CN207831774U - The ducting system and its refrigerator of the controllable multi-temperature zone of single system for refrigerator - Google Patents
The ducting system and its refrigerator of the controllable multi-temperature zone of single system for refrigerator Download PDFInfo
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- CN207831774U CN207831774U CN201721860698.XU CN201721860698U CN207831774U CN 207831774 U CN207831774 U CN 207831774U CN 201721860698 U CN201721860698 U CN 201721860698U CN 207831774 U CN207831774 U CN 207831774U
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Abstract
The utility model is related to the ducting systems of the controllable multi-temperature zone of single system for refrigerator, refrigerator includes a freezing chamber, one refrigerating chamber and at least a temperature controlled compartment, and refrigerator corresponds to one evaporator of setting at the position of freezing chamber and one and is fixed on the wind turbine of wind intracavitary, ducting system includes the freezing wind inlet channel for wind chamber to be connected with freezing chamber inner cavity, refrigeration wind inlet channel for wind chamber to be connected with refrigerating chamber cavity, ducting system further includes having one end to be communicated in wind chamber, the other end is communicated in the alternating temperature wind inlet channel of temperature controlled compartment inner cavity, the alternating temperature air door blown into temperature controlled compartment for controlling wind turbine is installed on alternating temperature wind inlet channel.Ducting system provided by the utility model, using an evaporator, the temperature of multi-temperature zone is controlled by freezing the multiple mutually independent air ducts realizations of wind inlet channel, refrigeration wind inlet channel, alternating temperature wind inlet channel, the effect of single system control multi-temperature zone is realized, reduces manufacturing cost.
Description
Technical field
The utility model is related to refrigerator art, it is specifically related to the air duct for the controllable multi-temperature zone of the single system of refrigerator
System has further related to the refrigerator for being equipped with the ducting system.
Background technology
Wind cooling refrigerator has many advantages, such as that refrigerating speed is fast, does not have to defrosting.The air duct system of traditional clamshell doors three-temperature-zone refrigerator
System is mostly to be designed using the multisystem of three evaporator of the dual system with double evaporators or band, compressor load is caused to aggravate, and zero
Component manufacturing cost is high, and refrigerator is expensive.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of wind of the controllable multi-temperature zone of the single system for refrigerator
Road system can control multiple warm areas using the single system of one evaporator of band, reduce manufacturing cost.
Technical problem to be solved in the utility model, which also resides in, provides a kind of refrigerator being mounted with above-mentioned ducting system.
In order to solve the above technical problems, the utility model provides following technical scheme：Single system for refrigerator is controllably more
The ducting system of warm area, the refrigerator include a freezing chamber, a refrigerating chamber and at least one temperature controlled compartment, and refrigerator correspond to it is cold
Freeze a setting one evaporator and wind turbine for being fixed on wind intracavitary at the position of room, the ducting system includes for by wind
Wind is entered the wind in the freezing wind inlet channel that chamber is connected with freezing chamber inner cavity, the refrigeration for wind chamber to be connected with refrigerating chamber cavity
Road, the ducting system further include there is one end to be communicated in wind chamber, the other end is communicated in the alternating temperature wind inlet channel of temperature controlled compartment inner cavity, become
The alternating temperature air door blown into temperature controlled compartment for controlling wind turbine is installed on warm wind inlet channel.
On the basis of above-mentioned technical proposal, the alternating temperature wind inlet channel includes to be connected positioned at air intake and with wind chamber
Alternating temperature air inlet area, one end are communicated in alternating temperature air inlet area and the other end is communicated in the alternating temperature intake stack of temperature controlled compartment inner cavity.
On the basis of above-mentioned technical proposal, one is provided at the upper back position of the temperature controlled compartment inner cavity by two pieces of air ducts
Cystosepiment surrounds the closing wind pushing cavity；The alternating temperature wind inlet channel further includes having wind pushing cavity and being opened on the cystosepiment of air duct
And the air pushing hole for wind pushing cavity to be connected with temperature controlled compartment inner cavity, the outlet air end of alternating temperature intake stack are located in wind pushing cavity and become
Warm air door is fixedly mounted on the outlet air end of alternating temperature intake stack.
As alternating temperature air inlet area, a kind of preferred embodiment of alternating temperature intake stack technical characteristic：The alternating temperature intake stack is
The middle part alternating temperature intake stack being arranged between freezing chamber and temperature controlled compartment；Alternating temperature air inlet area is tilt distribution in wind chamber side
And the inclination alternating temperature on alternating temperature intake stack top enters the wind area in the middle part of top is communicated in wind chamber, bottom end is communicated in, and tilts alternating temperature air inlet
The tilt distribution angle in area is 20 ° -60 °.
On the basis of above-mentioned technical proposal, the inclination alternating temperature enters the wind and offers rhone on indoor bottom angled face.
As alternating temperature air inlet area, another preferred embodiment of alternating temperature intake stack technical characteristic：Alternating temperature air inlet area is
Air inlet that wind chamber lower position opens up, being connected with wind chamber is corresponded on rear side of refrigerator, the alternating temperature intake stack is setting
Rear portion alternating temperature intake stack on rear side of freezing chamber.
On the basis of above-mentioned technical proposal, the ducting system further includes having the freezing return air being connected with freezing chamber inner cavity
Air duct, be connected with refrigerating chamber cavity refrigeration return airway, the alternating temperature return airway that is connected with temperature controlled compartment inner cavity, is refrigerated back
Wind air duct and alternating temperature return airway are respectively communicated in freezing chamber intracavity bottom.
On the basis of above-mentioned technical proposal, there are one the bubbles of connection freezing chamber inner cavity for the fixation of freezing chamber lateral wall bottom
Foam air duct, refrigeration return airway are respectively communicated in a foam air duct with alternating temperature return airway and connect commonly through the foam air duct
Pass through freezing chamber intracavity bottom.
A kind of preferred embodiment as alternating temperature return airway technical characteristic：At the back lower position of the temperature controlled compartment inner cavity
L-type air duct cover board there are one fixed, the alternating temperature return airway are to be formed between rear wall, bottom surface in air duct cover board and temperature controlled compartment
L-type return air channel.
Another preferred embodiment as alternating temperature return airway technical characteristic：The alternating temperature return airway is to be opened in temperature control
Room corresponds to the exhaust vent at rearward position on the side wall of freezing chamber side.
On the basis of above-mentioned technical proposal, the temperature controlled compartment is temperature-changing chamber, and the refrigerator includes one and is located at the cold of left side
Freeze room, a refrigerating chamber for being located at right upper portion and a temperature-changing chamber for being located at lower right side.
A kind of refrigerator includes ducting system described above.
The utility model has an advantageous effect in that compared with prior art：Ducting system provided by the utility model, is adopted
With an evaporator, realized by freezing wind inlet channel, refrigerating the multiple mutually independent air ducts of wind inlet channel, alternating temperature wind inlet channel
Temperature control to multi-temperature zone, realizes the effect of single system control multi-temperature zone, reduces manufacturing cost.
Description of the drawings
Fig. 1 is the utility model air duct system for refrigerator structural schematic diagram；
Fig. 2 is the structural schematic diagram of the utility model alternating temperature wind inlet channel outlet air end；
Fig. 3 is alternating temperature intake stack structural schematic diagram in the middle part of the utility model；
Fig. 4 is the structural schematic diagram that the utility model tilts that alternating temperature enters the wind area；
Fig. 5 is the utility model drainage channel structure schematic diagram；
Fig. 6 is structural schematic diagram of the utility model alternating temperature air inlet area when being air inlet；
Fig. 7 is the utility model rear portion alternating temperature intake stack structural schematic diagram；
The front side angle schematic diagram that Fig. 8 is the utility model alternating temperature return airway when being return air channel；
The rear side angle schematic diagram that Fig. 9 is the utility model alternating temperature return airway when being return air channel；
The structural schematic diagram that Figure 10 is the utility model alternating temperature return airway when being exhaust vent；
Figure 11 is the mated condition schematic diagram that the utility model tilts that alternating temperature enters the wind area and wind turbine.
Figure label is：1- freezing chambers, 11- foams air duct, 2- refrigerating chambers, 21- refrigerate wind inlet channel, and 22- refrigerates return air
Air duct, 3- temperature-changing chambers, 31- alternating temperature wind inlet channels, 311- tilt alternating temperature and enter the wind area, 3111- rhones, the middle parts 312- alternating temperature air inlet
Pipeline, 313- air inlets, the rear portions 314- alternating temperature intake stack, 315- wind pushing cavities, 316- air pushing holes, 321- return air channels, 322-
Exhaust vent, 33- alternating temperature air doors, the air ducts 34- cystosepiment, 35- air duct cover boards, 4- wind turbines, 41- wind chambers.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model
Limitation.
Referring to figs. 1 to Figure 11, the ducting system of the controllable multi-temperature zone of single system for refrigerator, the refrigerator includes one cold
Freeze the 1, refrigerating chamber 2 in room and at least one temperature controlled compartment, the temperature controlled compartment is temperature-changing chamber 3 in the present embodiment, and the refrigerator
Including 1, refrigerating chamber 2 for being located at right upper portion of a freezing chamber for being located at left side and a temperature-changing chamber for being located at lower right side
3, referring to Fig.1.Certain temperature controlled compartment quantity is not limited to one, can also be multiple.
Refrigerator corresponds to one evaporator of setting and a wind turbine 4 being fixed in wind chamber 41 at the position of freezing chamber 1, described
Ducting system includes freezing wind inlet channel for wind chamber 41 to be connected with 1 inner cavity of freezing chamber, for by wind chamber and refrigeration
The refrigeration wind inlet channel 21 that 2 inner cavity of room is connected, further include have the freezing return airway being connected with 1 inner cavity of freezing chamber, with it is cold
Hide the refrigeration return airway 22 that 2 inner cavity of room is connected.Related evaporator, wind chamber 41 and wind turbine 4 above-mentioned, freezing wind inlet channel,
It is existing knowledge to freeze return airway, refrigeration wind inlet channel 21 and refrigerate the operation principle of return airway 22, no longer superfluous herein
It states.
The outstanding contributions that the utility model is made are：Ducting system provided by the utility model further includes having one end connection
It is communicated in the alternating temperature wind inlet channel 31 of 3 inner cavity of temperature-changing chamber in wind chamber 41, the other end, is equipped on alternating temperature wind inlet channel 31 for controlling
The alternating temperature air door 33 that wind turbine processed is blown into temperature-changing chamber 3.Ducting system further includes having the alternating temperature being connected with 3 inner cavity of temperature-changing chamber to return
Wind air duct, refrigerates return airway 22 and alternating temperature return airway is respectively communicated in 3 intracavity bottom of freezing chamber；Particularly：Freezing chamber 3
Lateral wall bottom is fixed there are one the foam air duct 11 of connection freezing chamber inner cavity, and return airway 22 and alternating temperature return airway point are refrigerated
It is not communicated in foam air duct 11 and is communicated in 3 intracavity bottom of freezing chamber commonly through the foam air duct 11.
Ducting system provided by the utility model, using an evaporator, by freezing wind inlet channel, refrigeration air inlet wind
The multiple mutually independent air ducts of road, alternating temperature wind inlet channel, which are realized, controls the temperature of multiple warm areas, realizes that single system control is mostly warm
The effect in area, reduces manufacturing cost.
Detailed features in relation to the utility model alternating temperature wind inlet channel are：
With reference to Fig. 8, one is provided at the upper back position of 3 inner cavity of temperature-changing chamber and is surrounded by two blocks of air duct cystosepiments 34
Close wind pushing cavity 315.The alternating temperature wind inlet channel 31 include the alternating temperature air inlet area being connected positioned at air intake and with wind chamber 41,
One end is communicated in alternating temperature air inlet area and the other end is communicated in the alternating temperature intake stack 31 of 3 inner cavity of temperature-changing chamber；And alternating temperature wind inlet channel
31 further include having wind pushing cavity 315 and being opened on air duct cystosepiment 34 and be used to wind pushing cavity 315 with 3 inner cavity of temperature-changing chamber being connected
Logical air pushing hole 316, the wind that wind turbine 4 is blown out enter from alternating temperature air inlet area, alternating temperature intake stack, wind pushing cavity 315, air pushing hole 316
In 3 inner cavity of temperature-changing chamber.With reference to Fig. 2, the outlet air end of alternating temperature intake stack is located in wind pushing cavity 315 and alternating temperature air door 33 is fixedly mounted
On the outlet air end of alternating temperature intake stack, controls the wind energy that wind turbine 4 is blown out using alternating temperature air door 33 and enough go forward side by side into wind pushing cavity 315
Enter in temperature-changing chamber 3；The position of certain alternating temperature air door and be confined to it is above-mentioned be located in wind pushing cavity, alternating temperature can also be mounted on and entered the wind
The inside of pipeline, as long as disclosure satisfy that use condition and effect.
With reference to Fig. 3, the alternating temperature intake stack is the middle part alternating temperature blast pipe being arranged between freezing chamber 1 and temperature-changing chamber 3
Road 312.Referring to Fig.1 with Fig. 4, Figure 11, above-mentioned alternating temperature air inlet area is tilt distribution in 41 side of wind chamber and top connection
The inclination alternating temperature that alternating temperature intake stack 312 top in middle part is communicated in wind chamber, bottom end enters the wind area, tilts the inclination in alternating temperature air inlet area
Distribution angle is 40 °, which can also be 20 °, 60 °, this place is preferably 40 ° of heeling conditions.The wind that wind turbine 4 is blown out is straight
It connected inclination alternating temperature air inlet area 311 to enter in middle part alternating temperature intake stack 312, and then enters back into wind pushing cavity 315, temperature-changing chamber 3
It is interior；Referring to Fig.1 1, the utility model is coordinated using the inclination alternating temperature air inlet area 311 of tilt distribution with wind chamber 41, can be played very
Good air-supply effect.Meanwhile referring to Figure 5, it tilts and offers rhone on the bottom angled face in alternating temperature inlet air plenum 311
3111, which is communicated in the original drainage channel of freezing chamber, when there is water in inclination alternating temperature air inlet area 311, then
Discharge in rhone 3111 can be entered along bottom angled surface current, prevent water from entering middle part alternating temperature intake stack 312.
Certainly, other technical solutions can also be used for above-mentioned alternating temperature air inlet area, such as：Referring to figure 6 and figure 7,
Alternating temperature air inlet area is that air inlet 313 that 41 lower position of wind chamber opens up, being connected with wind chamber, institute are corresponded on rear side of refrigerator
It is the rear portion alternating temperature intake stack 314 being arranged in 1 rear side of freezing chamber to state alternating temperature intake stack.The wind that wind turbine 4 is blown out passes through air inlet
In the entrance of rear portion alternating temperature intake stack 314 wind pushing cavity 315, temperature-changing chamber 3 on rear side of mouth 313, chilled room.
Detailed features in relation to the utility model alternating temperature return airway are：
It is fixed at the back lower position of 3 inner cavity of temperature-changing chamber there are one L-type air duct cover board 35, the alternating temperature return airway is
The L-type return air channel 321 formed between rear wall, bottom surface in air duct cover board 35 and temperature-changing chamber 3, which, which is located at, send
The lower section of wind chamber 315 and the two are independently of each other, be not connected to mutually.It is blown into the wind in temperature-changing chamber 3 from wind pushing cavity 315, air pushing hole 316,
Foam air duct 11 is exited into from the return air channel 321 for being located at bottom rear after circulation in temperature-changing chamber 3, wind is in temperature-changing chamber 3
Inlet air, outlet air wind direction as shown in the arrow in Fig. 8 and Fig. 9.Utilize the air pushing hole 316 and return air channel of the utility model
321 match and can play the effect that circulates well, realize the control to temperature in temperature-changing chamber 3.
Certainly, other technical solutions can also be used for above-mentioned alternating temperature return airway, such as：Referring to Fig.1 0, become
Warm return airway is the exhaust vent 322 being opened on the side wall of the correspondence freezing chamber of temperature-changing chamber 3 side at rearward position.Wind is blown certainly
Hole 316 enters in temperature-changing chamber 3, enters foam air duct 11 through exhaust vent 322 after circulation in temperature-changing chamber 3.
Meanwhile the utility model also provides a kind of refrigerator, which includes above-mentioned ducting system, ducting system tool
Whole feature and function of ducting system in standby above-described embodiment.
Claims (12)
1. the ducting system of the controllable multi-temperature zone of single system for refrigerator, the refrigerator includes a freezing chamber, a refrigerating chamber
And at least one temperature controlled compartment, and refrigerator corresponds to one evaporator of setting and the wind for being fixed on wind intracavitary at the position of freezing chamber
Machine, the ducting system include freezing wind inlet channel for wind chamber to be connected with freezing chamber inner cavity, for by wind chamber with
The refrigeration wind inlet channel that refrigerating chamber cavity is connected, it is characterised in that：The ducting system further include have one end be communicated in wind chamber,
The other end is communicated in the alternating temperature wind inlet channel of temperature controlled compartment inner cavity, is equipped on alternating temperature wind inlet channel for controlling wind turbine to temperature controlled compartment
The alternating temperature air door of interior air-supply.
2. the ducting system of the controllable multi-temperature zone of the single system according to claim 1 for refrigerator, it is characterised in that：It is described
Alternating temperature wind inlet channel include alternating temperature air inlet area, the one end being connected positioned at air intake and with wind chamber be communicated in alternating temperature air inlet area and
The other end is communicated in the alternating temperature intake stack of temperature controlled compartment inner cavity.
3. the ducting system of the controllable multi-temperature zone of the single system according to claim 2 for refrigerator, it is characterised in that：It is described
It is provided with one at the upper back position of temperature controlled compartment inner cavity and surrounds the closing wind pushing cavity by two blocks of air duct cystosepiments；The alternating temperature
Wind inlet channel further includes having wind pushing cavity and being opened on the cystosepiment of air duct and be used to wind pushing cavity with temperature controlled compartment inner cavity being connected
The outlet air end of air pushing hole, alternating temperature intake stack is located in wind pushing cavity and alternating temperature air door is fixedly mounted on the outlet air of alternating temperature intake stack
On end.
4. the ducting system of the controllable multi-temperature zone of the single system according to claim 2 for refrigerator, it is characterised in that：It is described
Alternating temperature intake stack is the middle part alternating temperature intake stack being arranged between freezing chamber and temperature controlled compartment；Alternating temperature air inlet area is to tilt
It is distributed in wind chamber side and top is communicated in wind chamber, bottom end is communicated in the inclination alternating temperature air inlet on middle part alternating temperature intake stack top
Area, the tilt distribution angle for tilting alternating temperature air inlet area is 20 ° -60 °.
5. the ducting system of the controllable multi-temperature zone of the single system according to claim 4 for refrigerator, it is characterised in that：It is described
It tilts and offers rhone on the indoor bottom angled face of alternating temperature air inlet.
6. the ducting system of the controllable multi-temperature zone of the single system according to claim 2 for refrigerator, it is characterised in that：It is described
Alternating temperature air inlet area be on rear side of refrigerator corresponding wind chamber lower position open up, the air inlet that is connected with wind chamber, the alternating temperature into
Wind pipeline is the rear portion alternating temperature intake stack being arranged on rear side of freezing chamber.
7. the ducting system of the controllable multi-temperature zone of the single system according to claim 1 for refrigerator, it is characterised in that：It is described
Ducting system further includes that have be connected with freezing chamber inner cavity freezing return airway, the refrigeration return air that is connected with refrigerating chamber cavity
Air duct, the alternating temperature return airway being connected with temperature controlled compartment inner cavity, refrigerate return airway and alternating temperature return airway is respectively communicated in cold
Freeze room intracavity bottom.
8. the ducting system of the controllable multi-temperature zone of the single system according to claim 7 for refrigerator, it is characterised in that：It is described
Freezing chamber lateral wall bottom is fixed there are one the foam air duct of connection freezing chamber inner cavity, and return airway and alternating temperature return airway are refrigerated
It is respectively communicated in foam air duct and is communicated in freezing chamber intracavity bottom commonly through the foam air duct.
9. the ducting system of the controllable multi-temperature zone of the single system according to claim 7 for refrigerator, it is characterised in that：It is described
Fixed at the back lower position of temperature controlled compartment inner cavity there are one L-type air duct cover board, the alternating temperature return airway be air duct cover board with
The L-type return air channel formed between rear wall, bottom surface in temperature controlled compartment.
10. the ducting system of the controllable multi-temperature zone of the single system according to claim 7 for refrigerator, it is characterised in that：Institute
It is to be opened in temperature controlled compartment to correspond to exhaust vent on the side wall of freezing chamber side at rearward position to state alternating temperature return airway.
11. the ducting system of the controllable multi-temperature zone of the single system for refrigerator according to any one of claim 1-10,
It is characterized in that：The temperature controlled compartment be temperature-changing chamber, the refrigerator include one be located at left side freezing chamber, one be located at right upper portion
Refrigerating chamber and one be located at lower right side temperature-changing chamber.
12. a kind of refrigerator, it is characterised in that：It include the ducting system described in any one of the claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860698.XU CN207831774U (en) | 2017-12-27 | 2017-12-27 | The ducting system and its refrigerator of the controllable multi-temperature zone of single system for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860698.XU CN207831774U (en) | 2017-12-27 | 2017-12-27 | The ducting system and its refrigerator of the controllable multi-temperature zone of single system for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207831774U true CN207831774U (en) | 2018-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721860698.XU Active CN207831774U (en) | 2017-12-27 | 2017-12-27 | The ducting system and its refrigerator of the controllable multi-temperature zone of single system for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207831774U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940866A (en) * | 2017-12-27 | 2018-04-20 | 合肥雪祺电气有限公司 | The ducting system and its refrigerator of the controllable multi-temperature zone of single system for refrigerator |
| CN109373672A (en) * | 2018-11-06 | 2019-02-22 | 青岛海尔股份有限公司 | Refrigerator |
| CN109373673A (en) * | 2018-11-06 | 2019-02-22 | 青岛海尔股份有限公司 | Refrigerator |
| CN109489327A (en) * | 2018-11-06 | 2019-03-19 | 广东奥马冰箱有限公司 | A kind of refrigerator of clamshell doors multi-temperature zone list refrigeration system |
-
2017
- 2017-12-27 CN CN201721860698.XU patent/CN207831774U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940866A (en) * | 2017-12-27 | 2018-04-20 | 合肥雪祺电气有限公司 | The ducting system and its refrigerator of the controllable multi-temperature zone of single system for refrigerator |
| CN109373672A (en) * | 2018-11-06 | 2019-02-22 | 青岛海尔股份有限公司 | Refrigerator |
| CN109373673A (en) * | 2018-11-06 | 2019-02-22 | 青岛海尔股份有限公司 | Refrigerator |
| CN109489327A (en) * | 2018-11-06 | 2019-03-19 | 广东奥马冰箱有限公司 | A kind of refrigerator of clamshell doors multi-temperature zone list refrigeration system |
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Address after: 230000 workshop in the second park of North private science and Technology Park, Tangkou Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee after: Hefei Xueqi Electric Co.,Ltd. Address before: 230000 workshop in the second park of North private science and Technology Park, Tangkou Road, Hefei Economic and Technological Development Zone, Anhui Province Patentee before: HEFEI SNOWKY ELECTRIC Co.,Ltd. |