CN114888499B - Dry-reed relay protection and drive circuit for wire bonding machine - Google Patents
Dry-reed relay protection and drive circuit for wire bonding machine Download PDFInfo
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- CN114888499B CN114888499B CN202210823069.9A CN202210823069A CN114888499B CN 114888499 B CN114888499 B CN 114888499B CN 202210823069 A CN202210823069 A CN 202210823069A CN 114888499 B CN114888499 B CN 114888499B
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- reed relay
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
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- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Relay Circuits (AREA)
Abstract
The invention provides a dry reed relay protection and drive circuit for a wire bonding machine, which relates to the field of electronic circuits and comprises first to third protection circuits, first to second drive circuits, a first dry reed relay and a second dry reed relay, wherein the first protection circuit is connected with the first dry reed relay, the first protection circuit is connected with a constant current high-voltage source end, and the first dry reed relay is connected with the third protection circuit; the second protection circuit is connected with the second reed relay, the second protection circuit is connected with the excitation low-voltage signal end, and the output port of the second reed relay is connected with the third protection circuit; the input port of the first driving circuit is connected with a control signal, and the first driving circuit and the second driving circuit drive the first reed relay and the second reed relay respectively through the first control coil and the second control coil. The invention realizes the free switching between the constant current high-voltage source end and the excitation low-voltage signal end, has good switching effect, does not need to adopt a mercury relay, and greatly saves the cost.
Description
Technical Field
The application relates to the field of electronic circuits, in particular to a dry reed relay protection and drive circuit for a wire bonding machine.
Background
The wire bonder needs to burn a gold ball on a gold wire through high pressure before bonding welding, and a system needs to switch to a low-pressure detection signal end to detect the welding quality of the welded gold wire after the bonding welding is finished.
At present, mercury relays are adopted to switch in the process of switching high voltage to a low voltage detection signal end. However, in recent years, many mercury products are forbidden to be produced due to environmental protection requirements, so that the prices of imported and domestic mercury relays are higher and higher, and even the mercury relays are likely to be not produced any more in the following process, so that the switching technology of switching high voltage to low voltage detection signal terminals needs to be improved, and a scheme of switching high voltage to low voltage detection signal terminals with low cost and good effect is found.
Based on the above, the present invention provides a dry reed relay protection and driving circuit for a wire bonding machine, so as to solve the above problems.
Disclosure of Invention
An object of the embodiment of the application provides a dry reed relay protection and drive circuit for bonding machine, can solve the bonding machine and switch over the problem of low pressure detection signal end from the high pressure in bonding welding process, replace mercury relay, greatly reduced overall cost.
In order to solve the technical problem, the technical scheme of the application is as follows:
a dry reed relay protection and drive circuit for a wire bonding machine, comprising:
a first protection circuit, a second protection circuit and a third protection circuit; a drive circuit; a first reed relay and a second reed relay;
the first protection circuit and the first reed relay are mutually connected through electric signals, an input port of the first protection circuit is connected with a constant current high-voltage source end, and an output port of the first reed relay is connected with an input port of the third protection circuit;
the second protection circuit and the second reed relay are mutually connected through electric signals, an input port of the second protection circuit is connected with an excitation low-voltage signal end, and an output port of the second reed relay is connected with an input port of the third protection circuit;
the input ports of the first driving circuit and the second driving circuit are used for inputting control signals, and the first driving circuit and the second driving circuit drive the first reed relay and the second reed relay through the first control coil and the second control coil respectively; the dry reed relay is internally provided with a diode and a coil which are connected in parallel.
The current generated by the constant-current high-voltage source end is input to the gold wire ignition end through the first protection circuit, the first reed relay and the third protection circuit in sequence to finish ball burning of the gold wire;
control signals are respectively input into the first driving circuit and the second driving circuit, a second control coil of the second driving circuit rotates to enable the second dry reed relay to be attracted, and at the moment, an excitation voltage signal generated by an excitation low-voltage signal end sequentially passes through the second protection circuit, the second dry reed relay and the third protection circuit to a gold wire ignition end to detect the welding quality of a welded gold wire.
Preferably, the input ports of the first driving circuit and the second driving circuit are both connected with a CTL signal end;
the CTL signal end outputs the control signal, and the control signal comprises a high-voltage ignition control signal and a low-voltage detection control signal;
and the output port of the third protection circuit is connected with the ignition end of the gold wire.
Preferably, the first protection circuit includes inductors L1, L2, resistors R4, R5, and a diode D6, wherein: the inductor L1 is connected with the resistor R4 in parallel, then is connected with the parallel circuit of the inductor L2 and the resistor R5 in series, and then is connected with the diode D6 in parallel. The second protection circuit comprises a resistor R1 and two diodes D7 and D8 which are connected in series, one end of each diode D7 and D8 is grounded after being connected in series, one end of each diode D7 is connected with the resistor R1, and the other end of the resistor R1 is connected with an excitation signal end. The third protection circuit comprises an inductor L3, a diode D1 and a triode Q3, the inductor L3 is connected with the diode D1 in parallel, and one end of the triode Q3 is connected with a circuit formed by connecting the inductor L3 and the diode D1 in parallel.
Preferably, each of the first and second reed relays has a diode and a coil built therein, and the diode and the coil are connected in parallel.
Preferably, a normally open switch is arranged in the first reed relay, and a normally open switch is arranged in the second reed relay.
Preferably, when the CTL signal end outputs a high-voltage sparking control signal to the second driving circuit, the second driving circuit triggers the switch of the second reed relay to close and connect with the excitation low-voltage signal end;
when the CTL signal end outputs a low-voltage detection control signal to the first driving circuit, the first driving circuit triggers the switch of the first reed relay to be closed and is connected with the constant-current high-voltage source end.
Compared with the prior art, the dry reed relay has the advantages that the driving circuit and the dry reed relay are designed, the driving circuit can drive the switch in the dry reed relay to be switched and connected with the constant current high-voltage source end or the excitation low-voltage signal end under different signal triggers, free switching between the constant current high-voltage source end and the excitation low-voltage signal end is achieved, the switching effect is good, a mercury relay is not needed, and the cost is greatly saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and not to limit the application. Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or components, it being understood by those skilled in the art that the drawings are not necessarily drawn to scale and wherein:
fig. 1 is a circuit diagram of a dry reed relay protection and driving circuit for a wire bonding machine according to the present invention.
Fig. 2 is a schematic circuit diagram of a dry reed relay protection and drive protection circuit for a wire bonding machine according to the present invention.
Fig. 3 is a circuit diagram of a first driver circuit for a reed relay protection and driver circuit of a wire bonding machine according to the present invention.
Fig. 4 is a circuit diagram of a second driver circuit for a reed relay protection and driver circuit of a wire bonding machine according to the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are merely one example of a component of the present application and not an all component embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings only for the convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The following embodiments of the present application will describe the solution of the present application in detail by taking a dry reed relay protection and driving circuit for a wire bonding machine as an example, but the scope of the present application is not limited by the embodiments.
As shown in fig. 1-4, a dry reed relay protection and drive circuit for a wire bonding machine, comprising: a first protection circuit, a second protection circuit and a third protection circuit; a drive circuit; a first reed relay and a second reed relay;
the first protection circuit and the first reed relay are mutually connected through electric signals, an input port of the first protection circuit is connected with a constant current high-voltage source end, and an output port of the first reed relay is connected with an input port of the third protection circuit;
the second protection circuit and the second reed relay are mutually connected through electric signals, an input port of the second protection circuit is connected with an excitation low-voltage signal end, and an output port of the second reed relay is connected with an input port of the third protection circuit;
the input port of the first driving circuit is used for inputting a control signal, and the first driving circuit and the second driving circuit drive the first reed relay and the second reed relay through the first control coil and the second control coil respectively.
The current generated by the constant-current high-voltage source end is input to the gold wire ignition end through the first protection circuit, the first reed relay and the third protection circuit in sequence to finish ball burning of a gold wire;
after the bonding welding is finished, when a control signal is at a low level, the second driving circuit works, the control signal is respectively input into the first driving circuit and the second driving circuit, the second driving circuit drives the second control coil to rotate so that the second dry reed relay is attracted, and at the moment, an excitation low-voltage signal end generates an excitation voltage signal and sequentially passes through the second protection circuit, the second dry reed relay and the third protection circuit to detect the welding quality of a gold wire subjected to welding through a gold wire ignition end.
And the input ports of the first driving circuit and the second driving circuit are both connected with a CTL signal end.
The first protection circuit comprises an inductor L1, an inductor L2, a resistor R4, a resistor R5 and a diode D6, wherein: the inductor L1 and the resistor R4 are connected in parallel, then are connected in series with the parallel circuit of the inductor L2 and the resistor R5, and then are connected in parallel with the diode D6.
The second protection circuit comprises a resistor R1 and two diodes D7 and D8 which are connected in series, wherein one end of the diode D7 and the diode D8 are grounded after being connected in series, one end of the diode is connected with the resistor R1, and the other end of the resistor R1 is connected with an excitation signal end.
The third protection circuit comprises an inductor L3, a diode D1 and a triode Q3, the inductor L3 is connected with the diode D1 in parallel, and one end of the triode Q3 is connected with a circuit formed by connecting the inductor L3 and the diode D1 in parallel.
A normally open switch K1 is arranged in the first dry reed relay, and a normally open switch K2 is arranged in the second dry reed relay.
When the CTL signal end outputs a high-voltage ignition control signal to the second driving circuit, the second driving circuit triggers a switch K2 of the second reed relay to be communicated with the excitation low-voltage signal end; when the CTL signal end outputs a low-voltage detection control signal to the first driving circuit, the first driving circuit triggers a switch K2 of the first reed relay to be communicated with the constant-current high-voltage source end.
Specifically, the input ports of the first driving circuit and the second driving circuit are both connected with a CTL signal end; when the CTL signal end outputs a high-voltage ignition control signal to the second driving circuit, the second driving circuit triggers the switch K2 of the second reed relay to be closed and connected with the excitation low-voltage signal end, and the switch K1 of the first reed relay is continuously in an off state; when the CTL signal end outputs a low-voltage detection control signal to the first driving circuit, the first driving circuit triggers the switch K1 of the first reed relay to be closed and connected with the constant-current high-voltage source end, and the switch K2 of the second reed relay is switched to be in an off state.
The working principle and the process of the embodiment are as follows: when a received control signal CTL is at a low level, a second driving circuit consisting of a triode Q1, a triode Q2, a resistor R10, a resistor R8, a resistor R7, a resistor R6 and a resistor R9 enables a collector electrode 3 pin of the triode Q2 to be at a low level so as to enable a first control coil to act, the switch K1 of the first dry reed relay is driven to suck, at the moment, the current of a constant-current high-voltage source end is output to a gold wire ignition end through a third protection circuit consisting of an inductor L1, an inductor L2, a resistor R4, a resistor R5 and a diode D6 to inhibit the damage of transient impact current to the switch K1 of the first dry reed relay, then the current flows through the switch K1 of the first dry reed relay and then is output to the gold wire ignition end through the third protection circuit consisting of the inductor L3, the diode D1 and the triode Q3 to complete the firing of a pair of gold wire, and the third protection circuit mainly inhibits the impact surge from the ignition end to the switch K1 of the first dry reed relay;
when the received control signal CTL is at a high level, a first driving circuit composed of the triode Q4, the capacitor C8, the resistor R2, the resistor R3 and the capacitor C5 performs phase reversal to enable a pin of a collector 3 of the triode Q4 to output a low level, the first control coil does not act, a switch K1 of the first reed relay does not attract, and meanwhile, a second driving circuit composed of the triode Q1, the triode Q2, the resistor R10, the resistor R8, the resistor R7, the resistor R6 and the resistor R9 enables the pin of the collector 3 of the triode Q2 to change into a high-level second control coil to act to drive the switch K2 of the second reed relay to attract; and a second protection circuit consisting of a resistor R1, a diode D7 and a diode D8 inhibits transient high voltage and protects an excitation low-voltage signal source and a second dry-reed relay switch K2, and an excitation low-voltage signal passes through the second dry-reed relay switch K2 and a third protection circuit consisting of an inductor L3, a diode D1 and a triode Q3 to a gold wire ignition end to detect the welding quality of the welded gold wire.
In the scheme, the dry reed relay can be triggered to switch the constant-current high-voltage source end and the excitation low-voltage signal end by the driving of the signal of the driving circuit.
Compared with the prior art, the dry reed relay has the advantages that the driving circuit and the dry reed relay are designed, the driving circuit can drive the switch in the dry reed relay to be switched and connected with the constant current high-voltage source end or the excitation low-voltage signal end under different signal triggers, free switching between the constant current high-voltage source end and the excitation low-voltage signal end is achieved, the switching effect is good, a mercury relay is not needed, and the cost is greatly saved.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments can be modified, or technical features of components or all components thereof can be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (5)
1. A dry reed relay protection and drive circuit for a wire bonding machine, comprising:
the protection circuit comprises a first protection circuit, a second protection circuit, a third protection circuit, a first drive circuit, a second drive circuit, a first reed relay and a second reed relay;
the first protection circuit and the first reed relay are mutually connected through electric signals, an input port of the first protection circuit is connected with a constant current high-voltage source end, and an output port of the first reed relay is connected with an input port of the third protection circuit;
the second protection circuit and the second reed relay are mutually connected through electric signals, an input port of the second protection circuit is connected with an excitation low-voltage signal end, and an output port of the second reed relay is connected with an input port of the third protection circuit;
the input ports of the first driving circuit and the second driving circuit are used for inputting control signals, and the first driving circuit and the second driving circuit drive the first reed relay and the second reed relay through the first control coil and the second control coil respectively;
the current generated by the constant-current high-voltage source end is input to the gold wire ignition end through the first protection circuit, the first reed relay and the third protection circuit in sequence to finish ball burning of a gold wire;
control signals are respectively input into the first driving circuit and the second driving circuit, the second driving circuit drives the second control coil to rotate so as to enable the second dry reed relay to be attracted, and at the moment, an excitation voltage signal generated by an excitation low-voltage signal end sequentially passes through the second protection circuit, the second dry reed relay and the third protection circuit to a gold wire ignition end to detect the welding quality of a welded gold wire;
the first protection circuit comprises inductors L1 and L2, resistors R4 and R5 and a diode D6, wherein: the inductor L1 and the resistor R4 are connected in parallel, then are connected in series with a parallel circuit of the inductor L2 and the resistor R5, and then are connected in parallel with the diode D6;
the second protection circuit comprises a resistor R1 and two diodes D7 and D8 which are connected in series, wherein one end of each diode D7 and D8 is grounded after being connected in series, one end of each diode is connected with the resistor R1, and the other end of the resistor R1 is connected with an excitation signal end;
the third protection circuit comprises an inductor L3, a diode D1 and a triode Q3, the inductor L3 is connected with the diode D1 in parallel, and one end of the triode Q3 is connected with a circuit formed by connecting the inductor L3 and the diode D1 in parallel.
2. The reed relay protection and drive circuit for a wire bonding machine as claimed in claim 1, wherein the input ports of the first drive circuit and the second drive circuit are connected to CTL signal terminals;
the CTL signal end outputs the control signal, and the control signal comprises a high-voltage ignition control signal and a low-voltage detection control signal;
and the output port of the third protection circuit is connected with the ignition end of the gold wire.
3. The reed relay protection and drive circuit for a wire bonding machine of claim 2, wherein the first reed relay and the second reed relay each have a diode and a coil built in, the diode and the coil being connected in parallel.
4. The reed relay protection and drive circuit for a wire bonding machine of claim 3, wherein a normally open switch is disposed within the first reed relay and a normally open switch is disposed within the second reed relay.
5. The reed relay protection and drive circuit for a wire bonding machine as claimed in claim 4, wherein when the CTL signal terminal outputs the high voltage sparking control signal to the second drive circuit, said second drive circuit triggers the switch of the second reed relay to close and energize the low voltage signal terminal;
when the CTL signal end outputs a low-voltage detection control signal to the first driving circuit, the first driving circuit triggers the switch of the first reed relay to be closed and is connected with the constant-current high-voltage source end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210823069.9A CN114888499B (en) | 2022-07-14 | 2022-07-14 | Dry-reed relay protection and drive circuit for wire bonding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210823069.9A CN114888499B (en) | 2022-07-14 | 2022-07-14 | Dry-reed relay protection and drive circuit for wire bonding machine |
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| Publication Number | Publication Date |
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| CN114888499A CN114888499A (en) | 2022-08-12 |
| CN114888499B true CN114888499B (en) | 2022-12-20 |
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| CN202210823069.9A Active CN114888499B (en) | 2022-07-14 | 2022-07-14 | Dry-reed relay protection and drive circuit for wire bonding machine |
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| CN116079186B (en) * | 2023-04-07 | 2023-07-04 | 深圳市大族封测科技股份有限公司 | Wire bonding machine and circuit switching device and circuit switching method thereof |
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| CN109494120A (en) * | 2018-12-24 | 2019-03-19 | 深圳和而泰小家电智能科技有限公司 | Control relay circuit |
| CN110335836A (en) * | 2019-06-28 | 2019-10-15 | 广东阿达智能装备有限公司 | Bonding wire control device |
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| US6256185B1 (en) * | 1999-07-30 | 2001-07-03 | Trombetta, Llc | Low voltage direct control universal pulse width modulation module |
| US6741158B2 (en) * | 2002-07-18 | 2004-05-25 | Honeywell International Inc. | Magnetically sensed thermostat control |
| CN205304229U (en) * | 2015-12-24 | 2016-06-08 | 芜湖美智空调设备有限公司 | Relay control protection electric circuit and tame electric installation |
| CN216564925U (en) * | 2021-11-16 | 2022-05-17 | 浙江大华技术股份有限公司 | Multi-output power supply |
| CN216748020U (en) * | 2022-01-27 | 2022-06-14 | 青岛艾测科技有限公司 | Lithium battery core short circuit detection device capable of measuring capacity value |
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| CN106102441A (en) * | 2016-08-09 | 2016-11-09 | 深圳翠涛自动化设备股份有限公司 | The broken wire detection system of a kind of bonding equipment and method |
| CN109494120A (en) * | 2018-12-24 | 2019-03-19 | 深圳和而泰小家电智能科技有限公司 | Control relay circuit |
| CN110335836A (en) * | 2019-06-28 | 2019-10-15 | 广东阿达智能装备有限公司 | Bonding wire control device |
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