Vehicle charging connector and vehicle

Abstract

The utility model discloses a vehicle charging connector and a vehicle, the vehicle charging connector comprises a charging seat, a state detection sensor and a battery joint, the charging seat comprises a first shell and a charging terminal, the charging terminal is fixed in the first shell, the state detection sensor is fixed in the first shell, and the battery joint is fixed in the first shell. The battery connector comprises a second shell, a battery connecting terminal, a first interlocking terminal and a second interlocking terminal, the battery connecting terminal, the first interlocking terminal and the second interlocking terminal are respectively fixed in the second shell, the battery connecting terminal is electrically connected with the charging terminal, and the battery connecting terminal is used for being electrically connected with the battery module; the first interlocking terminal and the second interlocking terminal are electrically connected with the state detection sensor respectively, and the first interlocking terminal and the second interlocking terminal are used for being electrically connected with a battery controller. Therefore, under the condition of only occupying a pair of terminals of the battery controller, the detection of the states of the high-voltage interlocking and the charging seat can be realized at the same time, so that the waste of interfaces of the battery controller is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle power batteries, and particularly to a vehicle charging connector and a vehicle. Background Art

[0002] In new energy vehicles, a vehicle charging connector needs to be provided to charge the vehicle-mounted battery. Specifically, the vehicle-mounted battery is disposed in a receiving cavity inside the vehicle body, and the charging base of the vehicle charging connector is disposed on the vehicle body. The vehicle-mounted battery is electrically connected to the vehicle charging connector to charge the vehicle-mounted battery when the charging base is connected to an external power supply.

[0003] In the related art, when charging the vehicle-mounted battery, a high-voltage interlock circuit is required to detect whether the battery connection terminal of the vehicle charging connector is properly connected to the battery connection seat of the vehicle-mounted battery, and a status detection circuit is required to detect whether the status such as temperature of the charging base is abnormal, so as to ensure the safety of the vehicle during the charging process.

[0004] However, the high-voltage interlock circuit and the status detection circuit need to occupy multiple BMS (Battery Manage System) interfaces, resulting in waste of BMS interfaces. Summary of the Utility Model

[0005] Embodiments of the present disclosure provide a vehicle charging connector and a vehicle, which can solve the above technical problems existing in the related art. The technical solutions are as follows:

[0006] In a first aspect, a vehicle charging connector is provided. The vehicle charging connector includes a charging base, a status detection sensor, and a battery connector.

[0007] The charging base includes a first housing and charging terminals, and the charging terminals are fixed inside the first housing.

[0008] The status detection sensor is fixed inside the first housing.

[0009] The battery connector includes a second housing, a battery connection terminal, a first interlock terminal, and a second interlock terminal. The battery connection terminal, the first interlock terminal, and the second interlock terminal are respectively fixed inside the second housing. The battery connection terminal is electrically connected to the charging terminals, and is used for electrically connecting to a battery module. The first interlock terminal and the second interlock terminal are respectively electrically connected to the status detection sensor, and are used for electrically connecting to a battery controller.

[0010] In a possible implementation, the status detection sensor is a temperature sensor.

[0011] In a possible implementation, the charging base includes two charging terminals, and the charging base further has a detection portion. The detection portion is fixed inside the first housing and between the two charging terminals, and the state detection sensor is fixed inside the detection portion.

[0012] In a possible implementation, the detection portion has a plurality of mounting grooves. The vehicle charging connector includes a plurality of the state detection sensors, and the plurality of state detection sensors are fixedly arranged in the plurality of mounting grooves in a one-to-one correspondence.

[0013] In a possible implementation, the plurality of mounting grooves are arranged in two columns along the arrangement direction of the two charging terminals.

[0014] In a possible implementation, the vehicle charging connector further includes a wire harness. The wire harness includes a charging wire and a signal wire. The charging wire is used for electrically connecting the charging terminal and the battery connection terminal, and the signal wire is used for electrically connecting the first interlock terminal, the second interlock terminal, and the state detection sensor.

[0015] In a possible implementation, the wire harness further includes a wire tube. The wire tube is used for accommodating the portions of the charging wire and the signal wire outside the charging base and the battery connector, or the wire tube is used for accommodating all of the charging wire and the signal wire outside the charging base and the battery connector.

[0016] In a possible implementation, the battery connection terminal protrudes beyond the first interlock terminal and the second interlock terminal.

[0017] In a possible implementation, the battery connector further includes a limiting assembly. The limiting assembly includes a connecting arm and a first limiting member. One end of the connecting arm is rotatably connected to the second housing, and the other end of the connecting arm is connected to the first limiting member. The first limiting member is used for limiting and cooperating with a second limiting portion on the battery connection seat.

[0018] In a second aspect, a vehicle is provided. The vehicle includes the vehicle charging connector according to any one of the first aspect.

[0019] The beneficial effects brought by the technical solution provided by the present disclosure at least include:

[0020] When the battery connection terminal is connected to the battery module, the status detection sensor forms a detection loop with the battery controller through the first interlock terminal and the second interlock terminal. The battery controller can determine whether the battery connection terminal is properly connected to the battery module based on whether it can receive the detection value of the status detection sensor. When it can receive the detection value of the status detection sensor, it can confirm whether the charging base is abnormal based on this detection value. Thus, the connection information of the battery connection terminal and the battery module and the status information of the charging base are both input to the battery controller through the first interlock terminal and the second interlock terminal. Using a pair of terminals of the battery controller can obtain these two types of information, eliminating the need to use two pairs of terminals, thereby avoiding waste of the interfaces of the battery controller.

[0021] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 is a schematic diagram of the connection logic during vehicle charging in the related art;

[0024] Figure 2 is a schematic diagram of the connection logic of a vehicle charging connector during vehicle charging in an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the structure of a vehicle charging connector and a battery pack in an embodiment of the present application;

[0026] Figure 4 is a partial structure schematic diagram of the structure of a vehicle charging connector and a battery pack in an embodiment of the present application;

[0027] Figure 5 is a partial structure schematic diagram of a vehicle charging connector in an embodiment of the present application;

[0028] Figure 6 is another partial structure schematic diagram of a vehicle charging connector in an embodiment of the present application.

[0029] Reference Signs:

[0030] 1, charging base; 11, first housing; 12, charging terminal;

[0031] 2, status detection sensor;

[0032] 3. Battery connector; 31. Second housing; 311. Signal hole; 32. Battery connection terminal; 33. First interlock terminal; 34. Second interlock terminal; 35. Limit component; 351. Connecting arm; 352. First limiting member;

[0033] 4. Battery pack; 41. Battery module; 42. Battery controller; 43. Battery connection base; 431. Second limiting member; 432. Charging port; 433. First signal terminal; 434. Second signal terminal;

[0034] 5. Wiring harness; 51. Charging wire; 52. Signal wire; 53. Wire tube. Detailed implementation manner

[0035] To make the purpose, technical solution and advantages of the present disclosure clearer, the following will further describe the embodiments of the present application in detail with reference to the accompanying drawings.

[0036] Please refer to Figure 1 , in the field of new energy vehicles, when charging the battery pack 4 on the vehicle, it is necessary to detect whether the battery connector 3 of the vehicle charging connector and the battery pack 4 are properly connected through the high-voltage interlock circuit, and detect whether the status such as temperature of the charging base 1 is abnormal through the status detection circuit to ensure the safety of the vehicle during the charging process.

[0037] In the related art, the first interlock terminal 33 and the second interlock terminal 34 that are short-circuited with each other are often provided on the battery connector 3 of the vehicle charging connector, and the corresponding first signal terminal 433 and the second signal terminal 434 are provided on the battery connection base 43 of the battery pack 4. The first signal terminal 433 and the second signal terminal 434 are respectively electrically connected to the battery controller 42 to charge the battery module 41 when the charging terminal 12 on the charging base 1 is electrically connected to an external power source and the battery connection terminal 32 on the battery connector 3 is electrically connected to the charging port 432 on the battery connection base 43.

[0038] During charging, the first interlock terminal 33 and the first signal terminal 433 are electrically connected, and the second interlock terminal 34 and the second signal terminal 434 are electrically connected, so that a high-voltage interlock loop can be formed with the battery controller 42. The battery controller 42 can then confirm whether the battery connector 3 and the battery connection base 43 are properly connected according to the electrical signals in the high-voltage interlock loop, and issue a reminder in a timely manner when the battery connector 3 and the battery connection base 43 are abnormally disconnected. A status detection sensor 2 is provided on the charging base 1. The status detection sensor 2 is connected to the battery controller 42 through a signal line and forms a status detection loop with the battery controller 42. The battery controller 42 can then confirm the status of the charging base 1 (such as temperature, etc.) according to the detection value of the status detection sensor 2, and disconnect the charging loop in a timely manner when the status of the charging base 1 is abnormal.

[0039] However, in the above structure, the high-voltage interlock loop and the status detection loop need to occupy multiple interfaces of the battery controller 42, resulting in waste of the interfaces of the battery controller 42.

[0040] An embodiment of the present disclosure provides a vehicle charging connector. Please refer to Figure 2 、 Figure 5 and Figure 6 . The vehicle charging connector includes a charging base 1, a status detection sensor 2, and a battery connector 3. Among them, the charging base 1 includes a first housing 11 and charging terminals 12. The charging terminals 12 are fixed inside the first housing 11, and the status detection sensor 2 is fixed inside the first housing 11. The battery connector 3 includes a second housing 31, battery connection terminals 32, a first interlock terminal 33, and a second interlock terminal 34. The battery connection terminals 32, the first interlock terminal 33, and the second interlock terminal 34 are respectively fixed inside the second housing 31. The battery connection terminals 32 are electrically connected to the charging terminals 12. The battery connection terminals 32 are used to electrically connect to the battery module 41. The first interlock terminal 33 and the second interlock terminal 34 are respectively electrically connected to the status detection sensor 2. The first interlock terminal 33 and the second interlock terminal 34 are used to electrically connect to the battery controller 42.

[0041] The battery pack 4 on the vehicle includes a battery module 41, electrically connects to the battery controller 42 and a battery connection base 43. The battery connection base 43 is used to connect to the battery connector 3. The battery connection base 43 includes a charging port 432, a first signal terminal 433, and a second signal terminal 434. The charging port 432 is electrically connected to the battery module 41. The first signal terminal 433 and the second signal terminal 434 are electrically connected to the battery controller 42. When the battery connection base 43 and the battery connector 3 are connected and matched, the battery connection terminals 32 are electrically connected to the charging port 432, the first interlock terminal 33 and the first signal terminal 433 are in contact, the second interlock terminal 34 and the second signal terminal 434 are in contact, and the first interlock terminal 33 and the second interlock terminal 34 are respectively connected to the status detection sensor 2.

[0042] In this way, the status detection sensor 2 forms a detection loop with the battery controller 42 through the first interlock terminal 33 and the second interlock terminal 34. The battery controller 42 can determine whether the battery connection terminal 32 and the battery module 41 are properly connected according to whether it can receive the detection value of the status detection sensor 2. When it can receive the detection value of the status detection sensor 2, it can confirm whether the charging base 1 is abnormal according to this detection value. Thus, the connection information of the battery connection terminal 32 and the battery module 41 and the status information of the charging base 1 are both input to the battery controller 42 through the first interlock terminal 33 and the second interlock terminal 34. By using a pair of terminals of the battery controller 42, these two kinds of information can be obtained, without the need to use two pairs of terminals, thereby avoiding the waste of the interfaces of the battery controller 42.

[0043] The battery controller 42 can be a chipset on the battery pack 4, and this chipset is electrically connected to form a BMS.

[0044] Optionally, the electrical signal in the detection loop can be a PWM wave or a high-level signal of 5 - 12V, and the signal is continuous.

[0045] The status detection sensor 2 is a temperature sensor.

[0046] When the vehicle is charging, the charging base 1 will get hot, but usually the temperature of the charging base 1 will be maintained within a reasonable range. If the temperature of the charging base 1 is too high, it indicates that there may be problems such as too high charging voltage, short circuit of the charging wire 51, aging, etc. These problems may lead to risks such as thermal runaway or even fire of the battery module 41. By setting a temperature sensor on the charging base 1, the temperature of the charging base 1 can be detected in time, so that the charging loop can be disconnected by the battery controller 42 when the charging base 1 is overheated. Thus, the risk of thermal runaway of the battery module 41 during the charging process of the vehicle can be reduced.

[0047] The status detection sensor 2 is a resistive temperature sensor, and its resistance value will change with the change of temperature, so that the temperature of the charging base 1 can be obtained according to the current in the detection loop.

[0048] Optionally, the BMS detects the status of the charging dock 1 periodically, which can be once every 5-10 ms. In the embodiments of the present disclosure, the two pins of the temperature sensor can be connected to the temperature detection channel of the BMS inside the battery pack 4 through the first interlock terminal 33 and the second interlock terminal 34, and the BMS periodically detects the temperature signal to replace the detection of the interlock signal (i.e., the connection status between the battery connection terminal 32 and the battery module 41). If the BMS detects that the temperature sensor resistance value is abnormal (such as infinite), it is determined that the interlock is disconnected; if the BMS detects that the temperature sensor resistance value is within the normal range, it is determined that the interlock connection is normal, and the temperature information is read.

[0049] The charging dock 1 includes two charging terminals 12. The charging dock 1 further has a detection part, which is fixed inside the first housing 11 and between the two charging terminals 12, and the status detection sensor 2 is fixed inside the detection part.

[0050] During the charging process, the temperature of the two charging terminals 12 connected to the external power supply changes most significantly, and their temperature often directly reflects the status of the charging circuit. By arranging the status detection sensor 2 between the two charging terminals 12, the temperature at the two charging terminals 12 can be detected in a timely manner, so that the battery controller 42 can confirm the status of the charging circuit during the charging process in a timely manner.

[0051] Optionally, the detection part can be made of an insulating material with strong thermal conductivity.

[0052] Furthermore, there are multiple mounting grooves inside the detection part. The vehicle charging connector includes multiple status detection sensors 2, and the multiple status detection sensors 2 are fixedly arranged in the multiple mounting grooves in a one-to-one correspondence.

[0053] In this way, by arranging multiple status detection sensors 2, the accuracy of the obtained temperature detection value can be improved, so as to accurately determine whether the charging dock 1 is overheated.

[0054] Furthermore, the multiple mounting grooves are arranged in two columns along the arrangement direction of the two charging terminals 12.

[0055] In this way, the status detection sensors 2 in the two columns of mounting grooves respectively detect the charging terminal 12 closer to them, so as to more accurately detect whether there is overheating in the two charging terminals 12.

[0056] Please refer to Figure 5 , the vehicle charging connector further includes a wire harness 5. The wire harness 5 includes a charging wire 51 and a signal wire 52. The charging wire 51 is used to electrically connect the charging terminal 12 and the battery connection terminal 32, and the signal wire 52 is used to electrically connect the first interlock terminal 33, the second interlock terminal 34 and the status detection sensor 2.

[0057] Please refer to Figure 4, a signal hole 311 is provided on the second housing 31. The signal hole 311 is disposed opposite to the first interlock terminal 33 and the second interlock terminal 34, and is used for the signal line 52 to pass through.

[0058] Please refer to Figure 5 , the wire harness 5 further includes a wire tube 53.

[0059] The wire tube 53 is used to accommodate the parts of the charging line 51 and the signal line 52 outside the charging base 1 and the battery connector 3.

[0060] Optionally, "the wire tube 53 is used to accommodate the parts of the charging line 51 and the signal line 52 outside the charging base 1 and the battery connector 3" may mean that the wire tube 53 restricts both of them at each position where the charging line 51 and the signal line 52 are outside the charging base 1 and the battery connector 3, or it may mean that the wire tube 53 restricts both of them at some positions where the charging line 51 and the signal line 52 are outside the charging base 1 and the battery connector 3.

[0061] In this way, the charging line 51 and the signal line 52 can be restricted simultaneously by the wire tube 53, thereby avoiding the entanglement of the wire harness 5 inside the vehicle.

[0062] The wire tube 53 can be a corrugated tube. In this way, the wire tube 53 can be bent conveniently to facilitate the routing of the wire harness 5 inside the vehicle.

[0063] In one embodiment, after the signal line 52 connected to the state detection sensor 2 leaves the charging base 1, it enters the wire tube 53 together with the charging line 51, exits from the tail end of the wire tube 53 and enters the battery connector 3, and is connected to the first interlock terminal 33 and the second interlock terminal 34.

[0064] Please refer to Figure 6 , the battery connection terminal 32 protrudes from the first interlock terminal 33 and the second interlock terminal 34.

[0065] In this way, when the first interlock terminal 33 engages with the first signal terminal 433 and the second interlock terminal 34 engages with the second signal terminal 434, the battery connection terminal 32 will surely engage with the charging port 432; when the first interlock terminal 33 disconnects from the first signal terminal 433 and the second interlock terminal 34 disconnects from the second signal terminal 434, there may be a situation where the battery connection terminal 32 disconnects from the battery module 41 or the battery connector 3 becomes loose. At this time, the battery controller 42 can issue a reminder and disconnect the circuit of the high-voltage equipment inside the vehicle to timely avoid and eliminate safety risks.

[0066] Please refer to Figure 4, the battery connector 3 further includes a limiting component 35. The limiting component 35 includes a connecting arm 351 and a first limiting member 352. One end of the connecting arm 351 is rotatably connected to the second housing 31, and the other end of the connecting arm 351 is connected to the first limiting member 352. The first limiting member 352 is used for limiting cooperation with a second limiting portion 431 on the battery connection base 43.

[0067] In this way, when inserting the battery connector 3 into the battery connection base 43, rotate the connecting arm 351 to enable the first limiting member 352 to avoid the second limiting member 431; after inserting the battery connector 3 into the battery connection base 43, rotate the connecting arm 351 to enable the first limiting member 352 to be in limiting cooperation with the second limiting member 431, so that the battery connector 3 can be tightly connected to the battery connection base 43 to avoid loosening.

[0068] The second limiting portion 352 is a limiting slot, and the first limiting portion 431 is a limiting protrusion.

[0069] Please refer to Figure 2 , another embodiment of the present application discloses a vehicle, which includes the vehicle charging connector disclosed in the previous embodiment.

[0070] The vehicle further includes a battery pack 4. The battery pack 4 includes a battery module 41, an electrically connected battery controller 42, and a battery connection base 43. The battery connection base 43 is used for connecting to the battery connector 3.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0072] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0073] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these orientation terms 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, it should not be construed as a limitation on the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0074] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations should be made for the spatial relative descriptions used here.

[0075] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above words have no special meanings. Therefore, it should not be construed as a limitation on the protection scope of the present application.

[0076] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A vehicle charging connector, characterized in that: The vehicle charging connector comprises a charging seat (1), a state detection sensor (2) and a battery connector (3); The charging seat (1) comprises a first shell (11) and a charging terminal (12), wherein the charging terminal (12) is fixed in the first shell (11); The state detection sensor (2) is fixed in the first housing (11); The battery connector (3) comprises a second shell (31), a battery connection terminal (32), a first interlocking terminal (33) and a second interlocking terminal (34); the battery connection terminal (32), the first interlocking terminal (33) and the second interlocking terminal (34) are respectively fixed in the second shell (31); the battery connection terminal (32) is electrically connected to the charging terminal (12); the battery connection terminal (32) is used to electrically connect a battery module (41); the first interlocking terminal (33) and the second interlocking terminal (34) are respectively electrically connected to the state detection sensor (2); the first interlocking terminal (33) and the second interlocking terminal (34) are used to electrically connect a battery controller (42).

2. The vehicle charging connector according to claim 1, characterized in that: The state detection sensor (2) is a temperature sensor.

3. The vehicle charging connector according to claim 2, characterized in that: The charging base (1) comprises two charging terminals (12). The charging base (1) also has a detection unit, which is fixed inside the first shell (11) and between the two charging terminals (12). The state detection sensor (2) is fixed inside the detection unit.

4. The vehicle charging connector according to claim 3, characterized in that: The detection part has a plurality of installation slots therein, and the vehicle charging connector includes a plurality of the state detection sensors (2), and the plurality of the state detection sensors (2) are fixed in the plurality of installation slots in a one-to-one correspondence.

5. The vehicle charging connector according to claim 4, characterized in that: The plurality of mounting grooves are arranged in two rows along the arrangement direction of the two charging terminals (12).

6. The vehicle charging connector according to claim 1, characterized in that: The vehicle charging connector also includes a wiring harness (5), the wiring harness (5) including a charging wire (51) and a signal wire (52), the charging wire (51) is used to electrically connect the charging terminal (12) and the battery connection terminal (32), and the signal wire (52) is used to electrically connect the first interlocking terminal (33), the second interlocking terminal (34) and the state detection sensor (2).

7. The vehicle charging connector according to claim 6, characterized in that: The wiring harness (5) further comprises a wiring harness tube (53), wherein the wiring harness tube (53) is used to accommodate the portion of the charging cable (51) and the signal cable (52) located outside the charging seat (1) and the battery connector (3).

8. The vehicle charging connector according to claim 1, characterized in that: The battery connection terminal (32) is arranged to protrude from the first interlocking terminal (33) and the second interlocking terminal (34).

9. The vehicle charging connector according to claim 1, characterized in that: The battery connector (3) further comprises a limiting assembly (35), wherein the limiting assembly (35) comprises a connecting arm (351) and a first limiting member (352), wherein one end of the connecting arm (351) is rotatably connected to the second shell (31), and the other end of the connecting arm (351) is connected to the first limiting member (352), and the first limiting member (352) is used for limiting cooperation with a second limiting portion (431) on the battery connector (43).

10. A vehicle, characterized in that: The vehicle comprises the vehicle charging connector according to any one of claims 1 to 9.

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