Abstract: An ozone generator includes a transformer, a direct current power supply unit connected to a primary side of the transformer, a reactor connected to a secondary side of the transformer, a semiconductor switch connected between at least one end of a primary winding of the transformer and the direct current power supply unit, and a control circuit for implementing ON-OFF control of the semiconductor switch to thereby apply alternating current voltage to the reactor. The control circuit implements control of a frequency of the alternating current voltage applied to the reactor, so as to minimize electric signal on the primary side of the transformer.

Abstract: An ozone generator includes a transformer, a direct current power supply unit connected to a primary side of the transformer, a reactor connected to a secondary side of the transformer, a semiconductor switch connected between one end of a primary winding of the transformer and the direct current power supply unit, and a control circuit for implementing ON-OFF control of the semiconductor switch to thereby apply alternating current voltage to the reactor. The control circuit implements control to minimize electric signal on the primary side of the transformer by updating a switching frequency by a fixed change width from a reference frequency, and determines that a failure has occurred if the number of updates by the fixed change width exceeds a threshold value.

Abstract: An ozone generator includes one or more electrode pairs, wherein the electrode pairs each contain two electrodes arranged at a distance of a predetermined gap length, and ozone is produced when a source gas flows at least between the two electrodes of the electrode pair and a discharge is generated between the two electrodes. One of the two electrodes is located on an upstream side of the source gas and another is located on a downstream side of the source gas. A direction from the one electrode toward the other electrode is inclined with respect to a supply direction of the source gas.

Abstract: An ozone generator includes a housing having an internal cavity and a plurality of electrode pairs located in the internal cavity. The electrode pairs each contain two electrodes arranged at a distance of a predetermined gap length, and a discharge space is formed between the two electrodes, whereby ozone is produced when a source gas flows at least between the two electrodes and a discharge is generated between the two electrodes. The ozone generator has a non-discharge portion in an arbitrary cross-section having a normal direction parallel to a main flow direction of the source gas in the internal cavity.

Abstract: An electrode structural body includes a first electrode and a second electrode, and further includes a first retainer and a second retainer for fixing the first electrode and the second electrode. The first electrode and the second electrode are separated from each other, their axial directions being parallel to each other. The first electrode contains a first insulating body having a first hollow portion and a first conducting body located in the first hollow portion. The second electrode contains a second insulating body having a second hollow portion and a second conducting body located in the second hollow portion. At least in the first electrode, at least one end surface of the first conducting body is positioned inside the first hollow portion at a distance from one end surface of the first insulating body.

Abstract: An ozone generator includes one or more electrode pairs each containing two electrodes arranged at a distance of a predetermined gap length. In the ozone generator, ozone is produced when a source gas flows at least between the two electrodes and a discharge is generated between the two electrodes. Each electrode contains a tubular dielectric body having a hollow portion and a conductive body disposed in the hollow portion. The gap length is less than 1.0 mm.

Abstract: An ozone generator includes one or more electrode pairs each containing two electrodes arranged at a distance of a predetermined gap length and a power source for applying an alternating-current voltage between the two electrodes. In the ozone generator, ozone is produced when a source gas flows at least between the two electrodes and a discharge is generated between the two electrodes. The ozone generator has a discharge space formed between the two electrodes, and the ozone generator satisfies the condition of 0.5<V/f/L wherein V (m/s) represents a flow velocity of the source gas flowing through the discharge space, f (Hz) represents a frequency of the alternating-current voltage, and L (m) represents a length of the discharge space in the main flow direction of the source gas.

Abstract: A conductive connecting member 1 is contacted with an electrochemical cell for electrical conduction. The cell has a solid electrolyte film, a first electrode provided on a first face of the solid electrolyte film and contacting a first gas and the first gas, and a second electrode provided on a second face of the solid electrolyte film and contacting a second gas. The conductive connecting member 1 has a plate-like main part 2 and a tongue piece 3 protruding from the main part 2. One end of the tongue piece 3 is connected with the main part 2.

Abstract: A ceramic electrochemical cell 11 has a first electrode 12 contacting a first gas, a solid electrolyte film 13 and a second electrode 14 contacting a second gas. The electrochemical cell 11 is supported with a metal supporting member 1. A flow route 6 for a first gas is formed between the supporting member 1 and electrochemical cell 11. The supporting member 1 is supported with a metal manifold member. A gas supply hole and a gas discharge hole each communicated with the flow route 6 for the first gas is provided in the manifold member.

Abstract: A conductive connecting member 1 is contacted with an electrochemical cell for electrical conduction. The cell has a solid electrolyte film, a first electrode provided on a first face of the solid electrolyte film and contacting a first gas and the first gas, and a second electrode provided on a second face of the solid electrolyte film and contacting a second gas. The conductive connecting member 1 has a plate-like main part 2 and a tongue piece 3 protruding from the main part 2. One end of the tongue piece 3 is connected with the main part 2.