Electric blanket capable of realizing automatic control

Abstract

The utility model belongs to the technical field of electric blankets, and discloses an electric blanket capable of realizing automatic control. In the electric blanket, a main body comprises a heating wire, a thermistor layer and a copper wire; in the control part, a plurality of integrated operational amplifiers and a plurality of silicon controlled rectifiers are electrically connected with the main body and are connected into an MCU (Microprogrammed Control Unit) main chip, and a signal receiver is in communication connection with the MCU main chip; the sensing part comprises a storage bin, a millimeter wave radar, a signal transmitter and a mounting mechanism; the millimeter-wave radar and the signal transmitter are both placed in the storage bin, the millimeter-wave radar is in communication connection with the signal transmitter, and the signal transmitter is in wireless communication connection with the signal receiver; the mounting mechanism comprises a first mounting part and a second mounting part, and the first mounting part is movably matched with the second mounting part, so that the first mounting part has the degree of freedom of rotating around the second mounting part; and the first mounting piece is fixedly connected with the storage bin. The safety of the electric blanket in the using process can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric blankets, in particular to an electric blanket capable of realizing automatic control. Background Art

[0002] An electric blanket is a commonly used heating equipment, which can significantly improve the sleep quality of users in cold environments.

[0003] The existing electric blankets still adopt the traditional button control method, that is, the conduction and disconnection of the heat conduction circuit in the electric blanket are realized through the corresponding buttons, so as to realize the opening and closing of the electric blanket.

[0004] However, in actual applications, safety accidents often occur due to the electric blanket not being turned off when people leave. Especially when the electric blanket is locally folded, since the abnormal temperature rise in the folded area cannot be known in time, safety accidents are more likely to occur in such cases. This also leads to the electric blanket not being recommended for use in places such as schools. Although some electric blankets are provided with a timer in the control structure to realize the timed shutdown of the electric blanket, in actual use, the timed time is generally long, and the above possible safety accidents cannot be effectively avoided. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an electric blanket capable of realizing automatic control, so as to improve the technical problems that the existing electric blankets are prone to safety accidents due to the limitation of the switch control method and have limitations in application places.

[0006] To achieve the above purpose, the utility model proposes the following technical solutions:

[0007] An electric blanket capable of realizing automatic control, comprising: a main body, and a control part and a sensing part cooperating with the main body;

[0008] The main body successively comprises: a heating wire, a thermistor layer and a copper wire;

[0009] The control part comprises: a signal receiver, an MCU main chip, a first integrated operational amplifier, a second integrated operational amplifier, a first bidirectional thyristor and a second bidirectional thyristor; the signal receiver is communicatively connected with the MCU main chip, the first integrated operational amplifier is electrically connected to the heating wire and then connected to the MCU main chip, the second integrated operational amplifier is electrically connected to the copper wire and then connected to the MCU main chip, the first bidirectional thyristor is communicatively connected with the MCU main chip and electrically connected to the heating wire, and the second bidirectional thyristor is communicatively connected with the MCU main chip and electrically connected to the copper wire;

[0010] The induction part includes: a storage bin, a millimeter-wave radar, a signal transmitter, and a mounting mechanism; the millimeter-wave radar and the signal transmitter are both placed in the storage bin, the millimeter-wave radar is communicatively connected to the signal transmitter, and the signal transmitter is wirelessly communicatively connected to the signal receiver; the mounting mechanism includes a first mounting member and a second mounting member, and the first mounting member and the second mounting member are movably matched so that the first mounting member has a degree of freedom to rotate around the second mounting member; the first mounting member is also fixedly connected to the storage bin.

[0011] Further, the signal receiver is an infrared receiver, and the signal transmitter is an infrared transmitter.

[0012] Further, the signal receiver is a Bluetooth signal receiver, and the signal transmitter is a Bluetooth signal transmitter.

[0013] Further, the detection angle range of the millimeter-wave radar is: not less than 90 degrees, and the detection length range is: not exceeding 6 m.

[0014] Further, it includes a plurality of signal lights; the plurality of signal lights are all connected to the main MCU chip.

[0015] Further, the first triac and the second triac are connected in series, the first free end of the first triac is electrically connected to the copper wire and the heating wire at the same time, the first free end of the second triac is grounded, and the second free end of the first triac and the second free end of the second triac are connected to the main MCU chip through the same pin.

[0016] Further, the first mounting member includes a free end, and the free end of the first mounting member is a block structure; the control part includes a housing, and a card slot is provided in the housing; the free end of the first mounting member is snap-fitted with the card slot.

[0017] Further, the first mounting member includes a free surface, and an adhesive layer is attached to the free surface.

[0018] Further, one end of the first mounting member is a spherical structure, and the first of the second mounting member is a concave arc structure, and the spherical structure and the concave arc structure are movably matched with each other.

[0019] Further, a buffer layer is coated on the spherical surface of the spherical structure and the concave surface of the concave arc structure; wherein, the buffer layer can undergo elastic deformation. Beneficial effects:

[0020] As can be seen from the above, the present technical solution provides a new switch control method for an electric blanket to realize the automatic control of the electric blanket and thus change the above technical defects.

[0021] Specifically, the electric blanket includes: a main body, a control unit and a sensing unit that cooperate with the main body. Among them, the main body sequentially includes: a heating wire, a thermistor layer and a copper wire. The control unit includes: a signal receiver, an MCU main chip, a first integrated operational amplifier, a second integrated operational amplifier, a first triac and a second triac; the signal receiver is communicatively connected to the MCU main chip, the first integrated operational amplifier is electrically connected to the heating wire and then connected to the MCU main chip, the second integrated operational amplifier is electrically connected to the copper wire and then connected to the MCU main chip, the first triac is communicatively connected to the MCU main chip and electrically connected to the heating wire, and the second triac is communicatively connected to the MCU main chip and electrically connected to the copper wire. The sensing unit includes: a storage bin, a millimeter-wave radar, a signal transmitter and a mounting mechanism; the millimeter-wave radar and the signal transmitter are both placed in the storage bin, the millimeter-wave radar is communicatively connected to the signal transmitter, and the signal transmitter is wirelessly communicatively connected to the signal receiver; the mounting mechanism includes a first mounting member and a second mounting member, and the first mounting member and the second mounting member are movably matched so that the first mounting member has the freedom to rotate around the second mounting member; the first mounting member is also fixedly connected to the storage bin.

[0022] During the control process, the millimeter-wave radar uses electromagnetic waves to detect and sense whether there is a person on the electric blanket, and converts the sensed information into a high or low level signal or a pulse signal and then transmits it to the signal transmitter. Subsequently, the signal receiver transmits the received signal to the MCU main chip and controls the main body to achieve automatic switching control of the electric blanket associated with whether there is a person using it. At the same time, in the mounting mechanism of the sensing unit, it is provided that it includes a first mounting member and a second mounting member, and the first mounting member and the second mounting member are movably matched so that the first mounting member has the freedom to rotate around the second mounting member; the first mounting member is also fixedly connected to the storage bin; thereby, the detection area of the millimeter-wave radar can be adjusted so that it can always accurately detect whether there is a person on the electric blanket. At this time, the electric blanket based on this technical solution can effectively ensure safety during use and can also be safely used in places such as schools.

[0023] It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be regarded as part of the inventive subject matter of the present disclosure as long as such concepts do not contradict each other.

[0024] The foregoing and other aspects, embodiments and features of the teachings of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as features and / or beneficial effects of exemplary embodiments, will be apparent in the following description or will be learned through practice of specific embodiments in accordance with the teachings of the present invention. Brief Description of the Drawings

[0025] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in each figure may be denoted by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present utility model will be described by way of example and with reference to the drawings, wherein:

[0026] Figure 1 is a circuit structure diagram of the electric blanket capable of realizing automatic control according to this embodiment. Detailed Description of the Embodiments

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings of the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model. Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which the present utility model pertains.

[0028] The "first", "second" and similar terms used in the specification and claims of the patent application of the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "a", "an" or "the" and similar terms do not denote a limitation of quantity, but mean that there is at least one. The terms such as "comprising" or "including" are intended to indicate that the elements or items appearing before "comprising" or "including" cover the features, wholes, steps, operations, elements and / or components listed after "comprising" or "including", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or their combinations. The terms such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] Existing electric blankets still adopt the traditional button control method. In actual applications, electric blankets using this type of control method often cause safety accidents due to the fact that the electric blanket is not turned off when people leave. Especially when the electric blanket is locally folded, since the abnormal temperature rise in the folded area cannot be timely detected and controlled, safety accidents are more likely to occur in such cases. This also leads to the fact that electric blankets are not recommended for use in places such as schools. Based on this, this embodiment aims to provide an electric blanket that can achieve automatic control to improve the above technical defects.

[0030] The following further specifically introduces the electric blanket capable of achieving automatic control disclosed in the present utility model in conjunction with the embodiments shown in the accompanying drawings.

[0031] As Figure 1 shown, the electric blanket is composed of a main body, a control part and a sensing part. Among them, both the control part and the sensing part are cooperated with the main body to realize the on-off control of the electric blanket.

[0032] Specifically, the main body sequentially includes: a heating wire, a thermistor layer and a copper wire.

[0033] The control part includes: a signal receiver, an MCU main chip, a first integrated operational amplifier, a second integrated operational amplifier, a first bidirectional thyristor and a second bidirectional thyristor; the signal receiver is communicatively connected to the MCU main chip, the first integrated operational amplifier is electrically connected to the heating wire and then connected to the MCU main chip, the second integrated operational amplifier is electrically connected to the copper wire and then connected to the MCU main chip, the first bidirectional thyristor is communicatively connected to the MCU main chip and electrically connected to the heating wire, and the second bidirectional thyristor is communicatively connected to the MCU main chip and electrically connected to the copper wire.

[0034] The sensing part includes: a storage bin, a millimeter-wave radar, a signal transmitter and a mounting mechanism; both the millimeter-wave radar and the signal transmitter are placed in the storage bin, the millimeter-wave radar is communicatively connected to the signal transmitter, and the signal transmitter is wirelessly communicatively connected to the signal receiver; the mounting mechanism includes a first mounting member and a second mounting member, and the first mounting member and the second mounting member are movably cooperated so that the first mounting member has the freedom to rotate around the second mounting member; the first mounting member is also fixedly connected to the storage bin

[0035] In specific implementation, the millimeter-wave radar uses electromagnetic waves to detect and sense whether there are people on the main body, and converts the sensed information into high and low level signals or pulse signals and then transmits them to the signal transmitter. Subsequently, the signal receiver transmits the received signal to the main MCU chip and controls the main body to achieve automatic switch control of the electric blanket associated with whether there are people using it. Specifically, during the temperature adjustment process, the first integrated operational amplifier obtains the current temperature of the heating wire, compares it with the corresponding reference temperature, and then inputs it to the main MCU chip. Furthermore, the temperature of the heating wire is adjusted through the first triac. The second integrated operational amplifier obtains the monitored temperature of the NTC, compares it with the corresponding reference temperature, and then inputs it to the main MCU chip, thereby achieving closed-loop temperature adjustment control.

[0036] Specifically, the first triac and the second triac are connected in series. The first free end of the first triac is electrically connected to both the copper wire and the heating wire. The first free end of the second triac is grounded. The second free end of the first triac and the second free end of the second triac are connected to the main MCU chip through the same pin.

[0037] Meanwhile, in the installation mechanism of the sensing part, it is set to include the first mounting part and the second mounting part. The first mounting part and the second mounting part are movably matched so that the first mounting part has the freedom to rotate around the second mounting part. The first mounting part is also fixedly connected to the storage bin. Furthermore, the detection area of the millimeter-wave radar can be adjusted, so that it can always accurately detect whether there are people on the electric blanket. At this time, the electric blanket based on this embodiment can effectively ensure safety during use and can be safely used even in places such as schools.

[0038] In this embodiment, as a specific implementation manner, one end of the first mounting part is set as a spherical structure, and the first of the second mounting part is set as a concave arc structure. The spherical structure and the concave arc structure are movably matched with each other. Preferably, in order to fix the angle after the angle adjustment, a buffer layer is coated on the spherical surface of the spherical structure and the concave surface of the concave arc structure; wherein, the buffer layer can undergo elastic deformation. At this time, the fixed angle can be achieved through the extrusion deformation of the buffer layer, and no additional fixing structure needs to be installed.

[0039] As a specific implementation manner, the signal receiver is an infrared signal receiver, and the signal transmitter is an infrared transmitter.

[0040] As another specific implementation manner, the signal receiver is a Bluetooth signal receiver, and the signal transmitter is a Bluetooth signal transmitter.

[0041] To ensure that the person on the electric blanket can be accurately detected to avoid accidental turning on or off, from the perspective of millimeter-wave radar, it is specified that the detection angle range of the selected millimeter-wave radar is not less than 90 degrees, and the detection length range is not more than 6 m. At this time, the detection angle range and the detection length range correspond to the size of the beds on the market, and thus it can be ensured that people are always effectively detected.

[0042] As a specific implementation manner, the induction part and the control part can be integrated into an integral structure. Specifically, the first mounting member includes a spare end, and the spare end of the first mounting member is a block structure; the control part includes a housing, and a card slot is provided in the housing; the spare end of the first mounting member is in snap-fit with the card slot. At this time, the induction part can be fixed in the housing of the control part through this snap-fit.

[0043] As another specific implementation manner, the induction part and the control part can also be independently arranged. At this time, the first mounting member includes a spare surface, and an adhesive layer is attached to the spare surface. The induction part can be fixed at the target position through the adhesive layer. During specific implementation, generally the induction part is fixed on the head of the bed.

[0044] To facilitate an intuitive view of whether the on / off control of the electric blanket is achieved, it is provided that the control part further includes a plurality of signal lights, and the signal lights are all connected to the MCU main chip. During specific implementation, if the signal lights are lit, it indicates that the electric blanket is in the on state; on the contrary, if the signal lights are extinguished, it indicates that the electric blanket is in the off state.

[0045] At the same time, a separate push-button switch is also provided on the induction part, and a push-button switch is still reserved on the control part. At this time, when the user is at home for a long time, the user can independently choose whether to use this type of automatic control method.

[0046] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Those with ordinary knowledge in the technical field to which the present utility model pertains can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to what is defined by the claims.

Claims

1. An electric blanket capable of realizing automatic control, characterized in that, Comprising: A main body, and a control part and a sensing part that cooperate with the main body; The main body sequentially comprises: a heating wire, a thermistor layer, and a copper wire; The control part comprises: a signal receiver, an MCU main chip, a first integrated operational amplifier, a second integrated operational amplifier, a first triac, and a second triac; the signal receiver is communicatively connected to the MCU main chip, the first integrated operational amplifier is electrically connected to the heating wire and then connected to the MCU main chip, the second integrated operational amplifier is electrically connected to the copper wire and then connected to the MCU main chip, the first triac is communicatively connected to the MCU main chip and electrically connected to the heating wire, and the second triac is communicatively connected to the MCU main chip and electrically connected to the copper wire; The sensing part comprises: a storage bin, a millimeter-wave radar, a signal transmitter, and a mounting mechanism; the millimeter-wave radar and the signal transmitter are both placed in the storage bin, the millimeter-wave radar is communicatively connected to the signal transmitter, and the signal transmitter is wirelessly communicatively connected to the signal receiver; the mounting mechanism comprises a first mounting member and a second mounting member, and the first mounting member and the second mounting member are movably matched so that the first mounting member has a degree of freedom of rotating around the second mounting member; the first mounting member is also fixedly connected to the storage bin.

2. The electric blanket capable of realizing automatic control according to claim 1, wherein The signal receiver is an infrared receiver, and the signal transmitter is an infrared transmitter.

3. The electric blanket capable of realizing automatic control according to claim 1, wherein The signal receiver is a Bluetooth signal receiver, and the signal transmitter is a Bluetooth signal transmitter.

4. The electric blanket capable of realizing automatic control according to claim 1, characterized in that, The detection angle range of the millimeter-wave radar is: not less than 90 degrees, and the detection length range is: not exceeding 6 m.

5. The electric blanket capable of realizing automatic control according to claim 1, characterized in that, Comprising a plurality of signal lamps; the plurality of signal lamps are all connected to the MCU main chip.

6. The electric blanket capable of realizing automatic control according to claim 1, characterized in that, The first triac and the second triac are connected in series, the first free end of the first triac is electrically connected to the copper wire and the heating wire simultaneously, the first free end of the second triac is grounded, and the second free end of the first triac and the second free end of the second triac are connected to the MCU main chip through the same pin.

7. The electric blanket capable of realizing automatic control according to claim 1, wherein The first mounting member comprises a free end, and the free end of the first mounting member is a block structure; the control part comprises a housing, and a card slot is arranged in the housing; the free end of the first mounting member is in snap-fit with the card slot.

8. The electric blanket capable of realizing automatic control according to claim 1, characterized in that, The first mounting member comprises a free surface, and an adhesion layer is attached to the free surface.

9. The electric blanket capable of realizing automatic control according to claim 1, wherein One end of the first mounting member is a spherical structure, and the first of the second mounting member is a concave arc structure, and the spherical structure and the concave arc structure are movably matched with each other.

10. The electric blanket capable of automatic control according to claim 9, wherein A buffer layer is coated on the spherical surface of the spherical structure and the concave surface of the concave arc structure; wherein, the buffer layer can undergo elastic deformation.

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