Control method of automatic putting device and automatic putting device

Abstract

The invention discloses a control method of an automatic putting device and the automatic putting device.The control method of the automatic putting device comprises the steps that a liquid storage cavity and a suction pipeline communicated with the liquid storage cavity are arranged in the putting device, in the process that the suction pipeline sucks a detergent in the liquid storage cavity, whether the detergent flows through the suction pipeline or not is detected, and if not, the detergent flows through the suction pipeline; if yes, determining that no detergent exists in the liquid storage cavity, and prompting the user to add the detergent into the liquid storage cavity; whether the detergent flows through the suction pipeline or not is detected in the process that the suction pipeline sucks the detergent, when it is detected that no detergent flows through the suction pipeline, it is considered that no detergent exists in the liquid storage cavity, a user can be prompted to add the detergent into the liquid storage cavity, and the amount of the detergent in the liquid storage cavity can meet the putting requirement of the automatic putting device; the putting amount is accurate, and the washing effect on the clothes can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances, and in particular relates to a control method of an automatic dispensing device and the automatic dispensing device. Background Art

[0002] Now washing machines have entered the lives of many families. With the current development, automatic dispensing devices have become an important part of washing machines. The existing automatic dispensing device includes a box body and an upper cover covering the top opening of the box body. The box body is provided with a liquid storage cavity and a dispensing cavity. The upper cover is provided with a suction pipe. A suction pump is provided on the suction pipe. The liquid inlet and outlet of the suction pipe are connected with the liquid storage cavity and the dispensing cavity respectively. When dispensing, the suction pipe sucks the detergent in the liquid storage cavity under the action of the suction pump, and sucks the detergent into the dispensing cavity, and the dispensing cavity then dispenses the detergent into the washing machine.

[0003] In the prior art, most washing machines determine the amount of detergent to be dispensed by determining the action time of a suction pump and automatically dispense detergent. However, during the action of the suction pump, it is impossible to know whether there is detergent in the liquid storage chamber. When there is no detergent in the liquid storage chamber and the user cannot be prompted to add detergent to the liquid storage chamber, the amount of detergent ultimately dispensed by the automatic dispensing device will be insufficient, resulting in an inaccurate amount of detergent ultimately dispensed by the automatic dispensing device, leading to poor washing effect of the clothes.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a control method and an automatic dispensing device. By detecting whether detergent flows through the suction pipe during the process of sucking detergent through the suction pipe, when it is detected that no detergent flows through the suction pipe, it is considered that there is no detergent in the liquid storage chamber, and the user can be prompted to add detergent to the liquid storage chamber, so that the amount of detergent in the liquid storage chamber can meet the dispensing needs of the automatic dispensing device, the dispensing amount is accurate, and the purpose of improving the washing effect of clothes is achieved.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] The present invention provides a control method for an automatic dispensing device, wherein a liquid storage chamber and a suction pipe connected to the liquid storage chamber are provided in the dispensing device, and during the process in which the suction pipe sucks detergent in the liquid storage chamber, it is detected whether detergent flows through the suction pipe, and if not, it is determined that there is no detergent in the liquid storage chamber, and a user is prompted to add detergent to the liquid storage chamber.

[0008] Furthermore, if it is detected that the concentration of the detergent flowing through the suction pipe is equal to 0, it is determined that what is sucked out from the liquid storage chamber by the suction pipe is air, and no detergent flows through the suction pipe. It is determined that there is no detergent in the liquid storage chamber, the suction pipe stops performing the suction action, and the user adds detergent to the liquid storage chamber.

[0009] Furthermore, after detecting that the user has finished adding detergent into the liquid storage chamber, the suction pipe re-performs the suction action. After the suction pipe sucks the set first amount of detergent from the liquid storage chamber, it is detected whether detergent flows through the suction pipe during the suction process.

[0010] Furthermore, if it is detected that no detergent flows through the suction pipe during the suction process, it is determined that the user has not added detergent into the liquid storage chamber, and there is no detergent in the liquid storage chamber. The set first dosage is not included in the detergent dosage of the dosage device, and the suction pipe stops the suction action, and the user is prompted again to add detergent to the liquid storage chamber, and the cycle continues.

[0011] Furthermore, if it is detected multiple times that no detergent flows through the suction pipe during the suction process, it is determined that the dispensing device does not need to automatically dispense detergent.

[0012] Furthermore, if it is detected that detergent flows through the suction pipe during the suction process of the suction pipe, the suction pipe continues to suck the liquid storage chamber, so that the detergent delivery amount of the delivery device is the sum of the set total delivery amount and the set second delivery amount;

[0013] After the suction pipe performs the suction action again, the set second amount of detergent is sucked from the liquid storage chamber to remove the air in the suction pipe.

[0014] Furthermore, if it is detected that the concentration of the detergent flowing through the suction pipe is not equal to 0, it is determined that what is sucked out from the liquid storage chamber by the suction pipe is detergent, and there is detergent flowing through the suction pipe, and it is determined that there is detergent in the liquid storage chamber. The suction pipe continues to suck the liquid storage chamber, so that the detergent delivery amount of the delivery device is the set total delivery amount.

[0015] Furthermore, the set total dosage is obtained according to the concentration of the detergent flowing through the suction pipe, the weight of the clothes, the degree of dirtiness of the clothes and the water level of the water inlet.

[0016] Furthermore, during the pre-water inlet process, the turbidity of the washing water in the washing drum is obtained, and the amount of detergent already put into the washing drum is determined according to the turbidity of the washing water. Based on the difference between the set total amount of detergent put in and the amount of detergent already put in, the set amount of the automatic dispensing device is determined, and the washing dispensing amount of the dispensing device is made equal to the set amount of detergent put in, or the sum of the set amount of detergent put in and the second set amount of detergent put in.

[0017] The present invention also provides an automatic delivery device, including the control method of the automatic delivery device provided by the above technical solution.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0019] By detecting whether there is detergent flowing through the suction pipe during the process of sucking detergent through the suction pipe, when it is detected that no detergent flows through the suction pipe, it is considered that there is no detergent in the liquid storage chamber, and the user can be prompted to add detergent to the liquid storage chamber, so that the amount of detergent in the liquid storage chamber can meet the dispensing needs of the automatic dispensing device. The dispensing amount is accurate and the washing effect of the clothes can be improved.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0022] Figure 1 It is a flow chart of a control method of an automatic delivery device provided by an embodiment of the present invention.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0025] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The present invention provides a control method for an automatic dispensing device, wherein a liquid storage chamber and a suction pipe connected to the liquid storage chamber are provided in the dispensing device, and during the process in which the suction pipe sucks detergent in the liquid storage chamber, it is detected whether detergent flows through the suction pipe, and if not, it is determined that there is no detergent in the liquid storage chamber, and a user is prompted to add detergent to the liquid storage chamber.

[0028] In an embodiment of the present invention, by detecting whether detergent flows through the suction pipe during the process of sucking detergent through the suction pipe, when it is detected that no detergent flows through the suction pipe, it is considered that there is no detergent in the liquid storage chamber, and the user can be prompted to add detergent to the liquid storage chamber, so that the amount of detergent in the liquid storage chamber can meet the dispensing needs of the automatic dispensing device, the dispensing amount is accurate, and the washing effect of the clothes can be improved.

[0029] The automatic dispensing device is used for a drum washing machine, which includes a water drum and a casing. The automatic dispensing device is used to dispense detergent into the water drum. The automatic dispensing device is arranged outside the casing as an external dispensing device of the drum washing machine, or the automatic dispensing device is integrated on the drum washing machine as a built-in dispensing device of the drum washing machine. The water drum can be an inner drum or an outer drum.

[0030] The automatic dispensing device comprises a box body and a box cover that seals the top opening of the box body. A liquid storage chamber and a dispensing chamber are arranged inside the box body. A suction pipe and a water inlet pipe are arranged inside the upper cover. A suction pump is connected in series to the suction pipe. The liquid inlet and outlet of the suction pipe are respectively connected to the liquid storage chamber and the dispensing chamber. The water inlet of the water inlet pipe is connected to an external faucet through a pipeline, and the water outlet of the water inlet pipe is connected to the dispensing chamber. When dispensing, the suction pipe sucks the detergent in the liquid storage chamber into the dispensing chamber under the action of the suction pump, and the water inlet pipe supplies flushing water into the dispensing chamber, and the flushing water flushes the detergent into the water storage cylinder.

[0031] In addition, a negative pressure structure or the like may be connected to the liquid extraction pipeline to extract the detergent in the liquid storage chamber.

[0032] When the water storage cylinder is an outer cylinder and the automatic delivery device is an external delivery device, a water inlet pipe is provided on the outer cylinder, a water inlet valve is connected in series to the water inlet pipe, and the delivery cavity has a delivery port, and the delivery cavity is connected to the water inlet pipe through the delivery port.

[0033] The user is prompted to add detergent to the liquid storage chamber by the display of the display light set on the automatic dispensing device or the drum washing machine. For example, when the display light is red, the user is prompted to add detergent to the liquid storage chamber. When the display light is green, the user does not need to add detergent to the liquid storage chamber.

[0034] Since the user forgets to add detergent to the liquid storage chamber or fails to add a sufficient amount of detergent to the liquid storage chamber, the suction pipe continuously sucks the detergent in the liquid storage chamber, which will cause the detergent in the liquid storage chamber to continuously enter the dispensing chamber, resulting in the liquid storage chamber being out of detergent before the automatic dispensing device finishes dispensing. The present application adopts a method of suctioning and detecting, that is, while the suction pipe is sucking, it detects whether detergent is flowing through the suction pipe, which improves the detection efficiency and can promptly remind the user to add detergent to the liquid storage chamber, thereby shortening the dispensing time of the automatic dispensing device.

[0035] Furthermore, if it is detected that the concentration of the detergent flowing through the suction pipe is equal to 0, it is determined that what is sucked out from the liquid storage chamber by the suction pipe is air, and no detergent flows through the suction pipe. It is determined that there is no detergent in the liquid storage chamber, the suction pipe stops performing the suction action, and the user adds detergent to the liquid storage chamber.

[0036] If it is detected that the concentration of the detergent flowing through the suction pipe is not equal to 0, it is determined that the detergent is sucked out from the liquid storage chamber by the suction pipe, and detergent flows through the suction pipe. It is determined that there is detergent in the liquid storage chamber, and the suction pipe continues to suck the liquid storage chamber, so that the detergent delivery amount of the delivery device is the set total delivery amount.

[0037] The suction pipe of the present application is L-shaped, including a horizontal section and a vertical section located at the upper part of the horizontal end, the outer peripheral wall of the free end of the horizontal section is provided with a liquid inlet of the suction pipe with the opening facing downward, the outer peripheral wall of the free end of the vertical section is provided with a liquid outlet, a suction pump is provided at the liquid outlet, and a concentration sensor is provided at the vertical free end of the vertical section to detect the concentration of the detergent flowing through the suction pipe;

[0038] When there is detergent in the liquid storage chamber, the suction pipe is in a vacuum state, and the detergent in the suction pipe will not flow back. The sensor detects that the concentration of the detergent in the suction pipe is not equal to 0, and senses that there is detergent in the suction pipe. When there is no detergent in the liquid storage chamber and the liquid storage chamber is empty, the suction pipe cannot reach a vacuum state. The sensor detects that the concentration of the detergent in the suction pipe is equal to 0, and senses that there is air in the suction pipe.

[0039] More specifically, after detecting that the user has finished adding detergent into the liquid storage chamber, the suction pipe re-performs the suction action. After the suction pipe sucks the set first amount of detergent from the liquid storage chamber, it is detected whether there is detergent flowing through the suction pipe during the suction process.

[0040] The method of adding detergent into the liquid storage chamber is: open the upper cover of the automatic dispensing device, so that the adding port on the liquid storage chamber for adding detergent is exposed and opened, and detergent is added into the liquid storage chamber through the adding port. Then, by detecting the action that the upper cover of the automatic dispensing device is opened and then closed, it can be considered that the user has finished adding detergent into the liquid storage chamber.

[0041] After the user adds detergent into the liquid storage chamber, the suction pipe re-performs the suction action. It is believed that the first two pumps of the suction pump of the automatic dispensing device are air. Only the third pump of the suction pump can detect whether there is detergent flowing through the suction pipe. The sum of the suction amounts of the first three pumps of the suction pump is the set first dispensing amount.

[0042] If it is detected that no detergent flows through the suction pipe during the suction process, it is determined that the user has not added detergent to the liquid storage chamber, and there is no detergent in the liquid storage chamber. The set first dosage is not included in the detergent dosage of the dosage device, and the suction pipe stops the suction action, and the user is prompted to add detergent to the liquid storage chamber again, and the cycle continues;

[0043] The user does not add detergent into the liquid storage chamber, and no detergent flows through the suction pipe. It can be concluded that the first three pumps of the suction pump suck air, so the set first dosage is not included in the detergent dosage of the dosage device.

[0044] After determining that the user has not added detergent into the liquid storage chamber, in order to ensure that there is detergent in the liquid storage chamber, the user is prompted again to add detergent into the liquid storage chamber. After detecting that the user has finished adding detergent into the liquid storage chamber, the suction pipe re-executes the suction action. After the suction pipe sucks the set first amount of detergent from the liquid storage chamber, it is detected whether there is detergent flowing through the suction pipe during the suction process. This cycle can be repeated multiple times to clarify whether the user wants to add detergent to the liquid storage chamber and whether the automatic dispensing device needs to automatically dispense detergent into the washing machine.

[0045] Furthermore, if it is detected multiple times that no detergent flows through the suction pipe during the suction process, it is determined that the dispensing device does not need to automatically dispense detergent.

[0046] If it is detected multiple times that no detergent flows through the suction duct, it can be considered that the user has manually added detergent into the washing machine and there is no need for an automatic dispensing device to dispense detergent. Alternatively, because the clothes are relatively clean, no detergent is needed to clean them and only clean water is needed, so there is no need for an automatic dispensing device to dispense detergent.

[0047] Furthermore, if it is detected that detergent flows through the suction pipe during the suction process of the suction pipe, the suction pipe continues to suck the liquid storage chamber, so that the detergent delivery amount of the delivery device is the sum of the set total delivery amount and the set second delivery amount;

[0048] After the suction pipe performs the suction action again, the set second amount of detergent is sucked from the liquid storage chamber to remove the air in the suction pipe.

[0049] After the user re-adds detergent into the liquid storage chamber, the suction pipe performs the suction action again and detects detergent flowing through the suction pipe. Therefore, it is considered that the first three pumps of the suction pump pump detergent, the detergent sucked by the first two pumps of the suction pump is used to remove the air in the suction pipe, and the detergent sucked by the third pump of the suction pump is used for automatic delivery. Therefore, the suction amount of the first two pumps of this pump is the set second delivery amount.

[0050] In an embodiment of the present invention, the set total dosage is obtained according to the concentration of the detergent flowing through the suction pipe, the weight of the clothes, the degree of dirtiness of the clothes and the water level of the water inlet.

[0051] In the embodiment of the present invention, the concentration of detergent is different, the weight of clothes is different, the degree of dirtiness of clothes is different, and the amount of water entering the water drum (equivalent to the water level of the water drum) is different, so that the amount of detergent added by the automatic dispensing device to the water drum is different. According to the above factors, the amount of detergent added by the automatic dispensing device to the water drum, that is, the set total dispensing amount, is obtained;

[0052] For example, concentrated detergents and non-concentrated detergents have different concentrations, and a small dose of concentrated detergent has the same washing effect on clothes as a large dose of non-concentrated detergent.

[0053] The delivery process of the above delivery device is as follows:

[0054] Take the example of an automatic dispensing device dispensing 30ml of detergent;

[0055] S1, the washing machine is powered on and started, the suction pipe sucks the detergent in the liquid storage chamber, and step S2 is executed;

[0056] S2, the sensor senses whether detergent flows through the suction pipe, if not, execute step S3, if yes, execute step S9;

[0057] S3, the sensor senses that air is flowing through the suction pipe and there is no detergent in the liquid storage chamber, prompting the user to add detergent to the liquid storage chamber, and the suction pipe stops the suction action, and executes step S4;

[0058] S4, after detecting that the user has finished adding detergent into the liquid storage chamber, the suction pipe performs a suction action. After sucking 6 ml of detergent by three pumps, the sensor senses whether detergent flows through the suction pipe. If not, execute step S5. If yes, execute step S8.

[0059] S5, the sensor senses that air is flowing through the suction pipe, determines that the user has not added detergent to the liquid storage chamber, prompts the user to add detergent to the liquid storage chamber again, and clears the record of 6 ml of detergent suction, and executes step S6;

[0060] S6, the sensor senses whether detergent flows through the suction pipe again, if not, execute step S7, if yes, execute step S8;

[0061] S7. The sensor senses that air is flowing through the suction pipe and believes that the user has manually added detergent or wants to wash clothes with plain water. There is no need to add detergent, and the washing machine executes the subsequent program.

[0062] S8, the sensor senses that detergent is flowing in the suction pipe, and the suction pipe continues to suck, but the amount of detergent is increased by two more pumps of 4 ml on the basis of the set total amount, becoming 34 ml, and the remaining amount of air in the suction pipe is discharged, so that the automatic dispensing device stops dispensing when the amount of detergent dispensing reaches 34 ml;

[0063] S9. The sensor senses that detergent is flowing through the suction pipe, and the suction pipe continues to suck, causing the automatic dispensing device to stop dispensing when the dispensing amount reaches 30 ml.

[0064] Furthermore, during the pre-water inlet process, the turbidity of the washing water in the washing drum is obtained, and the amount of detergent already put into the washing drum is determined according to the turbidity of the washing water. Based on the difference between the set total amount of detergent put in and the amount of detergent already put in, the set amount of the automatic dispensing device is determined, and the washing dispensing amount of the dispensing device is made equal to the set amount of detergent put in, or the sum of the set amount of detergent put in and the second set amount of detergent put in.

[0065] During the pre-water filling process, the turbidity of the washing water in the washing drum is detected to determine whether detergent has been added. When it is determined that detergent has been added, the automatic dispensing program of the automatic dispensing device is adjusted to avoid repeated or excessive dispensing of detergent, which causes waste of detergent; after the pre-water filling is completed, the automatic dispensing device automatically dispenses detergent into the water drum.

[0066] When detergent has been added to the water drum, the dirt on the clothes will be more easily dissolved in the washing water, making the turbidity of the washing water relatively large. Therefore, when the turbidity of the detergent water detected is greater than the first set turbidity and less than the second set turbidity, it is considered that detergent has been manually or automatically added to the water drum, and the amount of detergent added to the water drum by the subsequent automatic dispensing device is the set amount.

[0067] Different turbidity value ranges match different detergent dosages.

[0068] In addition, when it is detected that the turbidity value of the washing water is greater than the second set turbidity, detergent can be added to the water drum without the need for an automatic dispensing device, and the operating parameters of the washing program or the rinsing program can be changed, for example, the rotation speed can be increased, the water temperature can be increased, etc.

[0069] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A control method for an automatic dispensing device, wherein the dispensing device is provided with a liquid storage chamber and a suction pipe connected to the liquid storage chamber, characterized in that: During the process of the suction pipe sucking the detergent in the liquid storage chamber, it is detected whether the detergent flows through the suction pipe. If not, it is determined that there is no detergent in the liquid storage chamber, and the user is prompted to add detergent to the liquid storage chamber.

2. The control method according to claim 1, characterized in that: If it is detected that the concentration of detergent flowing through the suction pipe is equal to 0, it is determined that what the suction pipe sucks out from the liquid storage chamber is air, and no detergent flows through the suction pipe. It is determined that there is no detergent in the liquid storage chamber, the suction pipe stops performing the suction action, and the user adds detergent to the liquid storage chamber.

3. The control method according to claim 2, characterized in that: After detecting that the user has finished adding detergent into the liquid storage chamber, the suction pipe performs the suction action again. After the suction pipe sucks the set first amount of detergent from the liquid storage chamber, it detects whether detergent flows through the suction pipe during the suction process.

4. The control method according to claim 3, characterized in that: If it is detected that no detergent flows through the suction pipe during the suction process, it is determined that the user has not added detergent into the liquid storage chamber, and there is no detergent in the liquid storage chamber. The set first dosage is not included in the detergent dosage of the dosage device, and the suction pipe stops the suction action, and the user is prompted again to add detergent to the liquid storage chamber, and this cycle is repeated.

5. The control method according to claim 4, characterized in that: If it is detected multiple times that no detergent flows through the suction pipe during the suction process, it is determined that the dispensing device does not need to automatically dispense detergent.

6. The control method according to claim 3, characterized in that: If it is detected that detergent flows through the suction pipe during the suction process, the suction pipe continues to suck the liquid storage chamber, so that the detergent delivery amount of the delivery device is the sum of the set total delivery amount and the set second delivery amount; After the suction pipe performs the suction action again, the set second amount of detergent is sucked from the liquid storage chamber to remove the air in the suction pipe.

7. The control method according to claim 2, characterized in that: If it is detected that the concentration of the detergent flowing through the suction pipe is not equal to 0, it is determined that the detergent is sucked out from the liquid storage chamber by the suction pipe, and detergent flows through the suction pipe. It is determined that there is detergent in the liquid storage chamber, and the suction pipe continues to suck the liquid storage chamber, so that the detergent delivery amount of the delivery device is the set total delivery amount.

8. The control method according to any one of claims 1 to 7, characterized in that: The set total dosage is obtained according to the concentration of the detergent flowing through the suction pipe, the weight of the clothes, the degree of dirtiness of the clothes and the water level.

9. The control method according to claim 8, characterized in that: During the pre-water inlet process, the turbidity of the washing water in the washing drum is obtained, and the amount of detergent already put into the washing drum is determined according to the turbidity of the washing water. Based on the difference between the set total amount of detergent put in and the amount of detergent already put in, the set amount of the automatic dispensing device is determined, and the washing dispensing amount of the dispensing device is made equal to the set amount of detergent put in, or the sum of the set amount of detergent put in and the second set amount of detergent put in.

10. An automatic delivery device, characterized in that: A control method comprising the automatic delivery device as described in any one of claims 1 to 9.

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