A wire harness switching device for a refrigerator and a refrigerator

Abstract

The utility model discloses a kind of harness switching device for the connecting place of refrigerator body and door body and refrigerator, the harness switching device includes the detection sensor for detecting the opening and closing state of the door body, further include the first power supply path for connecting the load when the door body is in the state of closing door and power on, the second power supply path for connecting the load when the door body is in the state of opening door and power on, and switching device for switching on first power supply path or second power supply path;The switching device switches on the first power supply path or second power supply path according to the detection signal of the detection sensor.Compared with prior art, the utility model can greatly reduce the number of harness, simplify wiring, reduce harness cost, and is more universal and implementable.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a wiring harness switching device for the connection between the refrigerator body and the door, and a refrigerator. Background Technology

[0002] As living standards improve, people have higher requirements for the functionality and appearance of refrigerators, with a greater pursuit of intelligent features and a cooler look. This has led to the integration of electronic components such as external displays, ambient lighting, LED bottle frames, human detection radar, internal door buttons, and humidification modules into existing refrigerator door designs. Consequently, the number of wiring harnesses from the cabinet side to the door end has increased, and the overall wire diameter is much larger (2-3 times) than in traditional refrigerators with fewer functions. This necessitates larger connecting structures (external hinge cover and sheet metal hinge connectors) and additional molds, affecting the smoothness of door opening and closing and the aesthetic appearance.

[0003] For example, existing refrigerator doors integrate electronic components such as external displays, external ambient lights, LED bottle frames, human detection radar, internal door buttons, and humidification modules. These components sometimes do not require power supply in different usage scenarios.

[0004] For example, external ambient lighting (12V), external display screen (5V), human detection radar (5V), and humidification module (12V) are loads that only require power when the door is closed;

[0005] For example, loads such as bottle frame LEDs (5V) and door internal buttons (5V) only require power when the door is open.

[0006] Special requirements: The external display screen and human detection radar need to have continuous signal lines (long-term connection, not changing with the door status).

[0007] Existing technological shortcomings:

[0008] Harness redundancy: 6 loads require 6 power supply lines + 2 signal lines = 8 harnesses;

[0009] Voltage conflict: Load voltage difference (5V / 12V) requires an additional voltage converter, increasing wiring complexity;

[0010] Bulk connectors: The large number of wire harnesses leads to an increase in connector width, affecting the smoothness of door opening and closing;

[0011] Energy waste: When the door is closed, the load (such as the LED in the bottle frame) continues to be powered, increasing standby power consumption.

[0012] Existing solutions (such as simple group power supply one-to-one connection) require a large size for the door box connection (upper hinge wiring hole), and necessitate new structural designs and mold development, resulting in cost waste.

[0013] Therefore, how to design a wiring harness switching device and refrigerator for the connection between the refrigerator body and the door, which can significantly reduce the number of wiring harnesses, simplify wiring, and reduce wiring harness costs, is a technical problem that the industry urgently needs to solve. Utility Model Content

[0014] In view of the problems of wire harness redundancy and energy waste in the existing wire harness wiring scheme, this utility model proposes a wire harness switching device and a refrigerator for the connection between the refrigerator body and the door.

[0015] The technical solution of this utility model is to propose a wiring harness switching device for the connection between the refrigerator body and the door, including a detection sensor for detecting the opening and closing state of the door, a first power supply path for connecting to a load powered on when the door is closed, a second power supply path for connecting to a load powered on when the door is open, and a switching device for switching between the first power supply path and the second power supply path.

[0016] The switching device switches between the first power supply path and the second power supply path based on the detection signal from the detection sensor.

[0017] Furthermore, it also includes a signal transmission path for transmitting signals to a load when the door is in both the closed and open states, the signal transmission path being conductive when the door is in both the open and closed states.

[0018] Furthermore, it also includes a cabinet power supply for providing electrical power output, and a voltage regulation module connected to the cabinet power supply;

[0019] The voltage regulation module switches the voltage output of the enclosure power supply to at least two power supply outputs with different voltages. The first power supply path and the second power supply path each have at least one sub-power supply path connected to the power supply output, and each sub-power supply path is simultaneously connected to all loads with matching voltage.

[0020] Furthermore, the detection sensor includes a Hall magnetic sensor installed on the refrigerator body and a magnet installed on the refrigerator door;

[0021] When the door is in the closed state, the Hall magnetic sensor emits a first detection signal to conduct the first power supply path;

[0022] When the door is in the open state, the Hall magnetic sensor sends a second detection signal to activate the second power supply path.

[0023] Furthermore, the switching device uses a relay, and the normally open contact of the relay is connected to the first power supply path, and the normally closed contact of the relay is connected to the second power supply path.

[0024] When the Hall magnetic sensor sends a first detection signal, the common terminal of the relay is connected to the normally open contact;

[0025] When the Hall magnetic sensor sends a second detection signal, the common terminal of the relay is connected to the normally closed contact.

[0026] Furthermore, the voltage regulation module employs a DC-DC converter, which switches the voltage output of the enclosure power supply to a first power supply output for providing 5V voltage and a second power supply output for providing 12V voltage.

[0027] The first power supply path has a first sub-power supply path connected to the first power supply output and a second sub-power supply path connected to the second power supply output;

[0028] The second power supply path has a third sub-power supply path connected to the first power supply output.

[0029] Furthermore, the loads connected to the first sub-power supply path include an external display screen and a human detection radar; the loads connected to the second sub-power supply path include an external ambient light and a humidification module; and the loads connected to the third sub-power supply path include a bottle frame LED and door interior buttons.

[0030] Furthermore, the signal transmission path is provided with two paths, and the two signal transmission paths are respectively connected to an external display screen and a human-sensing radar.

[0031] Furthermore, the wiring harness switching device is integrated into the connection structure between the refrigerator body and the door.

[0032] This utility model also proposes a refrigerator, which has the above-mentioned wiring harness switching device at the connection between the refrigerator body and the door.

[0033] Compared with the prior art, the present invention has at least the following beneficial effects:

[0034] 1. This utility model divides the wiring harness into a first power supply path that is conductive in the closed state and a second power supply path that is conductive in the open state. The first power supply path is connected to all loads that are powered in the closed state, and the second power supply path is connected to all loads that are powered in the open state. Then, by switching the first power supply path and the second power supply path through a switching device, it can be ensured that only loads that are powered in the closed state are powered when the door is closed, and only loads that are powered in the open state are powered when the door is open, thus avoiding the problems of voltage conflict and energy waste.

[0035] 2. In this utility model, different voltages are provided by a voltage regulation module, and all sub-power supply paths are connected to the power supply output of the voltage regulation module. The voltage regulation module only needs to be connected to one 12V wire harness, so that the power supply wire harness in this utility model only needs one 12V power supply wire harness, thus solving the problem of redundant wire harnesses. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the connections between various wire harnesses in the existing technology;

[0038] Figure 2 This is a schematic diagram of the assembly of this utility model on a refrigerator;

[0039] Figure 3 This is a schematic diagram showing the connection of each wire harness in this utility model;

[0040] Figure 4 This is a schematic diagram of the relay connection in the open state of this utility model;

[0041] Figure 5 This is a schematic diagram of the relay connection in the closed state of this utility model;

[0042] Figure 6 This is a flowchart illustrating the process of this utility model. Detailed Implementation

[0043] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0044] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0045] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0046] The refrigerator door integrates electronic components such as an external display screen, external ambient lighting, LED bottle frame, human sensor, internal door buttons, and a humidification module. Please refer to [link / reference needed]. Figure 1 In the existing technology, the wiring harness is connected by leading out 8 wiring harnesses from the main board of the refrigerator, which are used for the power supply of the above 6 loads, as well as the signal transmission wiring harnesses of the human sensor radar and the external display screen.

[0047] This connection method suffers from problems such as redundant wiring harnesses, voltage conflicts, bulky connectors, and wasted energy.

[0048] To solve the above problems, the design concept of this utility model is as follows: set up a power supply harness, and then convert it into multiple power supply outputs through a DC-DC converter. Divide the load according to the power supply state when the door is open, the power supply state when the door is closed, and the working voltage. Then connect to the power supply output through different power supply paths, thereby solving the problems existing in the prior art.

[0049] Based on this design concept, this utility model proposes a wiring harness switching device for the connection between the refrigerator body and the door, including a detection sensor for detecting the opening and closing state of the door, a first power supply path for connecting to a load powered on when the door is closed, a second power supply path for connecting to a load powered on when the door is open, and a switching device for switching between the first power supply path and the second power supply path.

[0050] The switching device switches between the first power supply path and the second power supply path based on the detection signal from the detection sensor.

[0051] Under this design scheme, the present invention divides all loads into two categories based on whether they are powered on when the door is closed or open. Among them, the external ambient light, external display screen, human sensor radar, and humidification module are loads powered on when the door is closed, and they are all connected to the first power supply path. The bottle frame LED and the door internal button are loads powered on when the door is open, and they are all connected to the second power supply path.

[0052] Under this implementation scheme, only two power supply paths are needed to connect to all loads, meaning only two wiring harnesses are required, significantly reducing wiring harness usage. Furthermore, by switching between the first and second power supply paths via a switching device, continuous power supply to the bottle frame LEDs and internal door buttons can be avoided when the door is closed, and continuous power supply to the external ambient lights, external display screen, human sensor, and humidification module can be avoided when the door is open. Compared to the attached... Figure 1 The connection method reduces standby power consumption.

[0053] As mentioned above, among the electronic components installed in the refrigerator, the external display screen and the human sensor radar need to continuously transmit signals. The on / off state of this path does not change with the opening or closing state of the door. Therefore, this utility model also includes a signal transmission path for connecting to a load that transmits signals when the door is in both the closed and open states. This signal transmission path is conductive when the door is in both the open and closed states.

[0054] By setting this signal transmission path, continuous signal transmission can be guaranteed, serving as the signal line for the external display screen and the human detection radar, thereby satisfying the real-time display of the refrigerator's status and the real-time monitoring of whether anyone is approaching.

[0055] To further reduce the use of wiring harnesses, this utility model also includes a voltage regulation module connected to the power supply of the enclosure;

[0056] The voltage regulation module switches the voltage output of the enclosure power supply to at least two power supply outputs with different voltages. The first power supply path and the second power supply path each have at least one sub-power supply path connected to the power supply output, and each sub-power supply path is simultaneously connected to all loads with matching voltage.

[0057] As mentioned above, different loads not only have differences in power-on status when the door is open or closed, but also differences in operating voltage. For example, among loads that are powered on when the door is closed, the operating voltage of the external ambient light and humidification module is 12V, while the operating voltage of the external display screen and human sensor radar is 5V. Among loads that are powered on when the door is open, the operating voltage of the bottle frame LED and the door internal button is 5V.

[0058] To avoid voltage conflicts, this invention includes a voltage regulation module that can output at least two power supply outputs with different voltages. Since this invention only has loads with 5V and 12V operating voltages, it only has two power supply outputs, providing 5V and 12V voltages respectively. At the same time, the first power supply path and the second power supply path are further divided according to the different operating voltages of the loads to be connected.

[0059] In other embodiments of this utility model, when there are multiple loads with different operating voltages, the power supply output of the voltage regulation module can be set to more values ​​to match the loads with different operating voltages.

[0060] In this configuration, the present invention divides the above-mentioned loads into loads that are powered on in the closed state and have an operating voltage of 5V: external display screen and human detection radar;

[0061] Loads powered on with the door open and operating at 12V: external ambient light and humidification module;

[0062] Loads powered on with a working voltage of 5V while the door is closed: bottle frame LEDs and buttons inside the door;

[0063] To accommodate the connection of the aforementioned loads, the voltage regulation module in this invention employs a DC-DC converter, which can convert a 12V power supply into a first power supply output of 5V and a second power supply output of 12V.

[0064] The first power supply path has a first sub-power supply path connected to the first power supply output. Here, the first sub-power supply path is part of the first power supply path, that is, it is turned on when the door is closed. Since it is connected to the first power supply output, it outputs a 5V voltage. Therefore, the first sub-power supply path can be connected to an external display screen and a human detection radar.

[0065] The first power supply path also has a second sub-power supply path connected to the second power supply output. Here, the second sub-power supply path is also part of the first power supply path, that is, it is turned on when the door is closed. Since it is connected to the second power supply output, it outputs 12V voltage. Therefore, the second sub-power supply path can be connected to the external ambient light and humidification module.

[0066] The second power supply path also has a third sub-power supply path connected to the first power supply output. Here, the third sub-power supply path is part of the second power supply path, that is, it is turned on when the door is open. Since it is connected to the first power supply output, it outputs 5V voltage. Therefore, the third sub-power supply path can be connected to the bottle frame LED and the door internal button.

[0067] By connecting these three loads to the power output of the voltage regulation module through different sub-power supply paths, loads with the same operating voltage and the same power-on time can be connected to the same power supply path, while loads with different operating voltages or different power-on times can be connected to different power supply paths, thus avoiding voltage conflicts between different loads.

[0068] Furthermore, all the aforementioned sub-power supply paths are actually connected to the power output of the voltage regulation module, while the voltage regulation module only needs one input path, which in this invention is a 12V power supply harness. Therefore, under this design, this invention only needs one 12V power supply harness to connect all loads, further saving the use of harnesses.

[0069] Please see Figure 3 This is the connection method of the wire harness in this utility model. The wiring structure is the structure for routing wires between the refrigerator body and the door. Based on the above settings, this utility model only needs to use four wire harnesses, namely, the relay signal line (the switching device in this utility model uses a relay) set in the wiring structure, the power supply line that provides 12V power, the signal line for connecting to the human sensor radar, and the signal line for connecting to the external display screen.

[0070] Compared to the attached Figure 1 Compared with existing connection methods, this utility model saves half of the wiring harness, as detailed below:

[0071] Load type Existing technology This plan Reduction rate Power supply cable (5V / 12V) 6 1 item 83% signal line 2 3 -50% total 8 4 50%

[0072] In other words, based on the above solution, this utility model can save at least 50% of the wiring harness. In practical applications, the use of wiring harnesses can be further reduced depending on the number of loads or the sharing of signal lines.

[0073] Appendix Figure 3 Medium loads are divided into 5V closed-door groups, which are loads that are powered on in the closed state and have an operating voltage of 5V.

[0074] 5V door opening group, that is, a load that is powered on when the door is open and has an operating voltage of 5V;

[0075] A 12V door closing group is a load that is powered on while the door is closed and operates at 12V.

[0076] In this utility model, the 12V power supply line is divided into 5V power supply and 12V power supply output after passing through the voltage regulation module. Then, through relay switching and sub-power supply path setting, they are respectively connected to the above-mentioned load group.

[0077] Therefore, this utility model is equivalent to distinguishing loads with different working voltages and power-on times, thus avoiding the problem of voltage conflict.

[0078] In a preferred embodiment of this utility model, the detection sensor includes a Hall magnetic sensor installed on the refrigerator body and a magnet installed on the refrigerator door.

[0079] When the door is in the closed state, the Hall magnetic sensor sends a first detection signal to turn on the first power supply path;

[0080] When the door is in the open position, the Hall magnetic sensor sends a second detection signal to activate the second power supply path.

[0081] Specifically, when the door is closed, the magnet approaches the Hall effect sensor and outputs a high level (3.3V) to the main board.

[0082] When the door is in the open position, the Hall effect magnetic sensor based on the magnetic principle outputs a low level (0V) to the main board;

[0083] By receiving high and low voltage levels, the motherboard can accurately identify the status of the gate and then further control the power supply path of the switching device, thereby controlling the power supply of the corresponding load.

[0084] Please see Figure 2 The refrigerator has a cabinet and a door. The wiring structure is set on the cabinet for wiring (the four wire bundles mentioned above). The Hall magnetic sensor is set on the cabinet, and the magnet is set at the corresponding position on the door. When the door is closed, the magnet can just fit against the Hall magnetic sensor to make it sense and thus output the corresponding level signal.

[0085] Based on this design, this utility model can accurately identify the state of the gate and then further control the switching device to conduct the corresponding power supply path, thereby realizing the control of powering on the corresponding load.

[0086] It should be noted that the main function of the above-mentioned detection sensor is to determine the state of the door. The setting of the Hall magnetic sensor is only a preferred embodiment of this utility model. In other embodiments of this utility model, the state of the door can also be determined by means of detecting the size of the door gap by a camera, detecting the pressure change of the door frame by a pressure sensor, etc., and then inputting it to the MCUGPIO pin of the motherboard, or the door state information can be transmitted to the motherboard.

[0087] Furthermore, in this utility model, the switching device uses a relay, and the normally open contact of the relay is connected to the first power supply path, and the normally closed contact of the relay is connected to the second power supply path.

[0088] When the Hall magnetic sensor sends the first detection signal, the common terminal of the relay is connected to the normally open contact;

[0089] When the Hall magnetic sensor sends a second detection signal, the common terminal of the relay is connected to the normally closed contact.

[0090] By adjusting the state of the relay by sending a corresponding detection signal through the Hall magnetic sensor, the conduction of different power supply paths can be realized. Here, in the actual application of this utility model, there are two power supply outputs, namely a 5V power supply output and a 12V power supply output. Therefore, there are also two relays in this utility model, which are respectively connected to the 5V power supply output and the 12V power supply output.

[0091] Please see Figure 4The relay has a common terminal (COM), a normally open contact (NO), and a normally closed contact (NC). The common terminal (COM) of the two relays is connected to the power supply output of the 5V power supply and the power supply output of the 12V power supply, respectively. When the second detection signal is received, the common terminal (COM) of the two relays is connected to the normally closed contact (NC). At this time, the power supply output is connected to all loads that are powered on in the open state, that is, the first power supply path is turned on. Since there are no loads with a working voltage of 12V powered on in the open state, the relay connected to the power supply output of the 12V power supply is equivalent to being idle. The relay connected to the power supply output of the 5V power supply is connected to the load of the 5V door opening group (that is, the bottle frame LED and the button inside the door), that is, the third sub-power supply path is turned on.

[0092] Please see Figure 5 When the first detection signal is received, the common terminal (COM) of both relays is connected to the normally open contact (NO). At this time, the power supply output is connected to all the loads that are powered on in the closed state, that is, the second power supply path is turned on. The relay connected to the power supply output of the 5V power supply is connected to the load of the 5V door closing group, and the relay connected to the power supply output of the 12V power supply is connected to the load of the 12V door closing group, that is, the first sub-power supply path and the second sub-power supply path are turned on.

[0093] As can be seen from the above settings, this utility model, based on the relay, can conduct a load that is adapted to the current door state and matches the working voltage under the control of the first detection signal and the second detection signal, thus meeting the user's needs. At the same time, the relay is more reliable than other door opening devices.

[0094] Furthermore, in this utility model, the aforementioned wiring harness switching device is integrated into the connection structure between the refrigerator body and the door, which can ensure that the switching action is performed according to the door state and meet the user's needs.

[0095] Please see Figure 6 The control process of this utility model is as follows: after the refrigerator is powered on and running, the door status is first detected by the detection sensor.

[0096] Then the detection signal is transmitted to the main board to determine whether the door is in the open state;

[0097] If the determination is yes, the corresponding PWM drive signal 1 is generated by the control unit in the motherboard to de-energize the relay coil. At this time, the normally closed contact closes, the third sub-power supply path is energized, and the bottle frame LED and the door internal button are powered on and work.

[0098] If the determination is negative, the corresponding PWM drive signal 2 is generated by the control unit in the motherboard to energize the relay coil and close the normally open contact. At this time, the first sub-power supply path and the second sub-power supply path are energized, and the external ambient light, external display screen, human sensor radar and humidification module are powered on and put into operation.

[0099] Finally, determine if the refrigerator has lost power. If not, return to the door status detection. If so, retain the settings before the power outage after the power outage ends.

[0100] Based on the above solution, this utility model has the following beneficial effects:

[0101] 1. This utility model divides the wiring harness into a first power supply path that is conductive in the closed state and a second power supply path that is conductive in the open state. The first power supply path is connected to all loads that are powered in the closed state, and the second power supply path is connected to all loads that are powered in the open state. Then, by switching the first power supply path and the second power supply path through a switching device, it can be ensured that only loads that are powered in the closed state are powered when the door is closed, and only loads that are powered in the open state are powered when the door is open, thus avoiding the problems of voltage conflict and energy waste.

[0102] 2. In this utility model, different voltages are provided by a voltage regulation module, and all sub-power supply paths are connected to the power supply output of the voltage regulation module. The voltage regulation module only needs to be connected to one 12V wire harness, so that the power supply wire harness in this utility model only needs one 12V power supply wire harness, thus solving the problem of redundant wire harnesses.

[0103] This utility model also proposes a refrigerator having the above-mentioned wiring harness switching device.

[0104] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wiring harness switching device for the connection between a refrigerator body and a door, comprising a detection sensor for detecting the opening and closing state of the door, characterized in that, It also includes a first power supply path for connecting to a load powered on when the door is in the closed state, a second power supply path for connecting to a load powered on when the door is in the open state, and a switching device for switching the first power supply path or the second power supply path to be connected. The switching device switches between the first power supply path and the second power supply path based on the detection signal from the detection sensor.

2. The wiring harness switching device for the connection between the refrigerator body and the door as described in claim 1, characterized in that, It also includes a signal transmission path for transmitting signals to a load when the door is in both the closed and open states, the signal transmission path being conductive when the door is in both the open and closed states.

3. The wiring harness switching device for the connection between the refrigerator body and the door as described in claim 1, characterized in that, It also includes a cabinet power supply for providing electrical power output, and a voltage regulation module connected to the cabinet power supply; The voltage regulation module switches the voltage output of the enclosure power supply to at least two power supply outputs with different voltages. The first power supply path and the second power supply path each have at least one sub-power supply path connected to the power supply output, and each sub-power supply path is simultaneously connected to all loads with matching voltage.

4. The wiring harness switching device for the connection between the refrigerator body and the door as described in claim 1, characterized in that, The detection sensors include a Hall magnetic sensor installed on the refrigerator body and a magnet installed on the refrigerator door. When the door is in the closed state, the Hall magnetic sensor emits a first detection signal to conduct the first power supply path; When the door is in the open state, the Hall magnetic sensor sends a second detection signal to activate the second power supply path.

5. The wiring harness switching device for the connection between the refrigerator body and the door as described in claim 4, characterized in that, The switching device uses a relay, and the normally open contact of the relay is connected to the first power supply path, and the normally closed contact of the relay is connected to the second power supply path. When the Hall magnetic sensor sends a first detection signal, the common terminal of the relay is connected to the normally open contact; When the Hall magnetic sensor sends a second detection signal, the common terminal of the relay is connected to the normally closed contact.

6. The wiring harness switching device for the connection between the refrigerator body and the door as described in claim 3, characterized in that, The voltage regulation module uses a DC-DC converter, which switches the voltage output of the enclosure power supply to a first power supply output for providing 5V voltage and a second power supply output for providing 12V voltage. The first power supply path has a first sub-power supply path connected to the first power supply output and a second sub-power supply path connected to the second power supply output; The second power supply path has a third sub-power supply path connected to the first power supply output.

7. The wiring harness switching device for the connection between the refrigerator body and the door as described in claim 6, characterized in that, The loads connected to the first sub-power supply path include an external display screen and a human detection radar; the loads connected to the second sub-power supply path include an external ambient light and a humidification module; and the loads connected to the third sub-power supply path include a bottle frame LED and door interior buttons.

8. The wiring harness switching device for the connection between the refrigerator body and the door as described in claim 2, characterized in that, The signal transmission path has two paths, and the two signal transmission paths are respectively connected to an external display screen and a human-sensing radar.

9. The wiring harness switching device for the connection between the refrigerator body and the door as described in claim 1, characterized in that, The wiring harness switching device is integrated into the connection structure between the refrigerator body and the door.

10. A refrigerator, characterized in that, The refrigerator has a wiring harness switching device for the connection between the refrigerator body and the door as described in any one of claims 1 to 9.

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