Door lock detection device of electric appliance and dish washing machine

Abstract

The embodiment of the utility model discloses a door lock detection device of an electric appliance and a dish washing machine. The door lock detection device is located outside a cavity of the electric appliance and arranged in a shell of the electric appliance. The door lock detection device comprises a door lock state detection device and a door body assembly; the door body assembly comprises a connecting device and an elastic device; one end of the connecting device is fixedly connected with the elastic device, and the other end is fixedly connected with a door body of the electric appliance; the door lock state detection device is located between the elastic device and the connecting device and arranged at the position close to the elastic device. The door lock state detection device comprises a detection signal transmitting unit and a detection signal receiving unit, and the detection signal transmitting unit and the detection signal receiving unit are oppositely arranged. The device detects the opening and closing state of the electrical appliance door body through the door body assembly and the door lock state detection device, and has the advantages of high sensitivity, long service life and mechanical durability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric appliance door lock, in particular to a door lock detection device of electric appliance and a dishwasher. BACKGROUND

[0002] The washing type household appliance has door lock detection. The door lock catch is located on the door body. When the door is closed, the lock catch will abut against the micro switch to make the circuit conductive. The main control MCU (Microcontroller Unit) detects and judges the state of the door lock. Although this conventional door switch detection method can conveniently detect the door switch signal, the micro switch may have mechanical wear, insufficient lubrication, spring fatigue and other problems after long-term use, which may cause the micro switch to fail to detect the opening and closing of the door. The micro switch may also be stuck with foreign matter, causing the micro switch to always be connected, and the door lock detection of the electric appliance to be abnormal. Therefore, there is an urgent need for a new door lock detection device of electric appliance to solve the above problems. CONTENT OF THE UTILITY MODEL

[0003] To solve the technical problem, the technical scheme provided by the present application is as follows:

[0004] On the one hand, the utility model provides a door lock detection device of electric appliance, the door lock detection device is located outside the cavity of electric appliance, and is arranged in the shell of electric appliance;The door lock detection device includes door lock state detection device and door body assembly;

[0005] The door body assembly includes a connecting device and an elastic device;One end of the connecting device is fixedly connected with the elastic device, and the other end is fixedly connected with the door body of the electric appliance;

[0006] The door lock state detection device is located between the elastic device and the connecting device, and is arranged close to the elastic device;The door lock state detection device includes a detection signal emitting unit and a detection signal receiving unit, the detection signal emitting unit is arranged on one side of the connecting device, the detection signal receiving unit is arranged on the other side of the connecting device, and the detection signal emitting unit and the detection signal receiving unit are oppositely arranged.

[0007] In some possible implementation manners, the connecting device includes a sliding unit and a connecting unit;The sliding unit is in sliding connection with the connecting unit;

[0008] One end of the connecting unit is fixedly connected with the elastic device, and the other end is fixedly connected with the door body of the electric appliance.

[0009] In some possible implementation manners, the sliding unit includes a first sliding unit and a second sliding unit;

[0010] The first sliding unit is fixedly arranged on the cavity of the electric appliance and is connected through the connecting unit and the second sliding unit.

[0011] The second sliding unit is fixedly arranged between the first sliding unit and the elastic device.

[0012] In some possible embodiments, the door lock state detection device is arranged between the second sliding unit and the elastic device and is close to the elastic device.

[0013] The detection signal emitting unit is arranged on one side of the connecting unit, and the detection signal receiving unit is arranged on the other side of the connecting unit.

[0014] In some possible embodiments, when the opening and closing angle of the door body of the electric appliance is a preset angle, the length variation of the elastic device is a first length.

[0015] The distance between the door lock state detection device and the elastic device is the first length.

[0016] In some possible embodiments, the elastic device further comprises an elastic device connecting piece.

[0017] The elastic device is fixedly connected with the cavity of the electric appliance through the elastic device connecting piece.

[0018] In some possible embodiments, the door lock state detection device is an optoelectronic device, the detection signal emitting unit is a light emitting end, and the detection signal receiving unit is a light receiving end.

[0019] In some possible embodiments, the elastic device is spring steel.

[0020] In some possible embodiments, the door lock detection device further comprises a control unit, and the control unit is electrically connected with the door lock state detection device.

[0021] In another aspect, the application further provides a dishwasher comprising the door lock detection device of the electric appliance.

[0022] The electric appliance provided by the application has the following beneficial effects:

[0023] The utility model provides a kind of door lock detection device of electric appliance, door lock detection device is located the cavity outside of electric appliance, and it is set in the shell of electric appliance;Door lock detection device includes door lock state detection device and door body component;Door body component includes connecting device and elastic device;One end of connecting device and elastic device fixed connection, the other end and the door body of electric appliance fixed connection;Elastic device and the cavity of electric appliance fixed connection;Door lock state detection device is located between elastic device and connecting device, and it is set in the position close to elastic device;Door lock state detection device includes detection signal transmitting unit and detection signal receiving unit, detection signal transmitting unit is set in the side of connecting device, detection signal receiving unit is set in the other side of connecting device, and detection signal transmitting unit and detection signal receiving unit are oppositely arranged.The above-mentioned device detects the opening and closing state of electric appliance door body by door body component and door lock state detection device, specifically, door lock state detection device is by oppositely arranged detection signal transmitting unit and detection signal receiving unit to emit detection signal and receive detection signal, when door lock state detection device detects elastic device, judge door body to be open door state, when door lock state detection device detects connecting device, judge door body to be closed door state, i.e. door body locking state.Detect the door lock state by the above-mentioned door lock state detection device, with the advantages of high sensitivity, long service life, mechanical durable. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the utility model embodiment, the following will be briefly introduced the drawings needed to be used in embodiment description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0025] Figure 1 It is the first structure schematic view of the door lock detection device of electric appliance provided by the utility model embodiment;

[0026] Figure 2 It is the second structure schematic view of the door lock detection device of electric appliance provided by the utility model embodiment;

[0027] Figure 3 It is the third structure schematic view of the door lock detection device of electric appliance provided by the utility model embodiment;

[0028] Among them, the corresponding figure mark in drawing is:

[0029] 1-the shell of electric appliance;

[0030] 2-the cavity of electric appliance;

[0031] 3-door body;

[0032] 4 - door lock state detection device; 41 - detection signal transmitting unit; 42 - detection signal receiving unit;

[0033] 5 - door body assembly; 51 - connecting device; 511 - sliding unit; 5111 - first sliding unit; 5112 - second sliding unit; 512 - connecting unit; 52 - elastic device; 521 - elastic device connecting piece;

[0034] 6 - control unit. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0036] The term "one embodiment" or "an embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one implementation of the application. In the description of the application, it should be understood that the terms "upper", "lower", "top", "bottom", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features referred to. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein.

[0037] In one aspect, as Figure 1The utility model discloses a door lock detection device of electric appliance, the door lock detection device is located the cavity 2 outside of electric appliance, and set up in the shell 1 of electric appliance, the door lock detection device includes door lock state detection device 4 and door body subassembly 5, the door body subassembly 5 includes connecting device 51 and elastic device 52, one end of connecting device 51 with elastic device 52 fixed connection, and the other end with the door body 3 of electric appliance fixed connection, the door lock state detection device 4 is located between elastic device 52 and connecting device 51, and set up in the position close to elastic device 52, the door lock state detection device 4 includes detection signal transmitting unit 41 and detection signal receiving unit 42, detection signal transmitting unit 41 set up in one side of connecting device 51, detection signal receiving unit 42 set up in the other side of connecting device 51, and detection signal transmitting unit 41 with detection signal receiving unit 42 opposite setting.

[0038] Exemplarily, the electric appliance in the utility model embodiment includes shell 1 and cavity 2, wherein the cavity 2 is the working cavity of the electric appliance, for example, the washing cavity of the washing electric appliance; the shell 1 is the shell of the electric appliance, for wrapping the cavity and other parts of the electric appliance, for example, the electric wire, the control unit 6, etc.

[0039] The door lock detection device includes the door lock state detection device 4 and the door body subassembly 5 arranged outside the cavity. Specifically, the door body subassembly 5 includes the connecting device 51 and the elastic device 52; the connecting device 51 is used for connecting the door body 3 and the elastic device 52, so that one end of the connecting device 51 is fixedly connected with the elastic device 52, and the other end is fixedly connected with the door body 3 of the electric appliance. The above-mentioned door body subassembly 5 is arranged outside the cavity 2 of the electric appliance and in the shell 1 of the electric appliance, and is used for controlling the opening and closing of the door body 3.

[0040] Optionally, the elastic device 52 is fixedly connected with the cavity (as shown in the figure), or the elastic device 52 is fixedly connected with the shell (not shown in the figure). Figure 2

[0041] Optionally, the connecting device 51 and the elastic device 52 are used for providing the door opening force and the rebound force to the door body 3, so that the user does not need to bear the weight of the door body 3 in the process of opening and closing the door. In the door opening process, the door body 3 drives the connecting device 51 to move towards the door body 3, the length of the connecting device 51 does not change, and the connecting device 51 drives the elastic device 52 to stretch; in the door closing process, the door body 3 drives the connecting device 51 to move towards the elastic device 52, the length of the connecting device 51 does not change, so that the elastic device 52 contracts, and after the door is completely closed, the elastic device 52 contracts to the natural state (i.e., the initial length of the elastic device 52).

[0042] Figure 1 ​​As shown, the door lock state detection device 4 comprises a detection signal transmitting unit 41 and a detection signal receiving unit 42, the detection signal transmitting unit 41 is arranged on one side of the connecting device 51, the detection signal receiving unit 42 is arranged on the other side of the connecting device 51, and the detection signal transmitting unit 41 and the detection signal receiving unit 42 are oppositely arranged. Specifically, the detection signal transmitting unit 41 is used to transmit a detection signal, and the detection signal receiving unit 42 is used to receive the detection signal carrying a detection result. The door lock state detection device 4 is installed at a position close to the connecting device 51 and the elastic device 52, and the detection signal transmitting unit is optionally installed at the upper end of the connecting device 51, and the detection signal receiving unit 42 is installed at the lower end, so that when the door lock state detection device 4 detects the connecting device 51, it is determined that the door body 3 is closed; when the door lock state detection device 4 detects the elastic device 52, it is determined that the door body 3 is opened, i.e. the door lock is opened, thereby realizing the detection of the door lock state of the electric appliance.

[0043] In this embodiment, a new door lock state detection device 4 and a method are disclosed. The above-mentioned device detects the opening and closing state of the door body 3 of the electric appliance through the door body assembly 5 and the door lock state detection device 4. Specifically, the door lock state detection device 4 transmits and receives detection signals through the oppositely arranged detection signal transmitting unit 41 and the detection signal receiving unit 42, and when the door lock state detection device 4 detects the elastic device 52, it is determined that the door body 3 is in an open state, and when the door lock state detection device 4 detects the connecting device 51, it is determined that the door body 3 is in a closed state, i.e. the door body 3 is in a locked state. The above-mentioned door lock state detection device 4 has the advantages of high sensitivity, long service life and mechanical durability.

[0044] As an optional embodiment, when the opening and closing angle of the door body 3 of the electric appliance is a preset angle, the length change amount of the elastic device 52 is a first length.

[0045] The distance between the door lock state detection device 4 and the elastic device 52 is the first length.

[0046] Exemplarily, the opening and closing angle of the door body 3 of the electric appliance refers to the included angle between the current position of the door body 3 and the closed position of the door body 3, which can also be called the opening and closing angle of the door body 3. When the opening and closing angle of the door body 3 is a preset angle, the length change amount of the corresponding elastic device 52, i.e. the distance between the door lock state detection device 4 and the elastic device 52, is set to the first length.

[0047] Optionally, the preset angle can be any angle greater than 0.

[0048] In this embodiment, by setting the distance between the door lock state detection device 4 and the elastic device 52 to be equal to the length change amount of the elastic device 52 when the door body 3 of the electrical appliance is opened by a preset angle, it can be ensured that the door body 3 of the electrical appliance is recognized by the door lock state detection device 4 when it is opened to the preset angle within the set sensitivity range, thereby improving the sensitivity of the door lock detection device.

[0049] As an optional embodiment, as shown in Figure 2 The connecting device 51 comprises a sliding unit 511 and a connecting unit 512; the sliding unit 511 is in sliding connection with the connecting unit 512; one end of the connecting unit 512 is fixedly connected with the elastic device 52, and the other end is fixedly connected with the door body 3 of the electrical appliance.

[0050] As an optional embodiment, as shown in Figure 2 The connecting device 51 comprises a sliding unit 511 and a connecting unit 512, and the connecting unit 512 is fixedly connected with the elastic device 52 at one end and with the door body 3 of the electrical appliance at the other end through the sliding unit 511.

[0051] Optionally, the sliding unit 511 can be a roller, a guide wheel or the like.

[0052] Optionally, the connecting unit 512 can be a pull rope.

[0053] In this embodiment, the connecting unit 512 and the sliding device keep the opening force and the rebound force of the door body 3 of the electrical appliance, so that the user does not need to bear the weight of the door body 3, which not only improves the user experience, but also facilitates the subsequent determination of the position of the door lock state detection device 4 based on the deformation amount of the elastic device 52 during the opening and closing of the door body 3, thereby indirectly improving the detection accuracy of the door lock state.

[0054] As an optional embodiment, as shown in Figure 3 The sliding unit 511 comprises a first sliding unit 5111 and a second sliding unit 5112.

[0055] The first sliding unit 5111 is fixedly arranged on the cavity 2 of the electrical appliance and connected with the connecting unit 512 and the second sliding unit 5112.

[0056] The second sliding unit 5112 is fixedly arranged between the first sliding unit 5111 and the elastic device 52.

[0057] As an optional embodiment, the sliding unit 511 comprises a first sliding unit 5111 and a second sliding unit 5112, and the first sliding unit 5111 and the second sliding unit 5112 are used to improve the sensitivity of the movement of the connecting unit 512 driven by the door body 3. As an optional embodiment, the sliding unit 511 comprises a first sliding unit 5111 and a second sliding unit 5112, and the first sliding unit 5111 and the second sliding unit 5112 are used to improve the sensitivity of the movement of the connecting unit 512 driven by the door body 3.

[0058] Optionally, the line between the top of the first sliding unit 5111 and the top of the second sliding unit 5112 is parallel to the cavity 2 of the electrical appliance.

[0059] As an optional embodiment, the door lock state detection device 4 is arranged between the second sliding unit 5112 and the elastic device 52, and close to the elastic device 52.

[0060] Among them, the detection signal transmitting unit 41 is arranged on one side of the connecting unit 512, and the detection signal receiving unit 42 is arranged on the other side of the connecting unit 512.

[0061] Exemplarily, as shown in Figure 2 The door lock state detection device 4 is arranged between the second sliding unit 5112 and the elastic device 52, and the distance between the door lock state detection device 4 and the elastic device 52 is the first length. Among them, the detection signal transmitting unit 41 is arranged on one side of the connecting unit 512, and the detection signal receiving unit 42 is arranged on the other side of the connecting unit 512.

[0062] Preferably, the detection signal transmitting unit 41 is arranged above the connecting unit 512, and the detection signal receiving unit 42 is arranged below the connecting unit 512.

[0063] As an optional embodiment, as shown in Figure 2 and Figure 3 The elastic device 52 further comprises an elastic device connecting piece 521.

[0064] The elastic device 52 is fixedly connected with the cavity 2 of the electrical appliance through the elastic device connecting piece 521.

[0065] Exemplarily, as shown in Figure 2 The elastic device connecting piece 521 is further arranged to fixedly connect the elastic device 52 and the cavity 2 of the electrical appliance.

[0066] In this embodiment, the direction of the connecting unit 512 can be changed through the first sliding unit 5111 and the second sliding unit 5112, thereby improving the sensitivity of the connection between the door body 3 and the elastic device 52. The fixation of the elastic device 52 is realized through the elastic device connecting piece 521, so that the change amount of the elastic device 52 and the opening angle of the door body 3 have a corresponding relationship, thereby improving the accuracy of detection.

[0067] As an optional embodiment, the door lock state detection device 4 is an optoelectronic device, the detection signal transmitting unit 41 is a light emitting end, and the detection signal receiving unit 42 is a light receiving end.

[0068] Exemplarily, the door lock device detection device is a photoelectric device, and in the utility model, the photoelectric device is a kind of device that can convert optical signal into electrical signal, so the detection signal emitting unit 41 is light emitting end, and the detection signal receiving unit 42 is light receiving end.

[0069] As an alternative embodiment, the elastic device 52 is spring steel.

[0070] Exemplarily, spring steel refers to steel material with high elastic limit and fatigue strength, with the advantages of high strength, high elastic limit, good fatigue strength and the like.

[0071] Optionally, spring steel can include but is not limited to carbon spring steel, alloy spring steel, stainless spring steel and the like.

[0072] Optionally, in the process of opening the door body 3, the pull rope moves towards the door body 3, since the length of the pull rope does not change, the movement of the pull rope drives the spring steel to stretch, generating a rebound force; in the process of closing the door body 3, the pull rope moves towards the spring steel, and the spring steel contracts until the door body 3 is completely closed, and the spring steel contracts to the natural state, and the photoelectric device is located close to the spring steel, the position between the photoelectric device and the spring steel is controlled, to ensure that the photoelectric device detects the connection unit 512 in the closed state of the door body 3, and the photoelectric device detects the spring steel in the open state of the door lock (i.e. in the open state of the door body 3), so as to determine the door lock state according to the opening and closing of the door body 3.

[0073] In this embodiment, based on the setting of spring steel and photoelectric device, the detection accuracy of the opening and closing state of the door body 3 is improved, and the door lock state of the electric appliance is determined.

[0074] As an alternative embodiment, as shown in Figure 3 The door lock detection device further includes a control unit 6, and the control unit 6 is electrically connected with the door lock state detection device 4.

[0075] Exemplarily, the door lock detection device further includes a control unit 6, and the door lock state detection device 4 transmits the detected electrical signal to the control unit 6 by being electrically connected with the control unit 6, and the control unit 6 analyzes the received electrical signal to obtain the detection result of the door lock state. The position of the control unit 6 is set outside the cavity 2 of the electric appliance, and is located inside the shell or on the shell. Generally, the control unit 6 is integrally arranged on the power panel of the electric appliance.

[0076] It should be noted that in the utility model, the opening of the door body 3, the opening of the door and the like represent the open state of the door lock, and the closing of the door body 3, the closing of the door body 3 and the like represent the closed state of the door lock.

[0077] In the embodiment, the electrical signal conversion of the photoelectric device is recognized by the control unit 6 to convert into the door lock state, and the accuracy of the detection result is improved.

[0078] On the other hand, the embodiment of the application provides a dishwasher comprising the door lock detection device of the electrical appliance.

[0079] The technical scheme of the utility model has the advantages of:

[0080] The utility model discloses a brand -new door lock state detection device and mode. The device detects the opening and closing state of the appliance door body through the door body component and the door lock state detection device, specifically, the door lock state detection device emits and receives detection signals through the oppositely arranged detection signal emitting unit and detection signal receiving unit, when the door lock state detection device detects the elastic device, judges the door body to be the open door state, when the door lock state detection device detects the connecting device, judges the door body to be the closed door state, i. e. the door body locking state. The door lock state detection device detects the door lock state, has the advantages of high sensitivity, long service life and mechanical durability.

[0081] The above-mentioned is only optional embodiment of the application, and does not limit the application, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A door lock detection device of an electric appliance, characterized by comprising: The door lock detection device is located outside the cavity (2) of the electric appliance and is arranged in the shell (1) of the electric appliance; the door lock detection device comprises a door lock state detection device (4) and a door body assembly (5); The door body assembly (5) comprises a connecting device (51) and an elastic device (52); one end of the connecting device (51) is fixedly connected with the elastic device (52), and the other end is fixedly connected with the door body assembly (5) of the electric appliance; The door lock state detection device (4) is located between the elastic device (52) and the connecting device (51) and is arranged close to the elastic device (52); the door lock state detection device (4) comprises a detection signal emitting unit (41) and a detection signal receiving unit (42), the detection signal emitting unit (41) is arranged on one side of the connecting device (51), the detection signal receiving unit (42) is arranged on the other side of the connecting device (51), and the detection signal emitting unit (41) and the detection signal receiving unit (42) are oppositely arranged.

2. The door lock detection apparatus of the electric appliance according to claim 1, characterized by The connecting device (51) comprises a sliding unit (511) and a connecting unit (512); the sliding unit (511) is in sliding connection with the connecting unit (512); One end of the connecting unit (512) is fixedly connected with the elastic device (52), and the other end is fixedly connected with the door body assembly (5) of the electric appliance.

3. The door lock detection apparatus of the electric appliance according to claim 2, characterized by The sliding unit (511) comprises a first sliding unit (5111) and a second sliding unit (5112); The first sliding unit (5111) is fixedly arranged on the cavity (2) of the electric appliance and is connected through the connecting unit (512) and the second sliding unit (5112); The second sliding unit (5112) is fixedly arranged between the first sliding unit (5111) and the elastic device (52).

4. The door lock detection apparatus of the electric appliance according to claim 3, characterized by The door lock state detection device (4) is arranged between the second sliding unit (5112) and the elastic device (52) and close to the elastic device (52); The detection signal emitting unit (41) is arranged on one side of the connecting unit (512), and the detection signal receiving unit (42) is arranged on the other side of the connecting unit (512).

5. The door lock detection apparatus of the electric appliance according to claim 1, characterized by When the opening and closing angle of the door body assembly (5) of the electric appliance is a preset angle, the length variation of the elastic device (52) is a first length; The distance between the door lock state detection device (4) and the elastic device (52) is the first length.

6. The door lock detection apparatus of the electric appliance according to claim 1, characterized by The elastic device (52) further comprises an elastic device connecting piece (521); The elastic device (52) is fixedly connected with the cavity (2) of the electric appliance through the elastic device connecting piece (521).

7. The door lock detection apparatus of the electric appliance according to claim 1, characterized by The door lock state detection device (4) is an optoelectronic device, the detection signal emitting unit (41) is a light emitting end, and the detection signal receiving unit (42) is a light receiving end.

8. The door lock detection apparatus of the electric appliance according to claim 1, characterized by The elastic device (52) is spring steel.

9. The door lock detection apparatus of the electric appliance according to claim 1, characterized by The door lock detection device further comprises a control unit (6) which is electrically connected with the door lock state detection device (4).

10. A dishwasher, characterized in that The dishwasher comprises a door lock detection device of an electric appliance according to any one of claims 1 to 9.

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