TW413973B - Controlling method and its apparatus capable of using electricity quantity (power) control to prevent interior of electrical equipment from overheat - Google Patents

Abstract

This invention is about a controlling method and its apparatus capable of using electricity quantity (power) control to prevent interior of electrical equipment from overheat. The method and apparatus of this invention can be used particularly to protect and prevent damages from occurring to the equipment that needs to use temperature to control or protect wherein overheat is related to electric power requirement. The apparatus of this invention includes setting unit, sensing unit, central processing unit, control unit, alarming unit and cut-off protecting unit. The sensing unit is used to proceed temperature detecting for each detected point inside the electrical equipment. A corresponding control signal is outputted to the control unit according to the compared result between the detected value of each detected point and a set value. An unloading or reloading action for the load in the electrical equipment is proceeded by the control unit to protect and prevent electrical equipment from overheat and to ensure that the running function of each detected device can work under a non-overheat and non-aging status to effectively prolong its life.

Description

413973 V. Description of the invention (1) The present invention relates to a control method and device for preventing overheating of the flashing part of electrical equipment by using available power (force) control, thereby protecting the electrical equipment from overheating and causing disasters. Those who ensure that the function of each detected component can perform operations in an overheated, non-aging state and effectively extend its service life. General electrical equipment is damaged due to overheating, even causing disasters. “It is the overheating or overload protection of electrical equipment in the past.” The traditional protection concept is extended. The electrical equipment is forced to be isolated before it exceeds its tolerable limit. In order to achieve a protective effect, the electrical equipment is separated from the power supply system. In fact, during this overheating process, its internal materials have been damaged by overheating and high temperature. After years of age, its materials are likely to lose its protective function due to aging. It has become the cause of severe disasters, such as building fires, etc., and it is often heard that overheating and aging of electrical equipment is one of the main reasons. The picture shows the circuit of common electrical equipment (3) The main circuit (30) T is connected to several shunt circuits (3 1) '(32) (3 3), (3 4) · · · Layout on the circuit There are main circuit switches (3 1) and shunt switches (3 1 1), (3 2 1), (3) on the 3 4 1:, 2 3 2), (3 4 2) ... and other circuit elements are correspondingly connected There are loads (312) (322), (333), (343), etc., etc., as mentioned above, the cause of overheating, aging, and even line disasters in electrical equipment is not limited to the load ( 312), (322, / (333), (343) ..., etc.

Untitled Page 4 413973 Five 'Description of the Invention (2) Such as switches, wires, plugs, etc. are counted as Lei Sheng — 埶, also μ Zhan Ding “Γ and other electrical parts or accessories aging or over: turn into the culprit of an unfortunate event However, for the aging and overheating of various components in electrical equipment, it has always been the protection of imprisoned documents. In view of this, the creator of the present invention has actively researched and developed, and finally: "The creation of the invention", that is, the use of sensing units in the present invention, the cost case ^ ^ ^ • Lizao X orders and controls each detected point in the electric wind equipment, and uses the dish to keep it forever: Day — All the detected pieces of Bao Bao will not be detected, and the protection is achieved. The equipment is protected from indisputable problems such as overheating, burnout, and disasters. The purpose of the present invention is to provide a control method and a device for controlling the available electricity (force) to prevent the internal equipment from overheating or aging, so that Each detected component is protected from overheating or disasters, ensuring the operating function of each element under test, performing operations in an overheated and non-aging state, and effectively extending its service life. The following is provided with the drawings Description The specific examples of the present invention are as follows: [Illustration] The first diagram is a schematic circuit diagram of a conventional electric device. The second diagram is a schematic diagram of the soul of the protection device of the present invention. The third diagram is a control method of the present invention. (C) Flow chart. The fourth diagram is a block diagram of the connection between the protection device of the present invention and the central monitoring room. The fifth diagram is an alarm control flowchart of the alarm unit of the present invention. The sixth diagram is the present invention. The control flow chart of its aging degree. The seventh chart 'is the warning and registration control flow chart of its aging level according to the present invention.

Untitled Page 5 413973 V. Description of the Invention (3) The eighth figure is the circuit (example 1) of the electrical equipment of the present invention. The ninth garden is a circuit embodiment (b) of the electrical equipment of the present invention. The tenth figure is a circuit embodiment (three) of the electrical equipment of the present invention. [Illustration of the drawing number] The device (A), (A1), (A2), (A3) of the present invention. The setting unit (1 1) senses Measuring unit (1 2), sensing element (1 2 1), (1 2 2), (1 2 3), (1 2 4) ..., (129), (130), (13 1), ( 1 3 2) · · Central processing unit (17) Alarm unit (1 4) Power-off protection unit (1 5) Control unit (16), (161), (162), (163 Electrical equipment circuit (3 Main circuit ( 3 0), shunt circuit (3 1)

Main switch (3 0 1), (401) electromagnetic switch (413) '(423), (432) shunt switch (3 1 1), (3 2 1), (3 3 1), (3 4 1), (332), (342) · (41.

Untitled Page 6 413973 Five 'Description of the Invention (4) 1), (421), (431), * * Load (312), (322), (333), (343) ... (412), (422), (433) * * Detection value (TA) Central monitoring room (5) Set temperature values TS (TS1. · .TSn-l'TSn, T S'1, TST2.-TS'-l , TS'n) Power at each level P (PI, P2 *. * Pmin, pi, ρ 2 · · · pMAX) Control method of the present invention (C) Temperature difference between the detected value at each level and the set temperature value △ T (△ T1 · Δ Τη-1'ΛΤη, ΔΤ '1 ·.., ΔΤη-1, ΛΤ'η Detected point G (G 1, G 2. · · G Ν) The aging index value at each level Q ( Qml, Qm2 · Q mn) Total value of aging index QT Set aging index QS Set difference (X) Set coefficient (Y) Set difference (Z) of aging index First please refer to the second and third figures The device of the present invention mainly includes a setting unit (11), a sensing unit (12), a central processing unit (17), an alarm unit (14), and a power failure protection unit.

Untitled page 7 413973 V. Description of the invention (5) (15) and a control unit (16) etc., among them: a setting unit (11), which has the functions of inputting set values and selecting operation modes; The sensing unit (1 2) includes at least one or more sensing elements (1 2 1), (1 2 2), (1 2 3) ··· and has a detection of each detected point G ( G 1, G 2 * ·, GN) its temperature function is mainly based on sensing elements (1 2 1), (122), (1 2 3) ·. · For each detected point G (ie G1, G 2 _ ·. GN, and the detected components can be switches, contacts, wires, loads, etc., depending on the use conditions and requirements) * Do fixed-point temperature detection, and transmit each detection value to A central processing unit (1 7); a central processing unit (17), which is a processing unit containing a control program as a command basis for creating its control method, and the main function of this central processing unit (17) is to After the detection value (TA) input by the sensing unit C 1 2) is compared with the set temperature value (TS) set by the setting unit (1 1), press the control The control method determined by the program outputs a corresponding control signal to the control unit (1 6), alarm unit (1 4), power failure protection unit (1 5); an alarm unit (14), which is the load (412), (422) , (4 3 3) ... When the temperature needs to be unloaded and cooled down, the central processing unit (1 7) can output the warning signals of each stage one by one according to the preset operating modes and conditions, so that the alarm unit (1 4) Issue a warning action; a power failure protection unit (1 5), which is the component of the detected point (G).

Untitled page 8 413973 V. Description of the invention (6) When the temperature reaches the set upper limit, it indicates the temperature rise of the detected component. According to the medium size, it is forced to perform a power-off operation to cause damage due to overheating; a control unit (1 6 ) 'Into the signal to control the wheel load (33), (443) .. * brake load (4 1 2), (42 movement; through the combination of the above components') The sensing unit (1 2) its sensing element ( 123). · *, The central processing unit (17) 'is then replaced by the central processing unit (17 (1 6)), and the control unit (control load (4 1 2), (4 rows of unloading action or reload) When the operating temperature is reached, a warning is issued by the central processing unit (14) to perform a forced power-off protection operation, so as to enable the detected component to have a useful life and to ensure that the component under detection is aged. In addition, the device (1) of the present invention cannot effectively control the output signal of the central processing unit (1 7) after the unloading process to prevent the detected point (G) from losing 4 12 according to the central processing unit (1 7). ), (4 2 2), (4 energy (or power), and borrow Control 2), (433) · * · When the detected component is running, the sensed value (121) '(122)' detected value (Ding A) is transmitted to compare with the set temperature value (TS) ) Output a corresponding signal to the control unit 16) According to this control signal, output the control signal to the alarm 'and power off at 22), (433) --- when the temperature of the detected component reaches its setting (1 7) When the protection unit (1 5) is used to prevent the detected component from overheating, and overheating will occur, thereby improving its operation performance. 'It can not be overheated and cannot be connected to the central monitoring room (5).

Page 9 413973 Five 'Explanation (7) (as shown in the fourth figure), that is, the signal output from the central processing unit (13) is transmitted to the central monitoring room (5) to monitor the operation of the device. As for the sensing elements (121), (122), (123) _ .., the installation position can be installed at an appropriate position on the element of each detected point G (G 1... GN) (to correctly detect Where to measure the temperature of the component body), such as the fixed point position on the motor's housing or the appropriate point embedded in the coil or stator, the contact position of the switch, the power output device ... As mentioned above, the configuration of each detected point G (G 1.. · GN) depends on the requirements and individual conditions of the electrical equipment, and its configuration has approximately the following three basic types: 1 · Detection of a single component (As shown in the eighth figure), this embodiment is mainly connected to the shunt circuits (41), (42), (43) ... under the main circuit (40) in the electrical equipment circuit (4). The sensing element (1 2 1) of the device (A 1) detects the load (4 1 2), that is, the load (4 1 2) is selected as the detected point (G 1), and When the temperature of the detected point is overheating, the load (4 1 2) is taken as the unloaded object. 2. Detection of a single circuit (as shown in the ninth figure). This embodiment mainly detects a single shunt circuit (41) in the electrical equipment circuit (4), and the shunt circuit (4 1) It is equipped with shunt switch (4 1 1), electromagnetic switch (413), load (412) and other components. The sensing elements of this device (1) are (1 2 1), (122), (12 3) '(12 4), make each sensing element (1 2 1) '(12

Untitled page 10 413973

Untitled Page II 413973 V. Description of the invention (9) Mass unloading control, where one of the detection points (G 1 ._ · G 1 2) of a single circuit is overheated, it should be controlled by each corresponding Unit (161 or 162, 163 '_...) performs offload control of its circuit load (412 or 422, 433 ...); if it is the entire circuit (4), its control unit (1 6) is detected An overheating condition at point (G 1 3) indicates that the circuit (4) is overloaded. The control unit (16) should perform unloading control of the entire circuit (4). Regardless of the configuration of the detected points of any of the above types, as long as the detected value (TA) of one of the detection points (G) is overheated or aged, the control unit (16) will follow The control process is described as follows: * The control method (C) is shown in the third figure, which mainly performs the following control: 1. When the detected points G 1, G 2 ·-· GN has a temperature detection value ( TA) When TA> TS 1 + X is reached (TS 1 represents the first set temperature value, X represents the set difference value), that is, the detection value (TA) is greater than the first set temperature value (TS 1) plus the set difference value ( X) indicates that there is a detected component in the detected point (G 1) or (G 2), (G 3) · '· (GN) whose temperature has overheated. The load must be used (412) (422), (433) * ······························· TA, 降低 T 1 > X (△ T 1 represents the detection value TA and The first temperature difference between the first set temperature value TS 1), load (4 1 2) or (4 2 2), (4 3 3) * _ load to the first stage power is P1; 2 · 当 TA — TS2 = △ 丁 2, and △ Τ2 > When ΛΤ1 + ×

Untitled page 12 413973 Five 'invention description (10) ^ " (dings 2, TS 3 .. N set temperature value, ^ second' third · .. unloading to the second stage power is ρ unloading action : .TSn sequentially represents the second, third to third, and ΛΤ3 · · .ΛΤη- 代表 represents the temperature difference between the first and η in sequence), the load continues to 2: and sequentially in accordance with the following conditions, and continues to be TA: At the time of qq, 'continue unloading to 篦 L ^ A ^ > ΔΤ2 + × the second power of the prince is P3; the power is gradually reduced in order until D A — TSll = the load is unloaded to this negative respect, and ΔΤη> △ 丁 η_1 At + χ, TS2, .., the lowest acceptable minimum operating power Pinin, its value, .. · pen Nτ., D n represents the second set temperature a T n / V, N set temperature value, △ T2 '.. · △ Τ η represents the first Δth temperature difference, ρ factory degree difference Λ'.. · Η Δw, 3. Τ Δ wά · pm 1 η represents unloading at each level Phase; time (Ί ~ Τ S'bu AT '1, and M' 1 < ΔΤ, -X Τ Α and repetition represent the first set temperature of reload '△ Τ, 1 represents the measured value indicating the dry = plant setting temperature Value Η'1st-difference value), table) the component temperature has been reduced 'load (412), (422 (such as ^ 4 3 3) ... can be reloaded to the first stage power P1 operation; and according to — The person continues to increase the reload power according to the following conditions: (1) when TA — TS, 2 and ΔΤ, 2 < ΔΤ,

413373 --------------- _ V. Description of the invention (11) 1 When X, the load continues to be reloaded to the second-level power p2; (and the power is increased one by one in order) (2) -1 X (44 pi, p2 above the table, that is 3 3), it has no overheating optimal situation (15 under control 1 · When the internal temperature reporting unit 2 · When the reload increases power Until TA-TS, n, and △ :, η < ΔΤ, η 'Load (412), (422), (433), 3).' Reload to rated maximum operating power p max, of which two · .ρ · max represents the reloading stage at all levels. Yes, it is necessary to test each component (G) whose component temperature exceeds the preset value. Automatic unloading: reduce the load (412), (4 2 2), (4

The operation power is set at the maximum operation that can be maintained at an excessive temperature. Ⅰ; id: A forging detection element reduces the operating power due to automatic unloading ° = 5 ^ ‘automatic reload operation’ causes the detected element to automatically recover the load power under ^ heart-shaped cancer to bring its function to the limit. In the present invention, the alarm unit (14), the power failure protection unit, and the signal output from the central processing unit (1 3) are actuated by K (as shown in the second and fifth figures): > When TS 1 + X, Indicates that the detected point (0) has a component degree that exceeds the setting; w # degrees' must use unloading to reduce the temperature * and issue a stage 4 warning by the police 4); TA > TS2 + Yx (Y represents the set coefficient) ,hair

41397¾ V. Description of the invention (12) Issue the second stage warning; press TA &TS; TS 3 + YX in turn to issue the third stage warning; TA > TSn-1 + YX, issue the (N-1) stage warning; until TA & gt When TSn + YX, the alarm unit (1 4) issues a warning at the final stage, and the power failure protection unit (1 5) forcibly performs power failure protection. In addition, although the detected points (G 1 'G 2... GN) have not been overheated and powered off, they may be damaged due to aging and cannot operate. At this time, the entire electrical equipment and its components will be affected. The normal operation of the connection system causes serious losses. For this reason, another embodiment of the present invention specifically performs an early warning control according to the aging degree as shown in the sixth figure. The control flow is as follows: NN 1 reads Σ Q n = Q t, Q s data (Σ Q η represents the detected element η = 1 η = 1

Untitled page 15 413973 V. Description of the invention (13) The normal operation of the system connected to it, so the central processing unit (1 3) outputs a control signal to the control unit (16), alarm unit (14), power failure protection The unit (1 5) forcibly stops power output and performs a forced shutdown. 3 · When QtSQs or QtSQs + Z, it means that the aging degree setting range is not exceeded, and the operating mode of the electrical equipment is executed according to the steps of the control method (C) of the present invention. As for the alarm unit (1 5) to cooperate with the monitoring of the degree of aging *, and the central processing unit registers the values of the aging index values Q (Qml ^-Qoin) at each level, the operation process is as follows (see the seventh figure): 1 When TA > TS1 + X, issue the first stage warning and register the value of Qml (Qml means D &A; TS 1 + X, the value of the component aging index value of the detected point in the electrical equipment). 2. When TA > TS2 + YX (Y represents the set coefficient), issue the second stage warning and register the value of Qm2 (Qhi2 represents TA > TS 2 + YX, the component aging index of the detected point in the electrical equipment Value) and issue TA &TS; TS 3 + YX in sequence, issue the third stage warning, register the value of Q m3; TA > TSn-l + YX, issue the stage N-1 warning, register the value of Qm (nl) ; Until TA > TSn + YX, the alarm unit (1 4) issues

Untitled Page 16 413973 V. Description of the invention (14) Warning at the final stage, power failure protection is forced by the power failure protection unit (1 5), and the value of Qmn is registered (Qm3, Qai (nl) 'Qmn means each stage The value of the component aging index of the detected point (G). The present invention utilizes temperature detection control to prevent overheating or aging of each detected component, and this technology is used in a wide range of electrical equipment and circuits such as switches, plugs, loads, line contacts, etc. in circuits. The protection effect is very significant. In summary, the present invention can use the power (electricity) unloading control at the initial stage of the temperature rise of the detected component, and perform the unloading action appropriately, which can ensure the operation or equipment, and can be performed under the condition of not overheating and not aging. Acting and effectively extending its service life.

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Claims (1)

413973 VI. Heat (set the load (the value of the first-level value is followed by 4 2 (different from the scope of the patent application 1) a control method to prevent electricity by using available power (force), mainly based on the 4 instructions in the central processing unit The steps are as follows: The control program is 1) When the detection value (τ A) is greater than the first set value (the value of the fixed difference (X) (that is, TA > Ts l)), it is added to the first stage power (P1);), load unloading 2) When the debt measurement value (TA) is subtracted from the second set value: difference :: △ "), and the second temperature difference (于: at the stage power (P2), and according to Sequentially unloading to the first set temperature value <:TS; 3, '(Ta) minus each (△ T3, Bu ", · TS" equals the temperature difference at each level (Δ T 3'.. Λ Ατη), and The temperature difference of each stage plus the set difference of the stage (χ) ~ 、, ^ 711) is greater than the minimum operating power (P.2 'unloaded to the load in order according to the stage 3) as the detection level. Value (τ A), 泣 4 & '" is equal to the first difference of the cropping-the set temperature value (TS △ τ' 1) is less than the temperature difference (ΔΤ reloading temperature difference When the value is the same, the power of the load is reset to ΔΤ 1). The difference between the two values (x ^ η (TA) minus the set temperature value (Ts..TSn) of each level is equal to the temperature difference (△ D, * Δ T nl 'Δ Τ' n), and the re-loading temperature difference of each stage △ 2,, .ΔT '.!, △ D' ') is less than the temperature value of the previous stage minus the set difference of the stage ( X) when the value is ΙϋΗ Untitled Page 18 413973 VI. Patent Application Range Rated Maximum Operating Power (P · max). 2. As described in item 1 of the scope of the patent application, "A control method to prevent overheating inside electrical equipment by using available power (force) control", the operation process of its alarm unit is as follows: (1) When the detection value (TA) When it is greater than the first set temperature value (TS1) plus the set difference value (X), the first stage warning is issued by the alarm unit; (2) When the detection value (TA) is greater than the second set temperature value (TS2) plus the setting When the coefficient is multiplied by the value of the set difference (X), the alarm unit issues a second-stage warning, and the detected value (TA) is successively greater than the set temperature value of each level (TS 3 ·, SSn-1 ... SSn) When the setting coefficient is multiplied by the value of the set difference (Z), the alarm unit will issue warnings at each stage in sequence. Until the warning at the final stage is issued, the power failure protection unit will forcibly power off and stop the load. 3. For example, "a control method of available power (force) control to prevent overheating inside electrical equipment" in the scope of patent application, in order to achieve early warning control of the aging degree of each detected component, the control process is as follows: (1) Read the total value of each aging index value of each detected component in the electrical equipment CQt) 'When the total value (Qt) is greater than the set value (Qs)', the aging warning is issued by the alarm unit; (2) When the total value (Qt) of the aging index value is greater than the set value (qs) plus the set value (Z), the central processing unit outputs a control signal to unnamed 413973 Λ_Please outline ® ~ · 一-~ · f system premature 'Alarm unit, power failure protection unit' Forcibly stop power output and do shutdown disposal. 4. A device that can use electric power (force) control to prevent internal heat in electrical equipment 'mainly includes a setting unit, a sensing unit, a sensor, an alarm unit, a power failure protection unit, a control unit, etc .: acheng, Among them: 1 a setting unit, which has the ability to enter set values and select the operating mode;… Knife & a sensing unit, which contains the function of a sensing element and has a temperature function mainly to sense the unit The device performs fixed-point temperature detection on the components of each detected point and transmits the measured value to the central processing unit. A central processing unit is a processing unit containing a control program, which is mainly based on the input detection value. After comparing with the set value, output — corresponding control signal to the control unit, alarm unit and power failure protection unit; an alarm unit, when the load needs to be unloaded and cooled down, it can be processed by the central according to the preset temperature set value The unit will turn out the warning signals of each stage one by one in time and issue warning actions; a power failure protection unit, when the component temperature of the detected point reaches the set upper limit, the receiving center The control unit controls the signal to force the power to act on the load. A control unit controls the energy or power input to the load according to the signal input from the central processing unit and controls the operation of the load. The combination of the above components enables the protection device to According to the comparison result between the detected value and the set value, a corresponding control signal is output to the control unit. Untitled page 20 413973 VI. Patent application scope Controls the timing of unloading to control the operation of the load, effectively extending its service life. 5. As described in item 4 of the scope of patent application, "a kind of available power (force) control to prevent "The device is too hot inside the electrical equipment", where the device can be connected to a central monitoring room, that is, the signal output by the central processing unit can be transmitted to the central monitoring room to monitor the operation of the device. Untitled Page 21