JP6706444B2 - Container and contactless power transmission system including the same - Google Patents

Description

The present invention relates to a container capable of non-contact power transmission, and a non-contact power transmission system including the container.

The storage described in Patent Document 1 is provided in a storage room, a wireless sensor having a function of detecting temperature, an antenna for communicating with the wireless sensor, information sensed by the wireless sensor and received through the antenna. And an information reading device for reading the information, and a control unit for acquiring information read by the information reading device and controlling the storage room. With this configuration, it is possible to arrange the sensor at an arbitrary location without considering wiring, and thus it is possible to obtain information on an arbitrary location in the storage chamber.

The non-contact power transmission system described in Patent Document 2 includes a power transmission device having a power transmission coil and a power reception device having a power reception coil and a flux collecting coil, and the power reception coil is mediated by the magnetic flux generated by passing a current through the power transmission coil. Transfer power to.

JP 2006-214644 A JP 2012-50209 A

In the storage described in Patent Document 1, neither the refrigerator main body nor the first refrigerating room can observe the inside without opening the door because of its structure and material, so that the stored items are stored in the outside air at every observation. There was a problem that the temperature and humidity changed when touched. For this reason, it is difficult to use it in applications such as culturing, where it is necessary to observe the inside without opening the container.

In the power receiving device of the non-contact power transmission system described in Patent Document 2, the installation location of the power receiving coil and the magnetic flux collecting coil is not limited, and the space for containing the substance is not provided inside. Furthermore, the power receiving device is not made of a material that transmits light. Therefore, even if a space for containing a substance is formed in the power receiving device, it is difficult to observe the inside unless the power receiving device is opened and exposed to the outside air.

In addition, in the storage described in Patent Document 1, although the temperature of the storage room and the like can be detected, the temperature and humidity of each container housed in the storage room cannot be measured. Therefore, due to the nature of the articles in the container, it is difficult to say that it is suitable for applications in which the temperature and humidity must be strictly controlled for each container.

Further, there is a large difference in the environment in the storage chamber between the case where a plurality of containers are stacked in the storage chamber and the case where the plurality of containers are placed flat. However, it was difficult to accurately measure the temperature and humidity of each container. On the other hand, if a plurality of containers are placed flat in the storage chamber in order to accurately measure temperature, humidity, etc., it is necessary to increase the floor area of the storage chamber, resulting in an increase in the size of the storage cabinet. There was a problem.

Then, an object of the present invention is to provide a container and a non-contact electric power transmission system which can observe a substance accommodated inside, without taking a lid part. Another object of the present invention is to provide a container and a non-contact power transmission system capable of detecting the environment such as temperature and humidity of each container placed at any location in the storage.

Still another object of the present invention is to provide a container and a non-contact power transmission system capable of detecting the environment of each container regardless of the accommodation form in the storage.

In order to solve the above-mentioned problems, the container of the present invention is a container including a dish main body capable of seeing through the inside, and a lid portion capable of seeing through the inside and covering an upper portion of the dish main body,
A power receiving coil is provided on the peripheral portion or side surface of the upper surface of the lid portion, or on the side surface of the dish body,
A container for supplying power to the power receiving coil by energizing a power supply coil provided in a non-contact manner with the power receiving coil outside the container,
The peripheral portion or the side surface of the upper surface of the lid portion of the container, or on the sides of the pan body, wherein the receiving coil and the power feeding coil is not electrically connected, and one load matching coil the power receiving coil It is provided between the feeding coils ,
The load matching coil constitutes a resonance circuit with a self-inductance of the load matching coil, an internal resistance of the load matching coil, and an electrostatic capacitance connected in series to the load matching coil,
The resonance frequency of the resonance circuit is 1 MHz or less,
The power receiving coil is stacked on the load matching coil along the height direction of the container,
A surface including the power feeding coil and a surface including the power receiving coil are parallel to each other.

With this, the inside can be observed without removing the lid, so that it is possible to provide a stable space that does not change the environment inside the container each time the observation is performed. Further, it is possible to accurately and surely detect and manage the environment such as temperature and humidity for each container while ensuring the degree of freedom in arranging the containers.

In the container of the present invention, the power receiving coil is preferably a printed pattern of conductive ink, a flexible printed board, or a conductive pattern formed by thin film formation or surface treatment.
This makes it possible to inexpensively form a power receiving coil having a desired shape at a desired position.

In the container of the present invention, the control circuit is arranged on the peripheral portion or the side surface of the upper surface of the lid portion or the side surface of the dish body, and the control circuit is preferably operated by the electric power supplied to the power receiving coil.
This makes it possible to manage the environment for each container.

In the container of the present invention, the antenna is arranged on the peripheral portion or the side surface of the upper surface of the lid portion or the side surface of the dish body, and the antenna transmits a signal to the outside of the container by the electric power supplied to the power receiving coil. Preferably.

This makes it possible to send environmental data such as temperature and humidity detected for each container to the outside.

In the container of the present invention, the environment sensor is arranged on the peripheral portion or the side surface of the upper surface of the lid portion or the side surface of the dish main body, and the environment sensor preferably operates by the electric power supplied to the power receiving coil.
This makes it possible to manage the environment for each container.

In the container of the present invention, a temperature/humidity sensor is preferable as the environment sensor. In the container of the present invention, the container is preferably a petri dish for culturing.
With the above configuration, it can be applied to culturing that requires strict environmental control.

A non-contact power transmission system according to the present invention includes : the container according to any one of claims 1 to 3; and a mounting surface on which the container is placed, and a power supply device including the power supply coil, The container is characterized in that a plurality of the containers are arranged in a stack in a direction perpendicular to the placing surface or are placed flat on the placing surface . This allows electric power to be supplied to each container.

In the non-contact power transmission system of the present invention, the power feeding coil is a printed pattern of conductive ink formed on the mounting surface, a flexible printed circuit board, or a conductive pattern formed by thin film formation or surface treatment. Is preferred.
As a result, it is possible to inexpensively form a power feeding coil having a desired shape at a desired position.

In the non-contact power transmission system of the present invention, it is preferable that the surface including the power feeding coil and the surface including the power receiving coil are parallel to each other.
As a result, power can be efficiently supplied from the power feeding coil to the power receiving coil.

In the contactless power transmission system of the present invention, it is preferable that a plurality of containers are stacked and arranged in a direction perpendicular to the mounting surface.

With the above configuration, there are few restrictions on the arrangement of the containers, so that the containers can be stacked and arranged without expanding the arrangement space.

In the contactless power transmission system of the present invention, it is preferable to include a wireless device capable of communicating with an external device.

This makes it possible to capture the progress and results of environmental management for each container into an external computer, tablet, or the like.

According to the present invention, it is possible to provide a container and a non-contact power transmission system that can observe the inside without removing the lid. Further, since wireless power supply can be performed for each container, it is possible to provide a container and a non-contact power transmission system that can accurately measure temperature, humidity and the like in each container.

(A) is a side view showing a state in which the dish body and the lid are separated in the container according to the embodiment of the present invention, and (B) is a state in which the lid is placed on the plate body in the container according to the embodiment of the present invention. It is a side view shown. It is a top view which shows the structure of the container which concerns on embodiment of this invention. It is a block diagram showing composition of a non-contact electric power transmission system concerning an embodiment of the present invention. It is a perspective view showing composition of a coil in an embodiment of the present invention. It is a circuit diagram which shows the relationship of the coil in embodiment of this invention. It is a side view showing the state where the containers concerning the embodiment of the present invention were piled up. It is a side view which shows the state which put the container which concerns on embodiment of this invention on the electric power feeder. It is a perspective view showing a state where a non-contact electric power transmission system concerning an embodiment of the present invention is arranged in a storage.

Hereinafter, a container and a non-contact power transmission system according to embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view showing a configuration of a container 10 according to the present embodiment, (A) shows a state where a dish body 30 and a lid portion 20 are separated, and (B) shows the dish body 30 with the lid portion 20. The respective states are shown. FIG. 2 is a plan view showing the configuration of the container 10.

As shown in FIG. 1, the container 10 has a cylindrical dish main body 30 having a bottom surface that allows the inside to be seen through, and a ceiling-like cylindrical lid that has a ceiling surface that hermetically covers the upper portion of the dish body 30. And a section 20. The container 10 is, for example, a petri dish for culturing inside, and the dish body 30 and the lid 20 are preferably formed of glass or a synthetic resin material that allows the inside to be seen through. As used herein, the term "visible through the inside" means a state in which the inside of the container 10 can be visually observed from the outside, such as transparent or translucent.

A coil portion 40 is provided on the upper surface 21 of the lid portion 20. As shown in FIG. 4, the coil unit 40 includes a power receiving coil 41 and a load matching coil 42 that are stacked along the height direction Z1 of the container 10. The coil portion 40 is arranged around the central portion 22 of the upper surface 21 of the lid portion 20. The coil portion 40 is formed by adhering a spirally wound conductor wire to the lid portion 20, and is also formed as a printed pattern of conductive ink, a flexible printed circuit board, or a conductive pattern formed by thin film formation or surface treatment. You can also do it. The power receiving coil 41 is supplied with power by energizing a power feeding coil 90 (FIG. 7) provided outside the container 10 so as to be in non-contact with the power receiving coil 41.

As shown in FIG. 1, a control module 50 and an antenna 60, which are electrically connected to each other by a conductor 70, are fixed to the side surface 23 of the lid 20 by adhesion. The control module 50 is electrically connected to the coil unit 40. The control module 50, the antenna 60, and the conducting wire 70 are covered with a non-conductive and non-translucent tape 80.

FIG. 3 is a block diagram showing the configuration of the contactless power transmission system according to this embodiment. FIG. 4 is a perspective view showing the configuration of the coil in this embodiment. FIG. 5 is a circuit diagram showing the relationship of the coils in this embodiment.

The non-contact power transmission system according to this embodiment includes a container 10 including the coil unit 40 and the control module 50, and a power supply device 100 that supplies power to the container 10 in a non-contact manner.

As shown in FIG. 3, the control module 50 mounted on the container 10 includes a control circuit 51 and a temperature/humidity sensor 52 as an environment sensor. The control circuit 51, the temperature/humidity sensor 52, and the antenna 60 operate with the power supplied to the power receiving coil 41. The temperature/humidity sensor 52 detects the temperature and humidity of the container 10 and outputs it to the control circuit 51. The control circuit 51 records the detection result of the temperature/humidity sensor 52 and the ID information set for each container 10 from the antenna 60 to the ID reader 92 through the antenna 93 of the power feeding device 100. The antenna 60 modulates, for example, a high-frequency carrier signal with a signal corresponding to the detection result of the temperature/humidity sensor 52 and the ID information and transmits the modulated signal. The time interval for recording a signal from the antenna 60 to the ID reader 92 and the ID information are stored in the storage unit of the control circuit 51 in advance.

Further, it is preferable that the control module 50 is provided with an indicator indicating that the power from the power supply apparatus 100 is being received. Providing this indicator is preferable because it is possible to replace the container 10 that has not received power due to a failure of the control module 50 or the like. A light emitting diode or the like is used as the indicator.

In the power supply apparatus 100, the information received by the ID reader 92 is stored in the storage unit of the control unit 91. When the external device requests the control unit 91 to take out the information stored in the storage unit, the information can be transmitted to the external device by the antenna 93 (radio device).

The relationship between the power feeding coil 90, the load matching coil 42 on the container 10 side, and the power receiving coil 41 is as shown in FIG.

The control unit 91 provided in the power supply device 100, to supply power supplied from an external power source 110, the feeding coil 90 as the AC voltage V _in a predetermined waveform _(FIG. 5) (energized). In the power feeding device 100, an oscillating circuit is configured by the power feeding coil (L ₁ ) 90, the capacitor C ₁ and the winding resistance r ₁ , and an alternating current of a predetermined frequency (1 MHz or less) is applied to the power feeding coil (L) 90. Be done. The capacitor C ₁ and the winding resistance r ₁ are arranged in the power feeding device 100.

On the container 10 side, a resonance circuit is configured by the load matching coil (L ₂ ) 42, the resonance capacitor C ₂ and the winding resistance r ₂ , and the power receiving coil (L ₃ ) 41 includes the winding resistance r ₂ and the control module. It is connected to a load R _L such as 50. On the container 10 side, the resonance capacitor C ₂ , the winding resistance r ₂ , the load R _L , and the winding resistance r ₃ are arranged in the control module 50.

In this configuration, the current magnetic field M ₁₂ is induced by the AC signal applied to the power feeding coil 90. The current magnetic field M ₁₂ is applied to the load matching coil (L ₂ ) 42 to cause resonance, and the induced magnetic field M ₂₃ due to this resonance is applied to the power receiving coil 41 to supply power to the load R _L.

Since the impedances are matched by the power feeding coil 90 and the load matching coil 42 and the power is fed to the power receiving coil 41, the power corresponding to the power supplied to the power feeding coil 90 can be efficiently transmitted to the power receiving coil 41. That is, by using the load matching coil 42, the load characteristics can be optimized, and in particular, when supplying power to the plurality of power receiving coils 41 with one power feeding coil 90, mutual interference does not occur. It is possible to increase the overall Q value of the plurality of power receiving coils 41 while suppressing the Q value to some extent.

FIG. 6 is a side view showing a state in which the containers 10 according to the present embodiment are stacked on the power supply device 100. FIG. 7 is a side view showing a state in which the container 10 according to the present embodiment is placed on the power supply device 100.

As shown in FIG. 6, the container 10 can be stacked by placing the dish main body 30 of another container 10 on the lid part 20 having the coil part 40 formed thereon. Here, when the fitting portions that are fitted to each other are provided on the upper portion of the lid portion 20 and the lower portion of the plate body 30, the position of the stacked containers 10 in the plane direction (direction orthogonal to the height direction) is determined, and all of them in the plane direction are determined. Since the central positions of the containers 10 are the same, the supply of electric power is more reliable, and the possibility of dropping due to displacement is reduced. The containers 10 thus stacked are placed on the mounting surface 101 of the power supply device 100 shown in FIG. 7. As a result, the containers 10 are stacked in the direction D1 perpendicular to the mounting surface 101.

Four areas 102, 103, 104, 105 (FIGS. 6 and 7) for arranging the container 10 are provided on the placing surface 101 having a substantially quadrangular shape in a plan view, and power is supplied to the peripheral portion so as to surround these areas. The coil 90 is formed. The feeding coil 90 is formed by adhering a conductive wire wound in a substantially rectangular shape to the mounting surface 101, and also as a printed pattern of conductive ink, a flexible printed circuit board, or a conductive pattern formed by thin film formation or surface treatment. It can also be formed. Here, the surface including the power feeding coil 90 and the surface including the power receiving coil 41 are parallel to each other. The container 10 may be placed flat without being stacked.

The power feeding device 100 and the container 10 arranged on the power feeding device 100 configured as described above constitute a non-contact power transmission system. In the contactless power transmission system of the present embodiment, by providing the load matching coil 42, even if the containers 10 are stacked, it is possible to suppress the Q value of each container to such an extent that mutual interference does not occur. Power can be supplied to the power receiving coil 41 of each container.

FIG. 8 is a perspective view showing a state in which the contactless power transmission system according to this embodiment is arranged in the storage 120. The power feeding device 100 is placed on the upper surface 122a of the main body 122 of the storage 120, and the containers 10 are stacked on the placement surface 101 of the power feeding device 100 in the direction D1 perpendicular to the placement surface 101. The lid 121 is placed on the main body 122 so as to surround the container 10 and the power supply device 100. The main body 122 is provided with a temperature controller (not shown), and the temperature in the space surrounded by the lid 121 and the main body 122 can be adjusted.

In the container 10 stored in the storage 120, the temperature/humidity sensor 52 detects the temperature/humidity and stores it in the storage unit of the control circuit 51. The detection result of the temperature/humidity sensor 52 is transmitted to the power supply device 100 together with the ID information of each container 10, is stored in the storage unit of the control unit 91, and is transmitted to the outside by the antenna 93. The external device that receives the data transmitted from the antenna 93 can check the temperature and humidity for each container 10.

With the above configuration, the following effects are achieved according to the above-described embodiment.
(1) Since the power receiving coil 41 is arranged at a position avoiding the central portion 22 of the upper surface 21 of the lid portion 20 through which the inside can be seen through, the container 10 is placed from above even when the lid portion 20 is placed on the dish body 30. The inside of can be observed. Therefore, since the internal environment is not changed by opening the container 10, a more preferable culture environment can be provided.

(2) Since the power receiving coil 41 is provided in each container 10 and the power feeding coil 90 is arranged outside the container 10, it is possible to supply power to the power receiving coil 41 without contacting the power feeding coil 90. It is possible to accurately control the temperature and humidity of each container 10 while ensuring the freedom of arrangement of the container 10.

(3) Desirable by forming the power receiving coil 41, the load matching coil 42, and the power feeding coil 90 with a printed pattern of a conductive ink, a flexible printed board, or a conductive pattern formed by thin film formation or surface treatment. The shape of can be formed accurately and inexpensively.

(4) By disposing the control module 50, the antenna 60, and the conducting wire 70 on the side surface of the lid 20, the inside of the container 10 can be observed from above even when the lid 20 is placed on the dish body 30.

(5) By making the surface including the power feeding coil 90 (the surface parallel to the mounting surface 101) parallel to the surface including the power receiving coil 41, the power feeding from the power feeding coil 90 to the power receiving coil 41 is efficiently performed. It can be carried out.
Furthermore, by stacking the containers 10 in which the coil portions 40 are arranged on the upper surface 21 of the lid portion 20 in the direction perpendicular to the mounting surface 101, the power feeding coils 90 can efficiently feed power to the respective power receiving coils 41. You can

(6) By using the load matching coils 42, it is possible to increase the overall Q value of the plurality of power receiving coils 41 while suppressing the Q values of the power receiving coils 41 of the respective containers 10 to the extent that mutual interference does not occur. ..

Modifications will be described below.
The coil portion 40 may be provided on the side surface of the lid portion 20 or the side surface of the dish body 30 in addition to the peripheral portion of the upper surface 21 of the lid portion 20. Further, the control module 50, the antenna 60, and the conducting wire 70 may be arranged not only on the side surface of the lid portion 20 but also on the peripheral edge portion of the upper surface 21 of the lid portion 20 or the side surface of the dish body 30. With these configurations, even when the lid 20 is placed on the dish body 30, the inside of the container 10 can be observed from above or below.

In FIG. 7, four areas 102, 103, 104, and 105 are arranged on the mounting surface 101, but the number and arrangement of the areas in which the container 10 is arranged are not limited to this.

Although the present invention has been described with reference to the above-described embodiments, the present invention is not limited to the above-described embodiments and can be improved or changed within the scope of the object of improvement or the idea of the present invention.

INDUSTRIAL APPLICABILITY As described above, the container and the non-contact power transmission system according to the present invention are useful in applications where strict environmental management is required and where there is a restriction on the space for arranging the container.

10 Container 20 Lid Part 22 Central Part 30 Dish Main Body 40 Coil Part 41 Power Receiving Coil 42 Load Matching Coil 50 Control Module 51 Control Circuit 52 Temperature/Humidity Sensor 60 Antenna 90 Power Supply Coil 100 Power Supply Device 101 Placement Surface 120 Storage

Claims (4)

A container comprising a dish body capable of seeing through the inside and a lid portion capable of seeing through the inside of the dish body,
A power receiving coil is provided on the peripheral portion or side surface of the upper surface of the lid portion, or on the side surface of the dish body,
A container for supplying power to the power receiving coil by energizing a power supply coil provided in a non-contact manner with the power receiving coil outside the container,
The peripheral portion or the side surface of the upper surface of the lid portion of the container, or on the sides of the pan body, wherein the receiving coil and the power feeding coil is not electrically connected, and one load matching coil the power receiving coil It is provided between the feeding coils ,
The load matching coil constitutes a resonance circuit with a self-inductance of the load matching coil, an internal resistance of the load matching coil, and an electrostatic capacitance connected in series to the load matching coil,
The resonance frequency of the resonance circuit is 1 MHz or less,
The power receiving coil is stacked on the load matching coil along the height direction of the container,
A container in which a surface including the power feeding coil and a surface including the power receiving coil are parallel to each other . A control circuit is arranged on the peripheral portion or the side surface of the upper surface of the lid portion, or on the side surface of the dish main body,
The control circuit operates by the power supplied to the power receiving coil ,
An antenna is arranged on the peripheral portion or side surface of the upper surface of the lid portion, or on the side surface of the dish main body,
The antenna transmits a signal to the outside of the container by the electric power supplied to the power receiving coil,
An environment sensor is arranged on the peripheral portion or the side surface of the upper surface of the lid portion, or on the side surface of the dish body,
The environmental sensor, the container according to 請 Motomeko 1 that runs by electric power supplied to the power receiving coil. The container according to claim 2 , wherein the environment sensor is a temperature/humidity sensor, and the container is a petri dish for culturing . A container as claimed in any one of claims 3, comprising a mounting surface on which said container is placed, and a feeding device in which the power supply coil is provided, said container, the placement A non-contact power transmission system, characterized in that a plurality of them are arranged in a stack in a direction perpendicular to the surface or a plurality of them are laid flat on the mounting surface .

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