slot of the button post are slidably provided with a locking spring between the first card slot and the second card slot, and the button post can detachably actuate the micro switch. The beneficial effects of the present invention are as follows: through the start button installed on the door body of the household appliance, when the door body is closed, the machine cannot be started immediately, and the start button must be pressed again, and the machine can be started only after the micro switch inside is touched. The start-up of the mechanical household appliance is completed through two-step mechanical actions, the structure is simple, the operation is convenient, the safety is high, and the utility model is economical and practical.

Description

Starting key, household appliance and mechanical starting method thereof

Technical Field

The invention relates to the field of household appliances, in particular to a starting key, a household appliance with the starting key and a mechanical starting method of the household appliance with the starting key.

Background

At present, in order to avoid potential safety hazards caused by sudden starting when the household appliance is closed in structures such as a door body and the like in the market, a plurality of safety protection measures are taken in the prior art, and particularly, the household appliance is controlled in a mode of adopting a starting button in the aspect of a washing machine or a clothes dryer.

Especially for a clothes dryer or a washing machine with a drum volume larger than 90L, according to the IEC60335 safety standard requirement, the machine cannot be started immediately after a machine door is closed, and the machine can be started only by pressing a start key, so that the problem that a child drills into the drum and the machine is started immediately after the door is closed to cause injury is avoided.

However, it is common practice to control the start-up of the machine by means of a computer board or relay on the machine. When the machine door is closed, the micro switch inside is touched, and then the start button on the control panel is pressed, so that the machine starts to operate.

In the prior art, a computer board controls the starting of a machine, firstly, a microswitch in the door body is triggered when the door body is closed, after a starting key is pressed down, the computer board outputs voltage to control the machine to start running after receiving a starting signal, and the whole process is controlled to start through computer board software. If the software is unstable or malfunctions, potential safety hazards exist. In the future, the software authentication is required for the start key, which leads to an increase in the development period and development cost of the software.

In the prior art, chinese patent application No. 201210120938.8 discloses a gate switch control circuit, which includes: the door switch is connected in series on the main line and is used for being opened and closed corresponding to the opening and closing state of the machine door; the relay comprises a driving coil connected in series with the main line and a control switch connected in series with the external line and is used for controlling the external line to be communicated when the main line is electrified; the starting key is used for generating a starting trigger signal when the door switch is closed and the main line is opened; a door switch detection unit for detecting the open and closed states of the door switch and providing corresponding door switch state signals; the control unit is connected in series with the main line and used for realizing the on-off of the main line at the connected position according to the door switch state signal; and the self-holding unit is connected in series with the main line and is used for communicating the main line and holding the communication state after receiving a starting trigger signal.

Chinese patent application No. 200810198471.2 discloses a door lock for washing machine cover and a washing machine using the door lock, wherein the washing machine includes a start button and a control program including steps of powering on the washing machine, suspending during operation or pressing the start button after power off to perform washing or dewatering operation; when the washing machine is powered on or resumes running after pause in running or power supply is cut off, the electromagnetic coil is powered on to drive the armature driven bolt to an unlocking position; and starting the key to act, and electrifying the electromagnetic coil to drive the armature to drive the bolt to a locking position.

Based on this aspect, there is a need to provide a new start button, which can control the start of the household appliance through a mechanical structure, so as to solve the technical problems existing in the prior art.

Disclosure of Invention

The invention provides a starting key which can control the starting of a household appliance through a mechanical structure to finish the mechanical starting mode of the household appliance, and has the advantages of simple structure, convenience in operation, economy and practicability.

The invention provides a starting key which comprises a key body, wherein the key body comprises a key cap and a key column connected with the key cap, a first clamping groove and a second clamping groove which are mutually separated are arranged on the key column, a locking spring is arranged on the key column in a sliding mode between the first clamping groove and the second clamping groove, and the key column is detachably connected with a micro switch. When the keycap is pushed by force, the locking spring slides on the key post, when the locking spring tightly clamps the first clamping groove, the key post does not touch the micro switch, and when the locking spring tightly clamps the second clamping groove, the key post touches the micro switch.

Further, the button post includes a first cylindrical portion arranged at the front end, a second cylindrical portion arranged at the middle part and a third cylindrical portion arranged at the rear end, the first cylindrical portion and the second cylindrical portion form the first clamping groove therebetween, and the second cylindrical portion and the third cylindrical portion form the second clamping groove therebetween.

Preferably, the first cylindrical portion is provided with a first protruding portion, and the diameter of the first protruding portion is larger than the diameter of the other portions of the first cylindrical portion.

Preferably, a second protruding portion is arranged on the second cylindrical portion, and the diameter of the second protruding portion is larger than the diameter of other portions on the second cylindrical portion.

Preferably, the third cylindrical portion includes a connection post and a tapered portion, and the diameter of the tapered portion from the second slot to the connection post is gradually increased.

The invention also provides a household appliance, which comprises a door body, an appliance body and a key body arranged on the door body, wherein the key body comprises a keycap arranged outside the door body and a key column extending into the door body, and the appliance body is provided with a microswitch; a first clamping groove and a second clamping groove are formed in the key column, and a locking spring is fixedly arranged on the machine body; when the locking spring clamps the first clamping groove, the key column does not touch the microswitch, and when the locking spring clamps the second clamping groove, the key column touches the microswitch.

Furthermore, a groove matched with the key body is formed in the door body, and a spring is arranged between the keycap and the door body in the groove.

Furthermore, when the key body is pushed by force, the locking spring slides into the second clamping groove from the first clamping groove.

The invention also provides a mechanical starting method of the household appliance, which comprises the following steps:

1) closing a door body of the household appliance, clamping the first clamping groove by the locking spring, and not touching the microswitch by the key column;

2) the key body is pushed, the locking spring clamps the second clamping groove, and the key column touches the micro switch;

3) the microswitch is connected with a control circuit of the household appliance, and the household appliance is started.

Further, when the door body is opened, the locking spring is separated from the key column.

The invention has the beneficial effects that: through installing the start button on the domestic appliance door body, when the door body was closed, the machine can not start at once, must press this start button again, touches the inside micro-gap switch after, the machine could start, accomplishes mechanical type through two steps of mechanical actions from this and starts, simple structure, convenient operation, security height and economical and practical.

Drawings

Fig. 1 is a schematic structural diagram of a start key according to an embodiment of the present invention;

fig. 2 is a schematic view of a state of a door body of a household appliance according to an embodiment of the present invention when the door body is closed;

fig. 3 is a schematic diagram of a state when the start key is pressed according to the embodiment of the present invention.

In the figure:

1. a key body; 2. a keycap; 3. a key post; 4. a first card slot; 5. a second card slot; 6. a locking spring; 7. a microswitch; 8. a first cylindrical portion; 9. a first boss portion; 10. a second cylindrical portion; 11. a second boss portion; 12. a third cylindrical portion; 13. connecting columns; 14. a gradual change portion; 15. a door body; 16. a groove; 17. a through hole; 18. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

As shown in fig. 1, the start button according to the embodiment of the present invention includes a button body 1, where the button body 1 includes a key cap 2 and a button post 3 connected to the key cap 2, the button post 3 is provided with a first slot 4 and a second slot 5 that are spaced from each other, a locking spring 6 is slidably disposed on the button post 3 between the first slot 4 and the second slot 5, the button post 3 is detachably connected to a micro switch 7, when the key cap 2 is pushed by a force, the locking spring 6 slides on the button post 3, when the locking spring 6 tightly clamps the first slot 4, the button post 3 does not trigger the micro switch 7, and when the locking spring 6 tightly clamps the second slot 5, the button post 3 triggers the micro switch 7.

The key post 3 includes a first cylindrical portion 8 disposed at the front end, a second cylindrical portion 10 disposed at the middle portion, and a third cylindrical portion 12 disposed at the rear end, the first cylindrical portion 8 and the second cylindrical portion 10 form the first engaging groove 4 therebetween, and the second cylindrical portion 10 and the third cylindrical portion 12 form the second engaging groove 5 therebetween.

In one embodiment, the first cylindrical portion 8 is provided with a first protruding portion 9, and the diameter of the first protruding portion 9 is larger than the diameter of other portions of the first cylindrical portion 8; a second convex part 11 is arranged on the second cylindrical part 10, and the diameter of the second convex part 11 is larger than that of other parts on the second cylindrical part 10; the third cylindrical portion 12 includes an attachment post 13 and a tapered portion 14, and the tapered portion 14 has a diameter gradually increasing from the second slot 5 to the attachment post 13. The shape of the connecting column 13 includes a cylinder, a square column, and the like.

The cylindrical structure of the key column ensures that the locking spring 6 can slide smoothly on the key column without dead angle and blockage. 8 front ends of first cylindricality portion are the toper structure, guarantee to press the button post to insert in locking spring 6, and first bellying 9 diminishes gradually to the diameter of first draw-in groove, and first draw-in groove 4 diminishes gradually to 11 diameters of second bellying, and second bellying 11 diminishes gradually to 5 diameters of second draw-in groove, gradual change portion 14 is followed second draw-in groove 5 arrives the diameter grow gradually of spliced pole 13 position. The gradual change ensures that the locking spring 6 slides into the second clamping groove 5 from the first clamping groove 4 when the key body 1 is pushed by force application, and can play a role in buffering, so that the occurrence of mechanical vibration and other conditions is avoided.

As shown in fig. 2-3, a household appliance according to an embodiment of the present invention includes a door body 15, a body, and a key body 1 disposed on the door body 15, where the key body 1 includes a key cap 2 disposed outside the door body 15 and a key post 3 extending into the door body 15, and the body is provided with a micro switch 7; a first clamping groove 4 and a second clamping groove 5 are formed in the key column 3, and a locking spring 6 is fixedly arranged on the machine body; when the locking spring 6 clamps the first clamping groove 4, the key column 3 does not touch the micro switch 7, and when the locking spring 6 clamps the second clamping groove 5, the key column 3 touches the micro switch 7.

The key structure comprises a key body 1, a key cap 2, a door body 15, a spring 18, a through hole 17 and a connecting column 13 of a third column-shaped part 12, wherein the door body 15 is provided with a groove 16 matched with the key body 1, the spring 18 is arranged between the key cap 2 and the door body 15 in the groove 16, and the connecting column 13 of the third column-shaped part 12 slides in the through hole 17.

The mechanical starting method of the household appliance comprises the following steps:

When the door is opened, the locking spring is separated from the key column.

Through the starting key arranged on the door body of the household appliance, when the door body is closed, the machine cannot be started immediately, the starting key is pressed again, and the machine can be started only after the micro switch in the starting key is touched, so that the mechanical starting is completed through two mechanical actions.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

The start key, the household appliance with the start key, and the mechanical start method of the household appliance with the start key provided by the present invention are introduced in detail, and specific examples are applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be a change in the specific implementation and application scope, and in summary, the content of the present specification is only an implementation of the present invention, and not a limitation to the patent scope of the present invention, and all equivalent structures or equivalent flow transformations made by the content of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the patent protection scope of the present invention, and should not be construed as a limitation to the present invention.

Claims

1. An activation key, comprising a key body (1), characterized in that: the key body (1) comprises a key cap (2) and a key post (3) connected with the key cap (2), so that the The button column (3) is provided with a first card slot (4) and a second card slot (5) spaced apart from each other, and the first card slot (4) and the second card slot (5) on the button column (3) A locking spring (6) is slidably arranged therebetween, and the button post (3) can detachably actuate the microswitch (7); the button post (3) includes a first cylindrical portion (8) arranged at the front end, The second cylindrical portion (10) in the middle and the third cylindrical portion (12) at the rear end, the first cylindrical portion (8) and the second cylindrical portion (10) form the first cylindrical portion (10). a clamping slot (4), the second clamping slot (5) is formed between the second cylindrical part (10) and the third cylindrical part (12); the first cylindrical part (8) A first protruding part (9) is provided on the upper part, and the diameter of the first protruding part (9) is larger than the diameter of other parts on the first cylindrical part (8); the second cylindrical part (10) ) is provided with a second raised portion (11), the diameter of the second raised portion (11) is larger than the diameter of other parts on the second cylindrical portion (10); the third cylindrical portion ( 12) comprising a connecting column (13) and a gradual change portion (14), the diameter of the gradual change portion (14) gradually increases from the second clamping groove (5) to the position of the connecting column (13).

2. A household appliance comprising a door body (15), a body and a key body (1) arranged on the door body (15), characterized in that the key body (1) comprises a key cap (2) and a key post (3) connected with the key cap (2), the key post (3) is provided with a first slot (4) and a second slot (5) spaced apart from each other, and the key post ( 3) A locking spring (6) is slidably arranged between the first card slot (4) and the second card slot (5), and the button post (3) is releasably connected to the microswitch (7), wherein, The door body (15) is provided with a groove (16) that cooperates with the key body (1), and the groove (16) is inside the keycap (2) and the door body (15). A spring (18) is arranged between them; when the key cap (2) is pushed by a force, the locking spring (6) slides from the first slot (4) into the second slot (5) .

3. The mechanical starting method of a household appliance according to claim 2, wherein the method comprises the following steps:

1) When closing the door of the household appliance, the locking spring locks the first card slot, and the button post does not touch the micro switch;

2) Push the button body, the locking spring locks the second slot, and the button post triggers the micro switch;

3) The micro switch is connected to the control circuit of the household appliance, and the household appliance starts.

4 . The mechanical starting method of a household appliance according to claim 3 , wherein when the door body is opened, the locking spring is separated from the key post. 5 .