Row massage cushion for improving massage experience

Abstract

The invention relates to a row massage cushion for improving massage experience, all massage cushions are connected in parallel through a DC power line, and each massage cushion comprises a buck-boost circuit, a drive circuit and a massage head; the input end of the buck-boost circuit is connected with a power line, and the output end of the buck-boost circuit is connected with the input end of the driving circuit; a motor driven by the driving circuit is connected with the massage head; the buck-boost circuit is used for judging whether the input voltage is a preset value, if the input voltage is larger than the preset value, the input voltage is reduced, and if the input voltage is smaller than the preset value, the input voltage is boosted; and the driving circuit is used for indirectly controlling the massage head by controlling the rotating speed of the motor.

Description

Technical Field

[0001] The invention relates to a row of massage cushions for improving massage experience, belonging to the technical field of shared massage. Background Art

[0002] In the theater hall, the movie seats are placed in a row. The massage pad is installed by inserting the massage pad into the existing theater seats. The massage pad is installed in a row like the movie seats. For fire safety, there must be no power supply that does not meet safety regulations next to the movie seats. The power supply of the massage pad can only use the conventional 12V / 24V switching power supply on the market. The switching power supply has the characteristics of high power and small size. It uses the mains 220VAC input, so the switching power supply can only be installed far away from the massage pad. The 12V / 24V output of the switching power supply is transmitted to the massage pad through a long DC line. Usually, a switching power supply needs to carry 10 devices or more. The DC power line is too long, and there is a large loss on the line, and there is a voltage drop, resulting in different voltages input to each massage pad. The longer the line, the greater the voltage difference. The speed of the motor of the core component of the massage pad depends on the input voltage and software PWM control. In the case of large differences in input voltage, the use of software PWM regulation is useless. In the case of large differences in motor speed, the final manifestation is that the massage technique cannot be executed according to the preset settings, affecting the massage experience. Summary of the invention

[0003] In order to solve the above problems in the prior art, the present invention proposes a row of massage cushions that improve the massage experience.

[0004] The technical solution of the present invention is as follows:

[0005] The present invention provides a row of massage pads for improving massage experience, wherein all massage pads are connected in parallel via a DC power line, and each massage pad comprises a step-up and step-down circuit, a drive circuit, and a massage head;

[0006] The input end of the buck-boost circuit is connected to the power line, and the output end of the buck-boost circuit is connected to the input end of the drive circuit;

[0007] The motor driven by the driving circuit is connected to the massage head;

[0008] The step-up / step-down circuit is used to determine whether the input voltage is a preset value, and if it is greater than the preset value, the input voltage is stepped down, and if it is less than the preset value, the input voltage is stepped up;

[0009] The driving circuit is used to indirectly control the massage head by controlling the rotation speed of the motor.

[0010] As a preferred embodiment of the present invention, the buck-boost circuit includes a buck-boost control IC, a power inductor, a feedback resistor and four switches;

[0011] The input power supply is connected to one end of the first switch, and the other end of the first switch is respectively connected to one end of the second switch and one end of the power inductor;

[0012] The other end of the power inductor is connected to one end of the third switch and one end of the fourth switch respectively;

[0013] The other end of the fourth switch is respectively connected to the other end of the second switch and one end of the feedback resistor;

[0014] The other end of the third switch is connected to one end of the feedback resistor, and the other end of the feedback resistor is connected to the input end of the driving circuit;

[0015] The buck-boost control IC is respectively connected to the first switch, the second switch, the third switch, the fourth switch and the feedback resistor.

[0016] As a preferred embodiment of the present invention, the buck-boost circuit further includes filter capacitors, which are respectively arranged at the input end and the output end of the circuit.

[0017] As a preferred embodiment of the present invention, the driving circuit includes a driving control IC, an H-bridge driving circuit and a current detection resistor;

[0018] The output end of the buck-boost circuit is connected to the input end of the H-bridge driving circuit, the output end of the H-bridge driving circuit is connected to the input end of the current detection resistor, and the output end of the current detection resistor is grounded.

[0019] As a preferred embodiment of the present invention, the H-bridge driving circuit includes a driving control IC, four switches and a DC motor;

[0020] The power supply is connected to one end of the fifth switch and the seventh switch respectively, the other end of the fifth switch is connected to one end of the DC motor and one end of the sixth switch respectively, and the other end of the seventh switch is connected to the other end of the DC motor and one end of the eighth switch respectively;

[0021] The other end of the sixth switch and the other end of the eighth switch are both connected to the input end of the current detection resistor;

[0022] The drive control IC is respectively connected to the fifth switch, the sixth switch, the seventh switch, the eighth switch and the current detection resistor;

[0023] The output end of the DC motor is connected to the massage head.

[0024] As a preferred embodiment of the present invention, the voltage step-down control strategy of the voltage step-up / down circuit is:

[0025] The buck-boost control IC collects voltage values ​​in real time through a feedback resistor. When the voltage value is higher than a preset threshold, the buck-boost control IC controls the third switch to be in a normally open state and the fourth switch to be in a normally closed state;

[0026] At this time, the circuit cycle enters two working cycles. In the first working cycle, the buck-boost control IC controls the first switch to close and the second switch to open, and the input current charges the power inductor.

[0027] In the second working cycle, the buck-boost control IC controls the first switch to be disconnected and the second switch to be closed, and the power inductor discharges the load. As the output current of the power inductor gradually decreases, the voltage at the load end gradually decreases.

[0028] As a preferred embodiment of the present invention, the boost control strategy of the boost-boost circuit is:

[0029] The buck-boost control IC collects voltage values ​​in real time through a feedback resistor. When the voltage value is lower than a preset threshold, the buck-boost control IC controls the first switch to be in a normally closed state and the second switch to be in a normally open state;

[0030] At this time, the circuit cycle enters two working cycles. In the first working cycle, the buck-boost control IC controls the third switch to close and the fourth switch to open, and the input current charges the power inductor.

[0031] In the second working cycle, the buck-boost control IC controls the third switch to open and the fourth switch to close, and the power inductor discharges the load. At this time, the load terminal voltage is equal to the power inductor voltage plus the input power supply voltage, and the load terminal voltage rises.

[0032] The present invention has the following beneficial effects:

[0033] 1. The step-up and step-down circuit of the present invention ensures that the voltage of the driving motor of each massage mat is the same. The driving circuit software algorithm ensures the precise control of the motor massage head, and the experience is consistent, ensuring that the experience of each theater massage mat is consistent, allowing consumers to experience a more comfortable massage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of a massage mat arrangement according to the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of the massage pad of the present invention;

[0036] Figure 3 The step-up and step-down circuit diagram of the present invention;

[0037] Figure 4 This is a driving circuit diagram of the present invention. DETAILED DESCRIPTION

[0038] 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.

[0039] It should be understood that the step numbers used in this document are only for convenience of description and are not intended to limit the order in which the steps are executed.

[0040] It should be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0041] The terms “include” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0042] The term "and / or" means and includes any and all possible combinations of one or more of the associated listed items.

[0043] Embodiment 1:

[0044] See also Figure 1 , a row of massage cushions to enhance the massage experience, all massage cushions are connected in parallel through DC power lines, see Figure 2 , each massage pad includes a buck-boost circuit, a drive circuit and a massage head;

[0045] The input end of the buck-boost circuit is connected to the power line, and the output end of the buck-boost circuit is connected to the input end of the drive circuit;

[0046] The motor driven by the driving circuit is connected to the massage head;

[0047] The step-up / step-down circuit is used to determine whether the input voltage is a preset value, and if it is greater than the preset value, the input voltage is stepped down, and if it is less than the preset value, the input voltage is stepped up;

[0048] The driving circuit is used to indirectly control the massage head by controlling the rotation speed of the motor.

[0049] In this embodiment, the input power inputs a 12V / 24V voltage through a DC power line, and the buck-boost circuit converts the 12V / 24V voltage into a stable 12V;

[0050] See also Figure 3 , as a preferred implementation of this embodiment, the buck-boost circuit includes a buck-boost control IC, a power inductor L1, a feedback resistor and four switches;

[0051] In this embodiment, the switch is in the form of a MOS tube, and the feedback resistor includes R1 and R2;

[0052] The input power source is connected to one end of the first switch Q1, and the other end of the first switch Q1 is respectively connected to one end of the second switch Q2 and one end of the power inductor;

[0053] The other end of the power inductor L1 is connected to one end of the third switch Q3 and one end of the fourth switch Q4 respectively;

[0054] The other end of the fourth switch Q4 is respectively connected to the other end of the second switch Q2 and one end of the feedback resistor;

[0055] The other end of the third switch Q3 is connected to one end of the feedback resistor, and the other end of the feedback resistor is connected to the input end of the driving circuit;

[0056] The buck-boost control IC is respectively connected to the first switch Q1, the second switch Q2, the third switch Q3, the fourth switch Q4 and the feedback resistors R1 and R2;

[0057] As a preferred implementation of this embodiment, the buck-boost circuit further includes filter capacitors C3 and C2, which are respectively arranged at the input end and the output end of the circuit.

[0058] See also Figure 4 , as a preferred implementation of this embodiment, the driving circuit includes a driving control IC, an H-bridge driving circuit and a current detection resistor Rsense;

[0059] The output end of the buck-boost circuit is connected to the input end of the H-bridge driving circuit, the output end of the H-bridge driving circuit is connected to the input end of the current detection resistor Rsense, and the output end of the current detection resistor Rsense is grounded.

[0060] As a preferred implementation of this embodiment, the H-bridge driving circuit includes a driving control IC, four switches and a DC motor M1;

[0061] The power source is connected to one end of the fifth switch Q5 and the seventh switch Q7 respectively, the other end of the fifth switch Q5 is connected to one end of the DC motor M1 and one end of the sixth switch Q6 respectively, and the other end of the seventh switch Q7 is connected to the other end of the DC motor M1 and one end of the eighth switch Q8 respectively;

[0062] The other end of the sixth switch Q6 and the other end of the eighth switch Q8 are both connected to the input end of the current detection resistor;

[0063] The drive control IC is connected to the fifth switch, the sixth switch, the seventh switch, the eighth switch and the current detection resistor Rsense respectively.

[0064] As a preferred implementation of this embodiment, the voltage step-down control strategy of the voltage step-up / down circuit is:

[0065] The buck-boost control IC collects voltage values ​​in real time through a feedback resistor. When the voltage value is higher than a preset threshold, the buck-boost control IC controls the third switch Q3 to be in a normally open state and the fourth switch Q4 to be in a normally closed state.

[0066] At this time, the circuit cycle enters two working cycles. In the first working cycle, the buck-boost control IC controls the first switch Q1 to close and the second switch Q2 to open, and the input current charges the power inductor L1.

[0067] During the second working cycle, the buck-boost control IC controls the first switch Q1 to be disconnected and the second switch Q2 to be closed, and the power inductor L1 discharges the load. Since the first switch Q1 is disconnected, the power inductor L1 is disconnected from the input current, and the output current of the power inductor L1 gradually decreases, causing the voltage at the load end to gradually decrease.

[0068] As a preferred implementation of this embodiment, the boost control strategy of the boost-boost circuit is:

[0069] The buck-boost control IC collects voltage values ​​in real time through a feedback resistor. When the voltage value is lower than a preset threshold, the buck-boost control IC controls the first switch Q1 to be in a normally closed state and the second switch Q2 to be in a normally open state;

[0070] At this time, the circuit cycle enters two working cycles. In the first working cycle, the buck-boost control IC controls the third switch Q3 to close and the fourth switch Q4 to open, and the input current charges the power inductor L1.

[0071] In the second working cycle, the buck-boost control IC controls the third switch Q3 to be opened and the fourth switch Q4 to be closed, and the power inductor L1 discharges the load. At this time, the load terminal voltage is equal to the power inductor voltage plus the input power supply voltage, and the load terminal voltage rises.

[0072] In the embodiments of the present application, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. Among them, A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b and c can be represented by: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, c can be single or multiple.

[0073] Those of ordinary skill in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented in a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0074] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0075] In several embodiments provided in the present application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory; hereinafter referred to as: ROM), random access memory (Random Access Memory; hereinafter referred to as: RAM), disk or optical disk, and other media that can store program codes.

[0076] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made 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. A row of massage cushions for improving massage experience, wherein all massage cushions are connected in parallel via a DC power line, characterized in that: Each massage pad comprises a buck-boost circuit, a drive circuit and a massage head; The input end of the buck-boost circuit is connected to the power line, and the output end of the buck-boost circuit is connected to the input end of the drive circuit; The motor driven by the driving circuit is connected to the massage head; The step-up / step-down circuit is used to determine whether the input voltage is a preset value, and if it is greater than the preset value, the input voltage is stepped down, and if it is less than the preset value, the input voltage is stepped up; The driving circuit is used to indirectly control the massage head by controlling the rotation speed of the motor.

2. A row of massage cushions for improving massage experience according to claim 1, characterized in that: The buck-boost circuit includes a buck-boost control IC, a power inductor, a feedback resistor and four switches; The input power supply is connected to one end of the first switch, and the other end of the first switch is respectively connected to one end of the second switch and one end of the power inductor; The other end of the power inductor is connected to one end of the third switch and one end of the fourth switch respectively; The other end of the fourth switch is respectively connected to the other end of the second switch and one end of the feedback resistor; The other end of the third switch is connected to one end of the feedback resistor, and the other end of the feedback resistor is connected to the input end of the driving circuit; The buck-boost control IC is respectively connected to the first switch, the second switch, the third switch, the fourth switch and the feedback resistor.

3. A row of massage cushions for improving massage experience according to claim 2, characterized in that: The step-up / step-down circuit also includes filter capacitors, which are respectively arranged at the input end and the output end of the circuit.

4. The row massage cushion for improving massage experience according to claim 1, characterized in that: The driving circuit includes a driving control IC, an H-bridge driving circuit and a current detection resistor; The output end of the buck-boost circuit is connected to the input end of the H-bridge driving circuit, the output end of the H-bridge driving circuit is connected to the input end of the current detection resistor, and the output end of the current detection resistor is grounded.

5. The row massage cushion for improving massage experience according to claim 3, characterized in that: The H-bridge driving circuit includes a driving control IC, four switches and a DC motor; The power supply is connected to one end of the fifth switch and the seventh switch respectively, the other end of the fifth switch is connected to one end of the DC motor and one end of the sixth switch respectively, and the other end of the seventh switch is connected to the other end of the DC motor and one end of the eighth switch respectively; The other end of the sixth switch and the other end of the eighth switch are both connected to the input end of the current detection resistor; The drive control IC is respectively connected to the fifth switch, the sixth switch, the seventh switch, the eighth switch and the current detection resistor; The output end of the DC motor is connected to the massage head.

6. The row massage cushion for improving massage experience according to claim 2, characterized in that: The voltage step-down control strategy of the buck-boost circuit is: The buck-boost control IC collects voltage values ​​in real time through a feedback resistor. When the voltage value is higher than a preset threshold, the buck-boost control IC controls the third switch to be in a normally open state and the fourth switch to be in a normally closed state; At this time, the circuit cycle enters two working cycles. In the first working cycle, the buck-boost control IC controls the first switch to close and the second switch to open, and the input current charges the power inductor. In the second working cycle, the buck-boost control IC controls the first switch to be disconnected and the second switch to be closed, and the power inductor discharges the load. As the output current of the power inductor gradually decreases, the voltage at the load end gradually decreases.

7. The row massage cushion for improving massage experience according to claim 2, characterized in that: The boost control strategy of the buck-boost circuit is: The buck-boost control IC collects voltage values ​​in real time through a feedback resistor. When the voltage value is lower than a preset threshold, the buck-boost control IC controls the first switch to be in a normally closed state and the second switch to be in a normally open state; At this time, the circuit cycle enters two working cycles. In the first working cycle, the buck-boost control IC controls the third switch to close and the fourth switch to open, and the input current charges the power inductor. In the second working cycle, the buck-boost control IC controls the third switch to open and the fourth switch to close, and the power inductor discharges the load. At this time, the load terminal voltage is equal to the power inductor voltage plus the input power supply voltage, and the load terminal voltage rises.

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