Door assembly and storage cabinet

Abstract

The door assembly comprises a door body and a human sensing device, the door body comprises a door plate and an end cover connected with the door plate, and at least part of the end cover protrudes out of the door plate in the height direction of the door body; the human sensing device is installed on the end cover, and at least part of the human sensing device is located on the end cover protruding out of the door plate. At least part of the human sensing device is arranged on the part, protruding out of the door plate, of the end cover, and at least part of the human sensing device is not blocked by the door plate in the thickness direction of the door body, so that at least part of sensing signals emitted by the human sensing device can enter external air without penetrating through the door plate, holes do not need to be formed in the door plate, and the cost is reduced. The main appearance effect of the door body cannot be damaged, and the attractiveness of the door body can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a storage technology field, especially a door assembly and a storage cabinet. BACKGROUND

[0002] In order to meet the functional requirements of users on furniture / electrical products, most of the current storage cabinets are configured with human sensing modules to detect human activities, and the storage cabinet actively performs some functional operations when the human sensing module detects that the human body approaches the storage cabinet. In the related art, the human sensing device of the traditional storage cabinet mainly uses infrared sensors, laser sensors and the like to detect the human body, and such sensors have high requirements on the detection environment, and usually need to be perforated on the front surface of the door body, which affects the appearance of the door body. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the prior art. To this end, the utility model provides a door assembly, which sets the human sensing device on the part of the end cover protruding from the door plate, realizes human body detection without perforating the door plate, and improves the appearance of the door body.

[0004] The utility model further provides a storage cabinet with the above door assembly.

[0005] According to the door assembly of the first aspect of the utility model, the door assembly comprises:

[0006] The door body comprises a door plate and an end cover connected with the door plate, and at least part of the end cover protrudes from the door plate along the height direction of the door body.

[0007] The human sensing device is installed on the end cover, and at least part of the human sensing device is located on the part of the end cover protruding from the door plate.

[0008] According to the door assembly of the first aspect of the utility model, the door assembly has at least the following beneficial effects:

[0009] In the utility model, the door assembly comprises a door body and a human sensing device, the door body comprises a door plate and an end cover, at least part of the end cover protrudes from the door plate along the height direction of the door body, the human sensing device is installed on the end cover, at least part of the human sensing device is set on the part of the end cover protruding from the door plate along the thickness direction of the door body, at least part of the human sensing device is not blocked by the door plate, at least part of the sensing signals emitted by the human sensing device can enter the external air without passing through the door plate, so that the door plate does not need to be perforated, the main appearance surface effect of the door body is not damaged, and the appearance of the door body can be improved.

[0010] According to some embodiments of the present invention, the end cap includes a protrusion that protrudes from the door panel along the height direction of the door body. The protrusion is provided with a first receiving groove, the opening of which is parallel to the height direction of the door body, and the human sensing device is installed in the first receiving groove.

[0011] According to some embodiments of the present invention, the end cap includes a main body and a protruding part protruding from the main body. The main body is connected to the door panel, and the main body protrudes from the door panel along the height direction of the door body. The protruding part is provided with a first receiving groove, the opening of the first receiving groove is parallel to the height direction of the door body, and the human sensing device is installed in the first receiving groove.

[0012] According to some embodiments of the present invention, the human sensing device includes:

[0013] The mounting box includes a box body and a cover connected to the box body, the box body having an opening, and the cover sealing at least part of the opening;

[0014] A sensor assembly is disposed within the housing, the sensor assembly including a circuit board and a sensing element electrically connected to the circuit board.

[0015] According to some embodiments of the present invention, the box body includes a bottom plate and a first wall plate. The bottom plate is disposed opposite to the cover body. The first wall plate is connected to the bottom plate and disposed opposite to the circuit board. The distance between the bottom plate and the cover body is L1, and the distance between the first wall plate and the circuit board is L2, satisfying: L1+L2≥27mm.

[0016] According to some embodiments of the present invention, the end cap is provided with a first receiving groove, the outer surface of the mounting box is provided with a first snap-fit ​​portion, the groove wall of the first receiving groove is provided with a second snap-fit ​​portion, and the mounting box is snapped into the first receiving groove through the first snap-fit ​​portion and the second snap-fit ​​portion. The first snap-fit ​​portion includes one of a first buckle and a first slot, and the second snap-fit ​​portion includes the other of the first buckle and the first slot.

[0017] According to some embodiments of the present invention, the box body includes a first wall panel and a second wall panel opposite to each other. The first wall panel is provided with a third snap-fit ​​portion. The cover body is hinged to the second wall panel. The cover body is provided with a fourth snap-fit ​​portion. The cover body is snapped to the second wall panel through the third snap-fit ​​portion and the fourth snap-fit ​​portion. The third snap-fit ​​portion includes one of a second buckle and a second slot. The fourth snap-fit ​​portion includes the other of the second buckle and the second slot.

[0018] According to some embodiments of the present invention, the door assembly further includes a light-emitting device, which is mounted on the door panel and / or the end cap, and is configured to emit light when the human sensor detects the approach of a human body.

[0019] According to some embodiments of the present invention, the human sensing device is configured to emit millimeter waves for human body detection; and / or, the human sensing device includes a circuit board, and the human sensing device further includes a wireless communication module integrated on the circuit board.

[0020] The locker according to a second aspect of the present invention includes the door assembly described in any of the above embodiments.

[0021] The locker according to the second aspect embodiment of the present invention has at least the following beneficial effects:

[0022] By employing the door assembly of the first aspect embodiment, the door assembly includes a door body and a human sensing device. The door body includes a door panel and an end cap. At least a portion of the end cap protrudes from the door panel along the height direction of the door body. The human sensing device is mounted on the end cap. By placing at least a portion of the human sensing device in the portion of the end cap protruding from the door panel, at least a portion of the human sensing device is not blocked by the door panel along the thickness direction of the door body. Therefore, at least a portion of the sensing signal emitted by the human sensing device does not need to pass through the door panel to enter the outside air, thereby eliminating the need to make holes in the door panel, not damaging the main appearance of the door body, improving the aesthetics of the door body, and enhancing the appearance of the storage cabinet.

[0023] Additional aspects and advantages of this invention 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 invention. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is a schematic diagram of the structure of the door assembly according to an embodiment of the present utility model;

[0026] Figure 2 This is an exploded view of the door body according to an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the end cap structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the assembly of the human sensor and the end cap according to an embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the human sensing device according to an embodiment of the present utility model;

[0030] Figure 6 This is a schematic diagram of the mounting box of the human sensor device according to an embodiment of the present utility model;

[0031] Figure 7 This is a cross-sectional view of the human sensing device according to an embodiment of the present utility model;

[0032] Figure 8 for Figure 3 A magnified view of a section at point A in the middle;

[0033] Figure 9 This is a cross-sectional view of the mounting box and end cap snapping together according to an embodiment of the present utility model;

[0034] Figure 10 This is an exploded view of the light-emitting device according to an embodiment of the present invention.

[0035] Icon labels:

[0036] Door assembly 10;

[0037] Door body 100; Door panel 110;

[0038] End cap 120; first receiving groove 120a; second receiving groove 120b; main body 121; protrusion 122; second locking part 123; sixth locking part 124; door liner 130;

[0039] Human sensing device 200; box body 210; opening 210a; first wall panel 211; third snap-fit ​​part 2111; second wall panel 212; bottom plate 213; first protruding rib 214; second protruding rib 215; first snap-fit ​​part 216;

[0040] Cover 220; Fourth latching part 221; Latch 2211; Second latching slot 2212;

[0041] Sensor assembly 230; circuit board 231; sensing element 232;

[0042] Light-emitting device 300; lampshade 310; fifth snap-fit ​​part 311; light strip 320. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0046] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0047] This utility model provides a door assembly. The door assembly provided by this utility model is applied to storage cabinets, which can be wardrobes, bookcases, or other storage cabinets, or storage cabinets with refrigeration functions, such as refrigerators, freezers, wine cabinets, etc. The following will describe the door assembly in detail using the application of the door assembly to a refrigerator / freezer as an example.

[0048] Please refer to Figure 1 The door assembly 10 includes a door body 100 and a human sensing device 200 disposed on the door body 100. The human sensing device 200 is used to detect whether there is a person in front of the door body 100.

[0049] Please refer to Figure 2 When the door assembly 10 is applied to a refrigerator / freezer, the door body 100 includes a door panel 110, a door insert 130, and an end cap 120. The door panel 110 and the door insert 130 are arranged opposite each other along the thickness direction of the door body 100. The door panel 110 is the part of the door body 100 facing the outside of the refrigerator, and the door insert 130 is the part of the door body 100 facing the inside of the refrigerator. The end cap 120 is connected to the door panel 110 and the door insert 130. In one embodiment, two end caps 120 are provided, which can be an upper end cap and a lower end cap, respectively connected to opposite ends of the door panel 110 along its height direction. To ensure the aesthetics of the door body 100, the door panel 110 can be made of materials such as metal, ceramic, or glass; the end cap 120 is generally provided with a connecting structure for connecting the door panel 110 and the door insert 130, and for ease of manufacturing, the end cap 120 can be made of plastic.

[0050] In related technologies, current refrigerators mainly use infrared sensors, laser sensors, etc. for human body detection. This requires opening holes in the front panel of the refrigerator door to expose these sensing devices to emit signals. However, opening holes damages the main appearance of the door and affects its appearance.

[0051] To solve the above problems, in this embodiment of the application, at least a portion of the end cover 120 protrudes from the door panel 110 along the height direction of the door body 100, and the human sensing device 200 is installed on the end cover 120, with at least a portion of the human sensing device 200 located on the portion of the end cover 120 that protrudes from the door panel 110.

[0052] The human sensor 200 can be installed on either the upper or lower end cover. Taking the human sensor 200 installed on the lower end cover as an example, at least a portion of the end cover 120 protrudes from the door panel 110 along the height direction of the door body 100. That is, at least a portion of the structure of the end cover 120 is lower than the bottom of the door panel 110. By placing at least a portion of the human sensor 200 on the portion of the end cover 120 that protrudes from the door panel 110, when viewed along the thickness direction of the door body 100, there is no structure of the door panel 110 on the front side of at least a portion of the human sensor 200. That is, at least a portion of the human sensor 200 is not blocked by the door panel 110. Therefore, at least a portion of the sensing signal emitted by the human sensor 200 can be emitted into the outside air without passing through the door panel 110. Thus, there is no need to make holes in the door panel 110, which does not damage the main appearance of the door body 100 and can improve the aesthetics of the door body 100.

[0053] It should be noted that the human sensor 200 is mounted on the end cover 120. In order to ensure that the sensing signal emitted by the human sensor 200 is not blocked by the end cover 120, at least part of the end cover 120 is made of light-transmitting plastic. For the human sensor 200 that uses infrared or laser sensing, the sensing signal can pass through the light-transmitting plastic. Alternatively, the end cover 120 can also be made of opaque plastic. The human sensor 200 can use some sensing devices that can penetrate opaque plastic, such as millimeter-wave radar.

[0054] In this invention, the door assembly 10 includes a door body 100 and a human sensor 200. The door body 100 includes a door panel 110 and an end cap 120. At least a portion of the end cap 120 protrudes from the door panel 110 along the height direction of the door body 100. The human sensor 200 is installed on the end cap 120. By placing at least a portion of the human sensor 200 on the portion of the end cap 120 that protrudes from the door panel 110, at least a portion of the human sensor 200 is not blocked by the door panel 110 along the thickness direction of the door body 100. Therefore, at least a portion of the sensing signal emitted by the human sensor 200 does not need to pass through the door panel 110 to enter the outside air. This eliminates the need to make holes in the door panel 110, does not damage the main appearance of the door body 100, and improves the aesthetics of the door body 100.

[0055] In some embodiments, the human detection device 200 is configured to emit millimeter waves for human detection. Compared to traditional human detection devices that use infrared or laser detection, millimeter wave signals have better penetration through plastics and do not require the plastic to be translucent. In this embodiment, by configuring the human detection device 200 to emit millimeter wave signals for human detection, the end cover 120 does not need to be made of translucent plastic. The end cover 120 can be configured to be made of plastic of the same or similar color to the door panel 110, and there is no need to make holes in the end cover 120, further improving the aesthetics of the door 100. In one embodiment, the human detection device 200 uses millimeter wave radar for human detection.

[0056] In some embodiments, the end cap 120 is provided with a first receiving groove 120a, and the human sensor 200 is installed in the first receiving groove 120a. The opening of the first receiving groove 120a is parallel to the height direction of the door panel 110, that is, the opening of the first receiving groove 120a faces upward or downward, so that the human sensor 200 is hidden inside the end cap 120, and the user is not easily able to see the human sensor 200 directly from the front of the door 100, further improving the aesthetics of the door 100. Note that the accompanying drawings of this application embodiment are only illustrative examples of the human sensor 200 being installed in the first receiving groove 120a of the lower end cap, and should not be considered as limitations on this application.

[0057] In some embodiments, please refer to Figure 4 The end cap 120 includes a protrusion 122 that protrudes from the door panel 110 along the height direction of the door body 100. The protrusion 122 is provided with the aforementioned first receiving groove 120a. At least a portion of the structure of the human sensor 200 can be disposed in the protrusion 122, allowing some millimeter-wave signals emitted by the human sensor 200 to penetrate the protrusion 122 and enter the air without being blocked by the door panel 110.

[0058] In some embodiments, the end cap 120 further includes a main body 121, which is connected to the door panel 110, and a protrusion 122 protrudes from the main body 121. The main body 121 may also protrude from the door panel 110 along the height direction of the door body 100, or the main body 121 may not protrude from the door panel 110.

[0059] In one embodiment, reference Figure 4As shown, the main body 121 protrudes from the door panel 110 along the height direction of the door body 100. That is, both the main body 121 and the protrusion 122 of the end cover 120 protrude from the door panel 110, so that a large portion of the end cover 120 protrudes from the door panel 110. This allows most of the structure of the human sensor 200, or even the entire human sensor 200, to protrude from the door panel 110. As a result, the human sensor 200 can emit more millimeter-wave signals that penetrate the end cover 120 and directly enter the outside air, so that more millimeter-wave signals are not blocked by the door panel 110, which can improve the accuracy and reliability of the detection results of the human sensor 200.

[0060] Please refer to Figures 5 to 7 The human sensing device 200 includes a mounting box and a sensor assembly 230. The sensor assembly 230 is disposed within the mounting box and includes a circuit board 231 and a sensing element 232 electrically connected to the circuit board 231. The sensing element 232 may be a millimeter-wave radar.

[0061] In one embodiment, the mounting box may include a box body 210 and a cover 220 connected to the box body 210. The box body 210 has an opening 210a through which the sensor assembly 230 is installed. The cover 220 covers at least part of the opening 210a. By isolating the sensor assembly 230 from the external structure through the mounting box, the creepage distance between the external structure and the sensor assembly 230 is increased, effectively preventing the influence of static electricity on the sensing element 232. Since both the box body 210 and the cover 220 are made of plastic, the entire mounting box is made of plastic, allowing the detection signal emitted by the sensing element 232 to penetrate the mounting box, while also providing good anti-static properties.

[0062] refer to Figure 7 As shown, the housing 210 is provided with a first rib 214 and a second rib 215. The first rib 214 and the second rib 215 are arranged at intervals relative to each other. The circuit board 231 is clamped between the first rib 214 and the second rib 215 so that the sensor assembly 230 is stably installed in the housing 210, preventing the sensor assembly 230 from shifting / colliding due to the frequent opening and closing of the door 100, which would affect the reliability of human body detection.

[0063] In one embodiment, please refer to Figure 6 and Figure 7 The box body 210 includes a base plate 213 and a first wall plate 211. The base plate 213 is disposed opposite to the cover 220. The first wall plate 211 is connected to the base plate 213 and disposed opposite to the circuit board 231. The distance between the base plate 213 and the cover 220 is L1, and the distance between the first wall plate 211 and the circuit board 231 is L2, satisfying: L1+L2≥27mm.

[0064] L1+L2: This is the sum of the distance between the base plate 213 and the cover 220 and the distance between the first wall plate 211 and the circuit board 231, representing the shortest distance from the outside of the door 100 to the circuit board 231. According to tests conducted by the applicant of this utility model, when the creepage distance from the outside of the door 100 to the circuit board 231 is greater than 20mm, the impact of static electricity can be significantly reduced. In this embodiment, by ensuring that L1+L2≥27mm, i.e., the shortest creepage distance from the outside of the door 100 to the circuit board 231 is greater than 27mm, the impact of static electricity is effectively avoided, preventing static electricity from damaging the sensing element 232 on the circuit board 231 and affecting human body detection.

[0065] In one embodiment, please refer to the reference Figure 5 , Figure 8 and Figure 9 The outer surface of the box body 210 is provided with a first snap-fit ​​part 216, and the groove wall of the first receiving groove 120a is provided with a second snap-fit ​​part 123. The mounting box is snapped into the first receiving groove 120a through the first snap-fit ​​part 216 and the second snap-fit ​​part 123.

[0066] The mounting box and end cap 120 are connected by a snap-fit ​​mechanism. During assembly, the sensor assembly 230 is first installed and secured inside the box 210, and the cover 220 is used to seal the opening of the box 210, forming a complete human sensor 200. Then, the entire human sensor 200 is installed into the first receiving groove 120a. When the first snap-fit ​​part 216 and the second snap-fit ​​part 123 of the mounting box engage, the assembly of the human sensor 200 and end cap 120 is complete. By snapping the human sensor 200 to the end cap 120, no tools or screws are needed for fixing, simplifying installation and improving production efficiency.

[0067] The first latching part 216 can be a first buckle, and the second latching part 123 can be a first slot. Alternatively, the first latching part 216 can be a first slot, and the second latching part 123 can be a first buckle.

[0068] In one embodiment, the cover 220 is hinged to the box body 210, and the cover 220 is rotatable relative to the box body 210. Please refer to... Figure 6 and Figure 7 The box body 210 includes a first wall panel 211 and a second wall panel 212 facing each other. The cover 220 is hinged to the second wall panel 212. The first wall panel 211 is provided with a third locking part 2111, and the cover 220 is provided with a fourth locking part 221. The cover 220 is locked to the second wall panel 212 through the third locking part 2111 and the fourth locking part 221. By providing the locking engagement of the third locking part 2111 and the fourth locking part 221, the two restrict the cover 220 from rotating in a direction away from the box body 210, so as to ensure that the cover 220 is stably closed on the box body 210.

[0069] In one embodiment, please refer to Figure 7 The third snap-fit ​​part 2111 is a second buckle protruding from the inner surface of the first wall panel 211, and the fourth snap-fit ​​part 221 is a snap-fit ​​member 2211 protruding from the inner surface of the cover 220. The snap-fit ​​member 2211 is provided with a second slot 2212, and the second buckle snaps into the second slot 2212.

[0070] Understandably, some functional modules can also be set on the door 100. These functional modules can be configured to trigger corresponding functional operations based on the sensing results of the human sensor 200.

[0071] In some embodiments, please refer again Figure 1 The door assembly 10 also includes a light-emitting device 300, which is mounted on the door panel 110 and / or end cover 120. The light-emitting device 300 is configured to emit light in response to a human body signal detected by the human body sensor 200; that is, the human body sensor 200 is a trigger device for activating the light-emitting device 300. The light-emitting device 300 is triggered to emit light when the human body sensor 200 senses a human body approaching the door 100, thus facilitating user operation. For example, when a user uses the refrigerator in a dark environment, as the user approaches the refrigerator, the human body sensor 200 senses the user's approach to the door 100 and triggers the light-emitting device 300 to emit light, providing illumination for the user to better locate the refrigerator in the dark.

[0072] Please refer to Figure 3 The door body 100 may be provided with a second receiving groove 120b, and the light-emitting device 300 is installed in the second receiving groove 120b, thus concealing the light-emitting device 300 and preventing the user from directly seeing it, thereby improving the appearance. In one embodiment, the end cover 120 is provided with a second receiving groove 120b, the opening of the second receiving groove 120b facing the same direction as the opening of the first receiving groove 120a. The second receiving groove 120b may extend along the width direction of the door body 100, allowing the light-emitting device 300 to be designed as an elongated shape. Please refer to... Figure 8 and Figure 10 The light-emitting device 300 may include a light strip 320 and a lamp cover 310 for fixing the light strip 320. The lamp cover 310 is provided with a fifth snap-fit ​​part 311, and the groove wall of the second receiving groove 120b is provided with a sixth snap-fit ​​part 124. The fifth snap-fit ​​part 311 and the sixth snap-fit ​​part 124 are snap-fitted together to fix the light-emitting device 300 in the second receiving groove 120b.

[0073] The door assembly 10 also includes a wireless communication module, which is integrated onto the circuit board 231. That is, the wireless communication module is integrated into the human sensor 200, improving the integration level of the human sensor 200. Understandably, the wireless communication module can be used to connect the refrigerator to a user's mobile terminal, allowing the user to remotely control some functions of the refrigerator via the mobile terminal, such as adjusting the refrigerator temperature and turning the lights on / off. The wireless communication module may include a WiFi module or a Bluetooth module.

[0074] This utility model also provides a storage cabinet, which includes a door assembly 10 based on any of the above embodiments. The storage cabinet can be a conventional storage cabinet or a storage cabinet with a refrigeration function, such as a refrigerator, freezer, wine cabinet, etc.

[0075] Since the locker adopts all the technical solutions of the door assembly 10 of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0076] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A door assembly characterized by, The door assembly comprises: a door body comprising a door panel and an end cover connected to the door panel, at least part of the end cover protruding from the door panel along a height direction of the door body; and a human sensing device mounted on the end cover, at least part of the human sensing device being located at a portion of the end cover protruding from the door panel. The end cover comprises a protruding portion protruding from the door panel along the height direction of the door body, the protruding portion being provided with a first accommodating groove, an opening of the first accommodating groove being parallel to the height direction of the door body, and the human sensing device being mounted on the first accommodating groove.

2. The door assembly of claim 1, wherein, The end cover comprises a main body portion and a protruding portion protruding from the main body portion, the main body portion being connected to the door panel and protruding from the door panel along the height direction of the door body, and the protruding portion being provided with a first accommodating groove, an opening of the first accommodating groove being parallel to the height direction of the door body, and the human sensing device being mounted on the first accommodating groove.

3. The door assembly of claim 1, wherein, The human sensing device comprises:

4. The door assembly of any one of claims 1 to 3, wherein, a mounting box comprising a box body and a cover body connected to the box body, the box body being provided with an opening, and the cover body covering at least part of the opening; a sensor assembly provided in the box body, the sensor assembly comprising a circuit board and a sensing element electrically connected to the circuit board. The box body comprises a bottom plate and a first wall plate, the bottom plate being provided opposite to the cover body, the first wall plate being connected to the bottom plate and provided opposite to the circuit board, a distance between the bottom plate and the cover body being L1, and a distance between the first wall plate and the circuit board being L2, satisfying: L1+L2≥27mm.

5. The door assembly of claim 4, wherein, The end cover is provided with a first accommodating groove, an outer surface of the mounting box is provided with a first clamping portion, a groove wall of the first accommodating groove is provided with a second clamping portion, and the mounting box is clamped in the first accommodating groove through the first clamping portion and the second clamping portion, the first clamping portion comprising one of a first buckle and a first clamping groove, and the second clamping portion comprising the other of the first buckle and the first clamping groove.

6. The door assembly of claim 4, wherein, The box body comprises opposite first and second wall plates, the first wall plate is provided with a third clamping portion, the cover body is hinged to the second wall plate, the cover body is provided with a fourth clamping portion, and the cover body is clamped to the second wall plate through the third clamping portion and the fourth clamping portion; the third clamping portion comprises one of a second buckle and a second clamping groove, and the fourth clamping portion comprises the other of the second buckle and the second clamping groove.

7. The door assembly of claim 4, wherein, The door assembly further comprises a light emitting device mounted on the door panel and / or the end cover, the light emitting device being configured to emit light in response to a signal detected by the human sensing device.

8. The door assembly of any one of claims 1 to 3, wherein, The human sensing device is configured to emit millimeter waves for human body detection; and / or, the human sensing device comprises a circuit board, and the door assembly further comprises a wireless communication module integrated in the circuit board.

9. The door assembly of any one of claims 1 to 3, wherein, The door assembly comprises any one of claims 1 to 9.

10. A storage cabinet characterized by, ​

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