TWI407912B - Automatic Electricity Controlled Poultry Corona System - Google Patents

Abstract

The invention relates to an automatic power modulation electrical stunning system for fowl, comprising a delivery device and a plurality of power supply devices. The delivery device is utilized to deliver fowls. Each of the power supply devices comprises a conversion circuit connected to a mains power, an electrode set connected to the conversion circuit, and a controller connected to the conversion circuit and the electrode set and provided with a preset value. The conversion circuit is utilized to process the mains power into an electrical stunning voltage with a frequency greater than that of the mains power. The electrode set is utilized to receive the electrical stunning voltage to electrically stun the fowls. The controller is utilized to receive a feedback current travelling through the fowls and to compare the feedback current with the preset value, thereby controlling the electrical stunning voltage to ensure the skin completeness of the stunned fowls.

Description

Automatic energy-regulated poultry corona system

The present invention relates to a poultry corona system, and more particularly to an avian corona system that automatically regulates electrical energy.

With the changes in the slaughter concept and food hygiene and safety of poultry (eg chickens, ducks, geese, pigs, cattle and sheep), the traditional way of directly slaughtering poultry has gradually been abandoned, and the use of electric shock has led to the fainting of poultry. In giving and slaughter.

In the course of electric shock, the problem of affecting the selling phase caused by excessive electric shock, such as rupture of poultry microvessels and blood stasis, often occurs, and commercial losses are caused. Therefore, Taiwan Patent No. I321451 discloses a multi-electrode stunning device and method, A disturbing voltage and a consistent faint voltage are applied to the poultry to be slaughtered, causing the poultry skin to collapse rapidly and faint the poultry. However, taking chickens in poultry as an example, the current chicken breeds are divided into red-feathered chicken, black-bone chicken, ring-necked chicken, Taiwan native chicken, imitation pheasant, Taitung wild red pheasant, Taitung wild cockfighting. French nude neck chicken, black feather chicken and cockfighting, etc., and each type of chicken can be classified by weight. Therefore, if the electric shock disclosed in the patent No. I321451 is used, it may not be possible according to each electric shock. The actual condition of the chicken, the appropriate electric shock voltage or current is applied to effectively solve the above problem of affecting the selling phase.

In addition, if the power is applied to the bird at a general mains frequency of about 50~60 Hz, it is easy to cause the bird's heart to stop beating, so that Incomplete bloodletting during slaughtering

Therefore, the main object of the present invention is to provide an automatic electric energy regulating poultry corona system which can apply an appropriate frequency of electric shock voltage according to the actual condition of each bird to avoid excessive electric shock and affect the selling phase.

Therefore, in order to achieve the foregoing object, the present invention provides an automatic electric energy regulating poultry corona system comprising a conveying device and a plurality of power supply devices. The conveying device is used to transport a plurality of birds. Each power supply device includes a conversion circuit, an electrode group, and a controller. The conversion circuit is connected to a mains supply and is used to process the mains into a shock voltage having a frequency higher than the frequency of the mains. The electrode assembly is connected to the conversion circuit and is configured to receive the shock voltage and call the birds. The controller is connected to the conversion circuit and the electrode group and has a preset value. The controller is configured to receive a feedback current through the bird and compare the feedback current to the preset value. When the feedback current exceeds the preset value, the controller controls the conversion circuit to reduce the shock voltage. The controller controls the conversion circuit to increase the electrode voltage when the feedback current is lower than the preset value. The controller controls the conversion circuit to output the electrode voltage when the feedback current is equal to the preset value.

In order to explain in detail the technical features of the present invention, one of the following preferred embodiments will be described with reference to the following drawings, wherein: as shown in the first to third embodiments, an automatic embodiment of the present invention provides an automatic Energy-regulated poultry corona system, including a conveyor 10 and more The power supply device 20 is used to corona the above-mentioned poultry. In this embodiment, the chicken is taken as an example for illustration.

The conveying device 10 is configured to transport a plurality of chickens, and the chickens are respectively hung and fixed on the conveying device 10, and are conveyed to a position of the electric shock with the rail or the conveyor belt of the conveying device. In this embodiment, the conveying device 10 is conveyed by hanging, but in practice, the structure of the conveying device 10 is not limited to the above.

The power supply devices 20 are used to stun the chickens. Each power supply device 20 includes a conversion circuit 21, an electrode group 22a, 22b, and a controller 23. The conversion circuit 21 is connected to a mains 24, and the voltage and frequency values of the mains 24 vary according to each country's power supply standard, and are 110 volts/60 Hz or 220 volts/60 Hz in Taiwan. The conversion circuit 21 is configured to process the commercial power 24 into a shock voltage V. The frequency of the shock voltage V is higher than the frequency of the commercial power 24. Thus, the high frequency voltage can be used to avoid the heartbeat of the chicken when the electric shock is stopped. The electrode group 22a, 22b is connected to the conversion circuit 21 and is configured to receive the shock voltage V. In this embodiment, the electrode 22b is represented by a water tank, and the chicken is transported to the touch device 10 When the position of the electrode group 22a, 22b is set, the chicken is started to be shocked, but if the chicken has not been delivered to the electrode group 22a, 22b, the conversion circuit 21 cannot output the electrode voltage V because the conversion circuit 21 There is no loop formed between the electrode groups 22a and 22b. The controller 23 is connected to the conversion circuit 21 and has a preset value I _d . The controller 23 is configured to receive a feedback current I _f through the chicken, and compare the feedback current I _f with the preset value I _d . In fact, if the controller 23 receives the feedback current I _f , indicating that a chicken is being shocked, and if the controller 23 does not receive the feedback current I _f , it indicates that no chicken is currently being shocked. When the feedback current I _f (for example, 450 mA) exceeds the preset value I _d (for example, 400 mA), the controller 23 controls the conversion circuit 21 to lower the shock voltage V; and the feedback current I _{f is} lower than the preset When the value I _d is set, the controller 23 controls the conversion circuit 21 to increase the shock voltage V. When the feedback current I _f is equal to the preset value I _d , the controller 23 controls the conversion circuit 21 to output the shock voltage. V. Since the impedance of each chicken varies with weight, meat density and nature, the present invention detects the actual value of the feedback current I _f through each chicken to obtain the actual value of each chicken. Impedance, and apply different shock voltage values according to the actual impedance to ensure the complete appearance of each chicken after electric shock and improve the capacity utilization.

In addition, when the chicken that is currently electrocuted is fainted, the faint chicken will be transported by the delivery device 10 to the next program, at which time the controller 23 will return to the original set value to wait. Electric shock hit a chicken.

As shown in the third and fourth figures, the conversion circuit 21 includes a rectifier 25, a DC/DC converter 26, and a DC/AC inverter 27. The rectifier 25 is connected to the mains 24 and is used to rectify the mains 24 into a direct current. The input end of the DC/DC converter 26 is connected to the rectifier 25, and is configured to receive the rectified DC of the rectifier 25, and switch the DC to the high-frequency shock voltage V, the output of the DC/DC converter 26. The DC/AC converter 27 is connected to the terminal. In this embodiment, the DC/DC converter 26 is preferably a Flyback converter that provides advantages such as boost, buck, and reverse polarity. The DC/AC converter 27 is preferably a full bridge converter. Device.

When the feedback current I _f exceeds the preset value I _d , the controller 23 reduces the on-time of the DC/AC converter 27, and thus, the controller 23 directly controls the DC/DC converter 26 to reduce the current. Electric shock voltage V. When the feedback current I _{f is} lower than the preset value I _d , the controller 23 increases the on-time of the DC/AC converter 27, and thus, the controller 23 directly controls the DC/DC converter 26 to improve The shock voltage V. When the feedback current I _f is equal to the preset value I _d , the controller 23 directly outputs the current preset shock voltage V, so the controller 23 does not need to command the conversion circuit 21 to change any output voltage.

The DC/DC converter 26 has a variable resistor 28 for changing the voltage of the shock. Thus, when another type of chicken is to be shocked, the preset electric shock voltage can be increased or decreased by changing the variable resistance value 28.

Preferably, increasing or decreasing the on-time of the DC/AC converter uses PWM technology to control the duty cycle to achieve energy control.

Compared with the prior art, the automatic electric energy regulating poultry corona system of the present invention can adjust the frequency and voltage value of the electric shock voltage for each bird to effectively faint the birds and reduce the damage of the poultry skin.

10‧‧‧Conveyor

20‧‧‧Power supply

21‧‧‧Transition circuit

22a, 22b‧‧‧electrode

23‧‧‧ Controller

24‧‧‧Power

25‧‧‧Rectifier

26‧‧‧DC/DC Converter

27‧‧‧DC/AC Converter

28‧‧‧Variable resistor

I _d ‧‧‧Preset value

I _f ‧‧‧Responsive current

V‧‧‧ electric shock voltage

The first figure is a schematic diagram showing the automatic electric energy regulating poultry corona system of the present invention.

The second figure shows a block diagram of one of the power supply devices in the first figure.

The third figure shows the operation flow chart of the power supply device in the second figure.

The fourth figure shows the circuit diagram of the power supply device in the second figure.

20‧‧‧Power supply

21‧‧‧Transition circuit

22a, 22b‧‧‧electrode

23‧‧‧ Controller

24‧‧‧Power

I _f ‧‧‧Responsive current

V‧‧‧ electric shock voltage

Claims (3)

An automatic electric energy regulating poultry corona system includes: a conveying device for conveying a plurality of birds; and a plurality of power supply devices, each of the power supply devices including a conversion circuit, an electrode group and a controller, the conversion circuit system Connected to a mains supply, and used to process the mains into a shock voltage having a frequency higher than the frequency of the mains. The electrode set is connected to the conversion circuit and is used to receive the electric shock voltage to call the birds. The controller is connected to the conversion circuit and the electrode group, and has a preset value, the controller is configured to receive a feedback current through the bird, and compare the feedback current with the preset value. When the feedback current exceeds the preset value, the controller controls the conversion circuit to reduce the shock voltage. When the feedback current is lower than the preset value, the controller controls the conversion circuit to increase the electrode voltage. When the current is equal to the preset value, the controller controls the conversion circuit to output the electrode voltage. The poultry corona system of claim 1, wherein the conversion circuit comprises a rectifier, a DC/DC converter, and a DC/DC converter, the input of the DC/DC converter. The end is connected to the rectifier, and the output end is connected to the DC/AC converter, and the DC/DC converter is used to switch the DC output of the rectifier to a high frequency shock voltage, wherein the feedback current exceeds the preset At the time of the value, the controller reduces the on-time of the DC/AC converter, and when the feedback current is lower than the preset value, the controller increases the on-time of the DC/AC converter. Automatic energy-regulating poultry as described in claim 2 A corona system, wherein the DC/DC converter has a variable resistor for changing the voltage of the shock.