Flexible mattresses, bed frames and electric beds

Abstract

The present invention discloses a flexible mattress, a bed frame and an electric bed, wherein an electric device is arranged inside the flexible mattress, a first coil and a current conversion circuit electrically connected to the first coil are arranged inside the flexible mattress, and the current conversion circuit is electrically connected to the electric device; when the flexible mattress is placed on the bed frame provided with a second coil, if the second coil generates an alternating magnetic field, the first coil and the second coil have mutual induction, and power is supplied to the electric device through the current conversion circuit. The present invention aims to solve the problem that wired power supply will cause wire pulling when the electric device is embedded in the flexible mattress.

Description

Technical Field

[0001] The invention relates to the technical field of furniture, in particular to a flexible mattress, a bed frame and an electric bed. Background Art

[0002] Existing electric beds will deploy electrical appliances such as vibrating massagers, heaters, and sensors on the flexible mattress. However, the flexible mattress is elastic and all surfaces are made of flexible materials such as fabric. If the flexible mattress has built-in electrical equipment and is connected to an external power supply with wires, when the electric bed is in use, such as when the height of the electric bed is adjusted, the flexible mattress will adjust its height accordingly, causing the wires to be pulled and easily damaged. Summary of the invention

[0003] The main purpose of the present invention is to provide a flexible mattress, a bed frame and an electric bed, aiming to solve the problem that wire power supply will cause wire pulling when the flexible mattress has built-in electrical equipment.

[0004] The present invention provides a flexible mattress, wherein an electric device is arranged inside the flexible mattress, a first coil and a current conversion circuit electrically connected to the first coil are arranged inside the flexible mattress, and the current conversion circuit is electrically connected to the electric device;

[0005] When the flexible mattress is placed on the bed frame with the second coil, if the second coil generates an alternating magnetic field, the first coil and the second coil will have mutual induction, and power will be supplied to the electrical equipment through the current conversion circuit.

[0006] Furthermore, there are multiple first coils.

[0007] Furthermore, a groove is provided at the bottom of the flexible mattress, and the first coil is wound around the outside of the groove.

[0008] Furthermore, the groove is cylindrical or conical.

[0009] Furthermore, there are multiple grooves with different shapes.

[0010] The present invention also provides a bed frame, which is used in conjunction with any of the above-mentioned flexible mattresses, wherein a second coil and a drive circuit are arranged inside the bed frame; the input end of the drive circuit is used to connect to an external power supply, and the output end of the drive circuit is connected to the second coil;

[0011] When a flexible mattress is placed on the bed frame, the second coil generates an alternating magnetic field which interacts with the first coil to supply power to the electrical equipment.

[0012] Furthermore, when there are multiple second coils and a flexible mattress with multiple first coils is placed on the bed frame, the number of the second coils is the same as the number of the first coils, and the second coils correspond to the first coils one by one to generate mutual induction to supply power to the electrical equipment.

[0013] Furthermore, a protrusion is provided on the bed frame, and the second coil is arranged inside the protrusion. When a flexible mattress with a groove at the bottom is placed on the bed frame, the protrusion is inserted into the groove.

[0014] Furthermore, the protrusion and the groove are connected by a mortise and tenon structure.

[0015] The present invention also provides an electric bed, comprising any one of the above-mentioned flexible mattresses and any one of the above-mentioned bed frames, wherein the flexible mattress is arranged on the bed frame.

[0016] The beneficial effects of the flexible mattress, bed frame and electric bed of the present invention are as follows: by arranging a first coil in the flexible mattress and a second coil in the bed frame, when the flexible mattress is placed on the bed frame, mutual induction occurs between the first coil and the second coil to supply power to the electrical equipment in the flexible mattress, thereby eliminating the need to set wires on the flexible mattress to connect to an external power source, and the flexible mattress does not need to be connected to an external power source, which can reduce pressure on people and enhance the experience; grooves and protrusions are provided on the flexible mattress and the bed frame, and the positions of the first coil and the second coil can be conveniently aligned through the cooperation of the grooves and the protrusions, and the flexible mattress will not be displaced when the bed frame rises and falls; and different grooves and protrusions are selected at different locations, so that inversion errors can be avoided when the flexible mattress is placed on the bed frame, and when there are multiple first coils and multiple second coils, the positions can be aligned one by one to form a transmission coil pair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the flexible mattress of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a bed frame of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the electric bed of the present invention.

[0020] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0024] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] Reference Figure 1 , Figure 1 This is a schematic diagram of the front structure of a flexible mattress. Figure 1 The lower half of the middle flexible mattress is a cross-sectional view, a flexible mattress, the flexible mattress 1 is provided with an electrical device inside, the flexible mattress 1 is provided with a first coil 11, a current conversion circuit electrically connected to the first coil 11, and the current conversion circuit is electrically connected to the electrical device;

[0026] When the flexible mattress 1 is placed on the bed frame 2 provided with the second coil 21, if the second coil 21 generates an alternating magnetic field, the first coil 11 and the second coil 21 will have mutual induction, and power will be supplied to the electrical equipment through the converter circuit.

[0027] In this embodiment, most of the electrical devices in the existing flexible mattress 1 are vibration massagers, heaters, sensors, etc. By providing a first coil 11 inside the flexible mattress 1, the first coil 11 is electrically connected to the current conversion circuit, and the current conversion circuit is electrically connected to the electrical devices. When the flexible mattress 1 is placed on the bed frame 2 provided with the second coil 21, the first coil 11 can have mutual induction with the second coil 21. The mutual induction is that after the second coil 21 is connected to an external power supply, a magnetic field will be generated around the second coil 21 due to the magnetic effect of the current. When the first coil 11 in the flexible mattress 1 is within the magnetic field generated by the second coil 21, since the current flowing through the second coil 21 is alternating current, that is, the direction of the current is constantly changing alternately, the magnetic field generated by the second coil 21 is constantly changing direction, and an induced current is generated on the first coil 11 through electromagnetic induction. The current conversion circuit can be a common current conversion circuit. The circuit has the functions of rectification and filtering, and provides a stable power supply voltage to the electrical equipment. The induced current generated by the first coil 11 is rectified by the converter circuit and then guided to the electrical equipment, so as to realize wireless power supply to the electrical equipment. Therefore, there is no need to lead out wires on the flexible mattress 1 to connect to the external power supply, and there is no problem that the flexible mattress 1 will pull the wires and damage the wires when it rises or falls with the bed frame 2 of the electric bed. At the same time, the flexible mattress 1 does not need to be connected to the outside world with wires, which will reduce the pressure on the user caused by the flexible mattress 1 being connected with wires, and enhance the user experience. In the process of mutual induction between the first coil 11 and the second coil 21, the control signal can be transmitted by means of amplitude modulation, frequency modulation, etc. The converter circuit rectifies the induced alternating current generated by the first coil 11 into direct current, so as to facilitate the transmission of control signals to the electrical equipment through the mutual induction between the first coil 11 and the second coil 21.

[0028] Furthermore, in the present embodiment, there are multiple first coils 11, and the number of first coils 11 can be determined according to the electrical equipment in the flexible mattress 1. For example, if there are a vibration massager, a heater and a sensor in the flexible mattress 1, then the number of first coils 11 can be three. A first coil 11 is set for each electrical equipment, which can disperse the wireless power supply and further disperse the transmission control signal. Compared with all electrical equipment sharing one first coil 11, it is simpler and more reliable, and can more effectively perform wireless power supply to the electrical equipment in the flexible mattress 1.

[0029] Furthermore, in this embodiment, a groove 12 is provided at the bottom of the flexible mattress 1, and the first coil 11 is wound around the outside of the groove 12. The flexible mattress 1 is placed on a bed frame 2 provided with a protrusion 22, and the protrusion 22 is inserted into the groove 12. Since the magnetic field generated by the second coil 21 is smaller as the distance from the second coil 21 increases, the magnetic field generated by the second coil 21 is negligible beyond a certain distance. Therefore, the greater the distance between the two, the greater the loss of wireless power transmitted, and the lower the energy transmission efficiency. Therefore, generally, the first coil 11 and the second coil 21 need to be aligned so that the first coil 11 is located relatively close to the second coil 21. The flexible mattress 1 is provided with a groove 12. When the flexible mattress 1 is set on the bed frame 2 provided with a protrusion 22, since the second coil 21 is provided in the protrusion 22, the protrusion 22 is inserted into the groove 12 to facilitate the alignment of the first coil 11 and the second coil 21, so that the first coil 11 is located within a relatively close range to the second coil 21, so that when the first coil 11 and the second coil 21 have mutual induction, the loss of wireless power can be reduced and the transmission efficiency can be improved. At the same time, the insertion of the protrusion 22 into the groove 12 can prevent the flexible mattress 1 from being displaced when following the bed frame 2 to rise or fall, and play a role in fixing the position of the flexible mattress 1. In this embodiment, the groove 12 can be cylindrical or conical. In another embodiment, in addition to being wound around the outside of the groove 12, the position of the first coil 11 can also be set above the groove 12, as long as the position of the first coil 11 is within a certain range from the second coil 21. In another embodiment, the flexible mattress 1 may also be provided with a protrusion, and the first coil 11 is arranged in the protrusion. When the flexible mattress 1 is arranged on a bed frame provided with a groove, the first coil 11 and the second coil 21 may be aligned by inserting the protrusion into the groove.

[0030] Furthermore, in the present embodiment, there are multiple grooves 12 and their shapes are different. The grooves 12 may be cylindrical or conical. The shapes may be different in size. For example, when the grooves 12 are of the same shape, such as cylindrical shapes, cylindrical shapes with different radii or different heights may be selected. When the flexible mattress 1 is arranged on a bed frame 2 provided with multiple protrusions 22, since the shape of each groove 12 is different, the protrusions 22 cooperate with the grooves 12, so that an inversion error may be avoided when the flexible mattress 1 is placed on the bed frame 2. Moreover, when there are multiple first coils 11 in the flexible mattress 1, the multiple first coils 11 may be correspondingly wound around the outer positions of the multiple grooves 12, and the second coils 21 may be arranged in the protrusions 22 inserted into the corresponding grooves 12. When the flexible mattress 1 is placed on the bed frame 2, no inversion error may occur, which facilitates the one-to-one correspondence between the multiple first coils 11 and the multiple second coils 21 to form a transmission coil pair.

[0031] Reference Figure 2 , Figure 2This is a schematic diagram of the front structure of the bed frame. Figure 2 The upper part of the middle bed frame is a cross-sectional view, a bed frame used in conjunction with any of the above-mentioned flexible mattresses 1, the bed frame 2 is provided with a second coil 21 and a drive circuit; the input end of the drive circuit is used to connect to an external power supply, and the output end of the drive circuit is electrically connected to the second coil 21;

[0032] When the flexible mattress 1 is placed on the bed frame 2, if the external AC power supply supplies power to the second coil 21 through the driving circuit, the second coil 21 generates an alternating magnetic field to interact with the first coil 11 to supply power to the electrical equipment.

[0033] In this embodiment, a second coil 21 and a driving circuit are provided inside the bed frame 2. The driving circuit may be a common driving circuit, which can enable the second coil 21 to generate an alternating magnetic field, such as having an inversion effect. When an external power supply inputs an alternating or direct current, the driving circuit inverts the input current into an alternating current of a certain frequency, which on the one hand enhances the mutual inductance, and on the other hand, can transmit a control signal through the mutual inductance between the first coil 11 and the second coil 21. Therefore, when the flexible mattress 1 with the first coil 11 inside is placed on the bed frame 2, the external power supply supplies power to the second coil 21 through the driving circuit, and the second coil 21 generates an alternating magnetic field and has mutual induction with the first coil 11, thereby supplying power to the electrical equipment in the flexible mattress 1, so that the flexible mattress 1 does not need to lead out wires to connect to the external power supply, and there is no problem that the flexible mattress 1 will pull the wires and damage the wires when it rises or falls with the bed frame 2 of the electric bed. At the same time, the flexible mattress 1 does not need to be connected to the outside world with wires, which can reduce the pressure on the user caused by the flexible mattress 1 being connected to the wires and enhance the user experience. In the process of mutual induction between the first coil 11 and the second coil 21, control signals can be transmitted through amplitude modulation, frequency modulation and other means.

[0034] Furthermore, in the present embodiment, there are multiple second coils 21. When a flexible mattress 1 having multiple first coils 11 is placed on the bed frame 2, the number of the second coils 21 is the same as that of the first coils 11. The second coils 21 correspond one-to-one with the first coils 11 to generate mutual induction to supply power to the electrical equipment. The number of the second coils 21 is the same as that of the first coils 11 and they correspond one-to-one to form a transmission coil pair. A transmission coil pair is set for each electrical equipment. Through the mutual induction of the transmission coil pair, wireless power supply can be dispersed, and then the transmission control signal can be dispersed. This is simpler and more reliable than having one transmission coil pair for all electrical equipment, and can more effectively perform wireless power supply to the electrical equipment in the flexible mattress 1.

[0035] Further, in this embodiment, a protrusion 22 is provided on the bed frame 2, and the second coil 21 is arranged inside the protrusion 22. When a flexible mattress 1 having a groove 12 at the bottom is placed on the bed frame 2, the protrusion 22 is inserted into the groove 12, and the second coil 21 is arranged inside the protrusion 22 to limit the position of the second coil 21. The protrusion 22 is inserted into the groove 12 to facilitate the alignment of the second coil 21 with the first coil 11, so that the first coil 11 is located at a position closer to the second coil 21, so that when the second coil 21 and the first coil 11 have mutual induction, the loss of wireless power can be reduced, the transmission efficiency can be improved, and the power supply for the electrical equipment in the flexible mattress 1 can be provided. At the same time, the protrusion 22 is inserted into the groove 12 to prevent the flexible mattress 1 from being displaced when following the bed frame 2 to rise or fall, and plays a role in fixing the position of the flexible mattress 1. In this embodiment, the protrusion 22 can be cylindrical or conical, as long as its shape can be inserted into the groove 12, and the number of the protrusions 22 is the same as the number of the grooves 12. In another embodiment, the bed frame 2 may also be provided with a groove, and the second coil 21 is wound around the outside of the groove. When a flexible mattress with a protrusion on the bottom is placed on the bed frame 2, the first coil 11 and the second coil 21 may be aligned by inserting the protrusion into the groove.

[0036] Furthermore, in this embodiment, the protrusion 22 is connected to the groove 12 by a mortise and tenon structure, and the size of the protrusion 22 is exactly the same as that of the groove 12. When the protrusion 22 is inserted into the groove 12, the flexible mattress 1 can be better fixed on the bed frame 2.

[0037] Reference Figure 3 , an electric bed, comprising a flexible mattress 1 of any one of the above items and a bed frame 2 of any one of the above items, wherein the flexible mattress 1 is arranged on the bed frame 2.

[0038] In this embodiment, the first coil 11 in the flexible mattress 1 and the second coil 21 in the bed frame 2 generate mutual induction to power the electrical equipment in the flexible mattress 1, so that there is no need to lead out wires on the flexible mattress 1 to connect to an external power source, and there is no possibility of pulling and damaging the wires when the flexible mattress 1 rises or falls with the bed frame 2 of the electric bed. At the same time, the flexible mattress 1 does not need to be connected to the outside world with wires, which can reduce the pressure on the user caused by the flexible mattress 1 being connected to the wires and enhance the user experience. The number of the first coils 11 can be adjusted according to the electrical equipment in the flexible mattress 1. The number of the second coils 21 is the same as the number of the first coils 11 and they correspond to each other to form a transmission coil pair. Through the mutual inductance of the transmission coil pair, the electrical equipment in the flexible mattress 1 is powered more effectively. By providing a groove 12 at the bottom of the flexible mattress 1 and a protrusion 22 matching the groove 12 on the bed frame 2, when the flexible mattress 1 is placed on the bed frame 2, the protrusion 22 is inserted into the groove 12 to facilitate the alignment of the first coil 11 and the second coil 21, so that the wireless power can be reduced when the first coil 11 and the second coil 21 have mutual inductance. The power consumption of the flexible mattress 1 is reduced, the transmission efficiency is improved, and the power is supplied to the electrical equipment in the flexible mattress 1. In addition, a plurality of grooves 12 of different shapes can be provided on the flexible mattress 1, and a corresponding number of protrusions 22 can be provided on the bed frame 2. On the one hand, the plurality of grooves 12 of different shapes and the protrusions 22 can avoid the inversion error when the flexible mattress 1 is placed on the bed frame 2. The protrusions 22 and the grooves 12 can be connected by a mortise and tenon structure, that is, the size of the protrusions 22 and the grooves 12 are exactly the same. When the protrusions 22 are inserted into the grooves 12, the flexible mattress 1 can be better fixed on the bed frame 2. On the other hand, the plurality of first-line The coil 11 can be arranged correspondingly above the plurality of grooves 12, and the second coil 21 is arranged in the protrusion 22 inserted into the corresponding groove 12. Since the flexible mattress 1 is placed on the bed frame 2 without inversion error, it is convenient for the plurality of first coils 11 and the plurality of second coils 21 to form a transmission coil pair corresponding to each other. A transmission coil pair is arranged for each electrical device, which can disperse wireless power supply, and further disperse transmission control signals. It is simpler and more reliable than all electrical devices having one first coil 11, and can more effectively wirelessly power the electrical devices in the flexible mattress 1. In another embodiment, a protrusion can be provided at the bottom of the flexible mattress 1, and a groove matching the protrusion of the flexible mattress can be provided on the bed frame 2. When the flexible mattress 1 is placed on the bed frame 2, the protrusion is inserted into the groove to facilitate the alignment of the first coil 11 and the second coil 21.

[0039] The beneficial effects of the flexible mattress, bed frame and electric bed of the present invention are as follows: by arranging a first coil in the flexible mattress and a second coil in the bed frame, when the flexible mattress is placed on the bed frame, mutual induction occurs between the first coil and the second coil to supply power to the electrical equipment in the flexible mattress, thereby eliminating the need to set wires on the flexible mattress to connect to an external power source, and the flexible mattress does not need to be connected to an external power source, which can reduce pressure on people and enhance the experience; grooves and protrusions are provided on the flexible mattress and the bed frame, and the positions of the first coil and the second coil can be conveniently aligned through the cooperation of the grooves and the protrusions, and the flexible mattress will not be displaced when the bed frame rises and falls; and different grooves and protrusions are selected at different locations, so that inversion errors can be avoided when the flexible mattress is placed on the bed frame, and when there are multiple first coils and multiple second coils, the positions can be aligned one by one to form a transmission coil pair.

[0040] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electric bed, characterized in that: It comprises a flexible mattress and a bed frame, wherein the flexible mattress is provided with electrical equipment inside, the bed frame is used in conjunction with the flexible mattress, and the flexible mattress is arranged on the bed frame; The flexible mattress is provided with a first coil and a current conversion circuit electrically connected to the first coil; the current conversion circuit is electrically connected to the electrical equipment; the bed frame is provided with a second coil and a drive circuit; the input end of the drive circuit is used to connect to an external AC power supply, and the output end of the drive circuit is electrically connected to the second coil; When the flexible mattress is placed on a bed frame provided with a second coil, if the second coil generates an alternating magnetic field, the first coil and the second coil are mutually inductively acted upon, and power is supplied to the electrical equipment through the converter circuit; when the flexible mattress is placed on the bed frame, if the external AC power supply supplies power to the second coil through the drive circuit, the second coil generates an alternating magnetic field and is mutually inductively acted upon by the first coil, and power is supplied to the electrical equipment; The bottom of the flexible mattress is provided with a groove, the first coil is wound around the outside of the groove, the number of the grooves is multiple and the shapes are different; the bed frame is provided with a protrusion, the second coil is arranged inside the protrusion, and when the flexible mattress with a groove at the bottom is placed on the bed frame, the protrusion is inserted into the groove; The number of the first coils is plural.

2. The electric bed according to claim 1, characterized in that: The groove is cylindrical or conical.

3. According to the electric bed of claim 1, the number of the second coils is multiple, and when a flexible mattress provided with multiple first coils is placed on the bed frame, the number of the second coils is the same as that of the first coils, and the second coils correspond to the first coils one by one to generate mutual induction to supply power to the electrical equipment.

4. The electric bed according to claim 1, characterized in that: The protrusion and the groove are connected via a mortise and tenon structure.

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