A pulse discharge device for generating a strong magnetic field

Abstract

The present invention relates to the field of pulse discharge technology, and in particular to a pulse discharge device for generating a strong magnetic field, comprising a charging circuit and a unidirectional circuit, and a first capacitor, a thyristor and an inductor connected in sequence. When the anode and cathode of the thyristor are disconnected, the first capacitor is charged. When the anode and cathode of the thyristor are turned on, the first capacitor performs pulse discharge to the inductor. The inductor generates a strong magnetic field for muscle training. When discharging, the excess electricity in the inductor can be charged to the first capacitor through the unidirectional circuit. That is to say, when the first capacitor performs pulse discharge to the inductor, the first capacitor will store part of the electricity, which greatly improves the utilization rate of electric energy. Moreover, when the anode and cathode of the thyristor are turned on, it is equivalent to short-circuiting the charging circuit, which can prevent the inductor discharge current from feeding back to the charging circuit to avoid damaging the charging circuit. No isolation device needs to be set separately, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of pulse discharge, and in particular to a pulse discharge device for generating a strong magnetic field. Background Art

[0002] At present, the topology of the existing strong magnetic field generator for muscle training is a series LC discharge device, which includes two parts, the first part is a charging circuit, and the second part is a discharge circuit. The discharge circuit in the existing strong magnetic field generator for muscle training uses a thyristor as a discharge switch and connects it in series between a capacitor and an inductor, which has the following disadvantages:

[0003] 1) An isolation device is required to prevent the discharge circuit from damaging the charging circuit, which is costly and results in a larger volume of the strong magnetic field generator used for muscle training;

[0004] 2) Low utilization rate of electric energy. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a pulse discharge device for generating a strong magnetic field in view of the deficiencies of the prior art.

[0006] The technical solution of a pulse discharge device for generating a strong magnetic field of the present invention is as follows:

[0007] It includes a charging circuit, a unidirectional circuit, a first capacitor, a thyristor and an inductor. The first capacitor and the inductor are connected in series to form a first series circuit. The anode and the cathode of the thyristor are respectively connected to the two ends of the first series circuit. The charging circuit is connected between the two ends of the first series circuit to apply voltage to the first series circuit and the thyristor. The current outflow end of the unidirectional circuit is connected to the current output end of the charging circuit, and the current inflow end of the unidirectional circuit is connected to the current input end of the charging circuit.

[0008] The beneficial effects of a pulse discharge device for generating a strong magnetic field of the present invention are as follows:

[0009] When the anode and cathode of the thyristor are disconnected, the first capacitor is charged. When the anode and cathode of the thyristor are turned on, the first capacitor performs pulse discharge to the inductor. The inductor generates a strong magnetic field for muscle training. When discharging, the excess electricity in the inductor can be charged to the first capacitor through a unidirectional circuit. That is to say, when the first capacitor performs pulse discharge to the inductor, the first capacitor will store part of the electricity, which greatly improves the utilization rate of electric energy. Moreover, when the anode and cathode of the thyristor are turned on, it is equivalent to short-circuiting the charging circuit, which can prevent the inductor discharge current from feeding back to the charging circuit to avoid damaging the charging circuit. There is no need to set up an isolation device separately, which is low in cost and makes the pulse discharge device for generating a strong magnetic field of the present application have the advantage of small size.

[0010] On the basis of the above scheme, the pulse discharge device for generating a strong magnetic field of the present invention can also be improved as follows.

[0011] Furthermore, the unidirectional circuit includes a diode, the cathode of the diode is the current outflow end of the unidirectional circuit, and the anode of the diode is the current inflow end of the unidirectional circuit.

[0012] Furthermore, the unidirectional circuit includes at least two diodes, and the at least two diodes are connected in series to form a second series circuit, and the two ends of the second series circuit are respectively a current outflow end and a current inflow end of the unidirectional circuit.

[0013] Furthermore, it also includes a thyristor control circuit, which is connected between the control electrode and the cathode of the thyristor.

[0014] The beneficial effect of adopting the above further solution is that the anode and cathode of the thyristor can be easily disconnected or turned on by the thyristor control circuit.

[0015] Furthermore, it also includes an absorption circuit, wherein two ends of the absorption circuit are respectively connected to the current output end and the current input end of the charging circuit to enable the thyristor to operate normally.

[0016] The beneficial effect of adopting the above further solution is that the normal operation of the thyristor can be ensured by the absorption circuit, and accidental conduction and / or accidental disconnection of the thyristor can be avoided.

[0017] Further, the absorption circuit includes a resistor and a second capacitor connected in sequence, the other end of the second capacitor is connected to the current output end of the charging circuit, and the other end of the resistor is connected to the current input end of the charging circuit, or the other end of the second capacitor is connected to the current input end of the charging circuit, and the other end of the resistor is connected to the current output end of the charging circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is one of the flow diagrams of a pulse discharge device for generating a strong magnetic field according to an embodiment of the present invention;

[0019] Figure 2 This is a second structural schematic diagram of a pulse discharge device for generating a strong magnetic field according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] like Figure 1 and Figure 2 As shown, a pulse discharge device for generating a strong magnetic field according to an embodiment of the present invention comprises a charging circuit 100, a unidirectional circuit 200, a first capacitor C1, a thyristor Q1 and an inductor L1, wherein the first capacitor C1 and the inductor L1 are connected in series to form a first series circuit, the anode and the cathode of the thyristor Q1 are respectively connected to the two ends of the first series circuit, the charging circuit 100 is connected between the two ends of the first series circuit to apply a voltage to the first series circuit and the thyristor Q1, the current outflow end 201 of the unidirectional circuit 200 is connected to the current output end 101 of the charging circuit 100, and the current inflow end 202 of the unidirectional circuit 200 is connected to the current input end 102 of the charging circuit 100.

[0021] Among them, the positions of the first capacitor C1 and the inductor L1 in the first series circuit are interchangeable, and the two ends of the first series circuit are marked as the first connection end 103 and the second connection end 104 respectively. Then: the anode and cathode of the thyristor Q1 are respectively connected to the two ends of the first series circuit, specifically: the anode of the thyristor Q1 is connected to the first connection end 103, and the cathode of the thyristor Q1 is connected to the second connection end 104, or, the anode of the thyristor Q1 is connected to the second connection end 104, and the cathode of the thyristor Q1 is connected to the first connection end 103.

[0022] The charging circuit 100 is connected between the two ends of the first series circuit specifically as follows: the current output end 101 of the charging circuit 100 is connected to the first connection end 103, and the current input end 102 of the charging circuit 100 is connected to the second connection end 104, so as to apply a voltage to the first series circuit and the thyristor Q1, or the current output end 101 of the charging circuit 100 is connected to the second connection end 104, and the current input end 102 of the charging circuit 100 is connected to the first connection end 103, so as to apply a voltage to the first series circuit and the thyristor Q1.

[0023] Among them, in the unidirectional circuit 200, only the current from the current inflow end 202 to the current outflow end 201 can pass through, otherwise it is equivalent to a short circuit. The specific structure of the unidirectional circuit 200 is as follows:

[0024] 1) The unidirectional circuit 200 includes a diode, wherein the cathode of the diode is the current outflow end 201 of the unidirectional circuit 200, and the anode of the diode is the current inflow end 202 of the unidirectional circuit 200. At this time, the cathode of the diode is connected to the current output end 101 of the charging circuit 100, and the anode of the diode is connected to the current output end 101 of the charging circuit 100.

[0025] 2) The unidirectional circuit 200 includes at least two diodes, which are connected in series to form a second series circuit, and the two ends of the second series circuit are respectively the current outflow end 201 and the current inflow end 202 of the unidirectional circuit 200. Specifically:

[0026] ① When the unidirectional circuit 200 includes two diodes, marked as a first diode D1 and a second diode D2, the first diode D1 and the second diode D2 are connected in series, specifically: the cathode of the second diode D2 is connected to the anode of the first diode D1, and the two ends of the second series circuit are respectively: the cathode of the first diode D1 and the anode of the second diode D2, and the two ends of the second series circuit are respectively the current outflow end 201 and the current inflow end 202 of the unidirectional circuit 200, specifically:

[0027] The cathode of the first diode D1 is the current outflow end 201 of the unidirectional circuit 200, that is, the cathode of the first diode D1 is connected to the current output end 101 of the charging circuit 100, and the anode of the second diode D2 is the current inflow end 202 of the unidirectional circuit 200, that is, the anode of the second diode D2 is connected to the current input end 102 of the charging circuit 100;

[0028] ② When the unidirectional circuit 200 includes at least three diodes, the cathode of the first diode of two adjacent diodes is connected to the anode of the second diode, and the two ends of the second series circuit are respectively: the cathode of one of the diodes at the end and the anode of the other diode at the end, and the two ends of the second series circuit are respectively the current outflow end 201 and the current inflow end 202 of the unidirectional circuit 200, specifically:

[0029] The cathode of one of the diodes at the end is the current outflow end 201 of the unidirectional circuit 200 , that is, the cathode of one of the diodes at the end is connected to the current output end 101 of the charging circuit 100 , and the anode of the other diode at the end is the current inflow end 202 of the unidirectional circuit 200 , that is, the anode of the other diode at the end is connected to the current input end 102 of the charging circuit 100 .

[0030] When the anode and cathode of the thyristor Q1 are disconnected, the first capacitor C1 is charged. When the anode and cathode of the thyristor Q1 are turned on, the first capacitor C1 performs pulse discharge to the inductor L1. The inductor L1 generates a strong magnetic field for muscle training. When discharging, the excess electricity in the inductor L1 can be charged to the first capacitor C1 through the unidirectional circuit 200. That is to say, when the first capacitor C1 performs pulse discharge to the inductor L1, the first capacitor C1 will store part of the electricity, which greatly improves the utilization rate of electric energy. Moreover, when the anode and cathode of the thyristor Q1 are turned on, it is equivalent to short-circuiting the charging circuit, which can prevent the discharge current of the inductor L1 from feeding back to the charging circuit 100 to avoid damaging the charging circuit 100100. There is no need to set up an isolation device separately, which is low in cost and makes the pulse discharge device for generating a strong magnetic field of the present application have the advantage of small size.

[0031] Preferably, if Figure 1 As shown, in the above technical solution, a thyristor control circuit 300 is also included. The thyristor control circuit 300 is connected between the control electrode and the cathode of the thyristor Q1. The thyristor control circuit 300 is used to disconnect or connect the anode and cathode of the thyristor Q1.

[0032] Preferably, in the above technical solution, an absorption circuit is also included, and the two ends of the absorption circuit are respectively connected to the current output end 101 and the current input end 102 of the charging circuit 100, so that the thyristor Q1 can operate normally. The absorption circuit can ensure the normal operation of the thyristor Q1 and avoid accidental conduction and / or accidental disconnection of the thyristor Q1. The absorption circuit can be in the following specific forms:

[0033] 1) The absorption circuit includes a resistor R1 and a second capacitor C2 connected in sequence, the other end of the second capacitor C2 is connected to the current output terminal 101 of the charging circuit 100, and the other end of the resistor R1 is connected to the current input terminal 102 of the charging circuit 100, or the other end of the second capacitor C2 is connected to the current input terminal 102 of the charging circuit 100, and the other end of the resistor R1 is connected to the current output terminal 101 of the charging circuit 100.

[0034] 2) The absorption circuit may also be a circuit available on the market that can ensure the normal operation of the thyristor Q1;

[0035] The following is a detailed description of a pulse discharge device for generating a strong magnetic field according to another embodiment of the present invention, as shown in Figure 2:

[0036] The invention comprises a charging circuit 100, a unidirectional circuit 200, a first capacitor C1, a thyristor Q1 and an inductor L1, wherein the first capacitor C1 and the inductor L1 are connected in series to form a first series circuit, the anode and the cathode of the thyristor Q1 are respectively connected to the two ends of the first series circuit, the charging circuit 100 is connected between the two ends of the first series circuit to apply a voltage to the first series circuit and the thyristor Q1, the current outflow end 201 of the unidirectional circuit 200 is connected to the current output end 101 of the charging circuit 100, and the current inflow end 202 of the unidirectional circuit 200 is connected to the current input end 102 of the charging circuit 100. Specifically:

[0037] The positions of the first capacitor C1 and the inductor L1 in the first series circuit are interchangeable, and the two ends of the first series circuit are marked as a first connection end 103 and a second connection end 104, respectively. Specifically, the first connection end 103 is located between the first capacitor C1 and the anode of the thyristor Q1, and the second connection end 104 is located between the capacitor and the cathode of the thyristor Q1. At this time, the anode and cathode of the thyristor Q1 are respectively connected to the two ends of the first series circuit, specifically: the anode of the thyristor Q1 is connected to the first connection end 103, and the cathode of the thyristor Q1 is connected to the second connection end 104;

[0038] The charging circuit 100 is connected between the two ends of the first series circuit: the current output end 101 of the charging circuit 100 is connected to the first connection end 103, and the current input end 102 of the charging circuit 100 is connected to the second connection end 104, so as to apply voltage to the first series circuit and the thyristor Q1;

[0039] The unidirectional circuit 200 includes two diodes, marked as a first diode D1 and a second diode D2, respectively. The first diode D1 and the second diode D2 are connected in series. Specifically, the cathode of the second diode D2 is connected to the anode of the first diode D1. The two ends of the second series circuit are respectively the cathode of the first diode D1 and the anode of the second diode D2. The two ends of the second series circuit are respectively the current outflow end 201 and the current inflow end 202 of the unidirectional circuit 200. Specifically,

[0040] The cathode of the first diode D1 is the current outflow end 201 of the unidirectional circuit 200, that is, the cathode of the first diode D1 is connected to the current output end 101 of the charging circuit 100, and the anode of the second diode D2 is the current inflow end 202 of the unidirectional circuit 200, that is, the anode of the second diode D2 is connected to the current input end 102 of the charging circuit 100;

[0041] It also includes a thyristor control circuit 300, which is connected between the control electrode and the cathode of the thyristor Q1;

[0042] It also includes an absorption circuit, which includes a resistor R1 and a second capacitor C2 connected in sequence, the other end of the second capacitor C2 is connected to the current output end 101 of the charging circuit 100, and the other end of the resistor R1 is connected to the current input end 102 of the charging circuit 100 to prevent the thyristor Q1 from being accidentally turned on and / or accidentally disconnected. Figure 2 The specific working process of a pulse discharge device for generating a strong magnetic field is as follows:

[0043] 1) The charging process is as follows: when the thyristor control circuit 300 does not apply a voltage between the control electrode and the cathode of the thyristor Q1, the anode and the cathode of the thyristor Q1 will not be conducted, and the charging circuit 100 outputs a direct current to charge the first capacitor C1 through the first connection terminal 103. At this time, the inductor L1 is equivalent to being directly conducted. With respect to the direct current, the absorption circuit formed by the resistor R1 and the second capacitor C2 is open circuit, and the unidirectional circuit 200 formed by the first diode D1 and the second diode D2 is open circuit;

[0044] 1) The discharge process is as follows: after charging the first capacitor C1, when the thyristor control circuit 300 applies a voltage between the control electrode and the cathode of the thyristor Q1, the anode and the cathode of the thyristor Q1 are connected, and the first capacitor C1 performs pulse discharge to the inductor L1. The inductor L1 generates a strong magnetic field for muscle training, and during the discharge process, the inductor L1 generates a reverse current. At this time, relative to the reverse current, the unidirectional circuit 200 formed by the first diode D1 and the second diode D2 is a path, and the reverse current can pass through the second diode D2 and the first diode D1 in sequence, and charge the first capacitor C1 with the excess electricity in the inductor L1. That is to say, when the first capacitor C1 performs pulse discharge to the inductor L1, the first capacitor C1 will store part of the electricity, greatly improving the utilization rate of electric energy;

[0045] Moreover, when the anode and cathode of the thyristor Q1 are turned on, it is equivalent to short-circuiting the charging circuit, which can prevent the discharge current of the inductor L1 from feeding back to the charging circuit 100 to avoid damaging the charging circuit 100. There is no need to set up an isolation device separately, the cost is low, and the pulse discharge device for generating a strong magnetic field in the present application has the advantage of a small size.

[0046] The pulse discharge device for generating a strong magnetic field of the present invention changes the connection mode of the thyristor Q1, the inductor L1 and the first capacitor C1, and recovers the residual energy through the additional first diode D1 and the second diode D2, which can not only obtain a complete cycle of sinusoidal current, but also improve the efficiency of using electric energy; in order to simply and reliably control the LC resonant circuit, the natural isolation of the charging circuit 100 and the discharge circuit is realized, which has very important practical value for being used as a pulse strong magnetic field generating system. Among them, a grounding electrode is also provided on the wire between the current input terminal 102 and the second connection terminal 104 of the charging circuit 100.

[0047] The pulse discharge device for generating a strong magnetic field of the present invention has the following advantages:

[0048] 1) The thyristor Q1 can be driven directly in a common ground mode, and the driving transformer can be omitted;

[0049] 2) When the anode and cathode of the thyristor Q1 are conducting, the charging circuit is short-circuited, preventing the discharge current of the inductor L1 from feeding back to the charging circuit 100 and causing damage to the charging circuit 100;

[0050] 3) The topological method of the present invention is specifically as follows: the types and connection methods of various electronic devices in a pulse discharge device for generating a strong magnetic field in the present application, especially the inductor L1 and the first capacitor C1 are connected in series and then in parallel with the thyristor Q1, and even if the inductor L1 and the capacitor are swapped, it does not hinder the essence of the present technology. The low DC resistance of the inductor L1 is utilized to make it in the charging circuit at the same time, which also makes the discharge circuit separate from the charging circuit without the need for an isolator.

[0051] In the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying 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 the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A pulse discharge device for generating a strong magnetic field, characterized in that: The device comprises a charging circuit, a unidirectional circuit, a first capacitor, a thyristor and an inductor, wherein the first capacitor and the inductor are connected in series to form a first series circuit, the anode and the cathode of the thyristor are respectively connected to the two ends of the first series circuit, the charging circuit is connected between the two ends of the first series circuit to apply a voltage to the first series circuit and the thyristor, the current outflow end of the unidirectional circuit is connected to the current output end of the charging circuit, and the current inflow end of the unidirectional circuit is connected to the current input end of the charging circuit; It also includes a thyristor control circuit, which is connected between the control electrode and the cathode of the thyristor; It also includes an absorption circuit, the two ends of which are respectively connected to the current output end and the current input end of the charging circuit to enable the thyristor to operate normally.

2. A pulse discharge device for generating a strong magnetic field according to claim 1, characterized in that: The unidirectional circuit includes a diode, wherein the cathode of the diode is a current outflow end of the unidirectional circuit, and the anode of the diode is a current inflow end of the unidirectional circuit.

3. A pulse discharge device for generating a strong magnetic field according to claim 1, characterized in that: The unidirectional circuit includes at least two diodes, which are connected in series to form a second series circuit. The two ends of the second series circuit are respectively the current outflow end and the current inflow end of the unidirectional circuit. In every two adjacent diodes, the cathode of the previous diode is connected to the anode of the next diode.

4. A pulse discharge device for generating a strong magnetic field according to claim 1, characterized in that: The absorption circuit includes a resistor and a second capacitor connected in sequence, the other end of the second capacitor is connected to the current output end of the charging circuit, and the other end of the resistor is connected to the current input end of the charging circuit, or the other end of the second capacitor is connected to the current input end of the charging circuit, and the other end of the resistor is connected to the current output end of the charging circuit.

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