Recoverable temperature protection switch electric control system

Abstract

The invention discloses a recoverable temperature protection switch electric control system. Comprising a temperature control assembly 10 arranged between a positive electrode and a negative electrode of a power supply 20; the solid state timer 30 comprises a timer switch 301 and an oscillation source 302, the timer switch 301 is connected between the positive electrode of the power supply 20 and the temperature control assembly 10 in series, the timer switch 301 and the temperature control assembly 10 form a series branch, and the oscillation source 302 is connected with the series branch in parallel; the intermediate relay 40 comprises a first relay switch 4011, a second relay switch 4012 and a relay coil 402, the first relay switch 4011 is connected with the timer switch 301 in parallel, the second relay switch 4012 is arranged between the power supply input end 501 and the power supply output end 502, and the relay coil 402 is connected between the negative electrode of the power supply 20 and the temperature control assembly 10 in series. The power supply output end 502 is used for being connected with a load. According to the invention, the problem that the temperature control device needs to be replaced again after the over-temperature condition of the temperature control and power control system is relieved in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic circuits, and in particular to a recoverable temperature protection switch electric control system. Background Art

[0002] In the field of biotechnology, the preparation of gene chips requires the use of a preparation reaction platform for sample preparation. However, since the preparation reaction platform has high temperature requirements, when the platform has an over-temperature abnormality, it will have a significant impact on the preparation process. Therefore, how to achieve precise temperature control of the preparation reaction platform is an urgent problem to be solved.

[0003] In the related art, a temperature control and electrical control system is usually used to achieve temperature control operations on the preparation reaction platform. However, since the temperature control switch in the electrical control system is a one-time and irreversible switch, a new temperature control switch needs to be replaced each time a temperature control operation is achieved. In addition, the replacement process frequently involves disassembly and assembly operations of electronic components, which can easily affect the electrical control system and thus have a significant impact on the temperature control effect of the equipment.

[0004] With regard to the problem in the related art that the temperature control and electrical control system needs to replace the temperature control components after the over-temperature condition is resolved, no effective solution has been proposed yet. Summary of the invention

[0005] The present invention provides a recoverable temperature protection switch electric control system to solve the problem in the related art that the temperature control device needs to be replaced after the over-temperature condition is relieved in the temperature control electric control system.

[0006] According to one aspect of the present invention, a recoverable temperature protection switch electronic control system is provided. The recoverable temperature protection switch electronic control system includes: a temperature control component, which is arranged between the positive and negative poles of a power supply; a solid-state timer, which includes a timer switch and an oscillation source, the timer switch is connected in series between the positive pole of the power supply and the temperature control component, the timer switch and the temperature control component form a series branch, and the oscillation source is connected in parallel with the series branch; an intermediate relay, which includes a first relay switch, a second relay switch and a relay coil, the first relay switch and the timer switch are connected in parallel, the second relay switch is arranged between the power supply input end and the power supply output end, the relay coil is connected in series between the negative pole of the power supply and the temperature control component, and the power supply output end is used to connect a load.

[0007] Optionally, the solid-state timer is in a normally closed state, and when power is supplied, the oscillation source starts timing, and when the timing time of the oscillation source is less than a preset time, the timer switch remains in a closed state.

[0008] Optionally, the solid-state timer is in a normally closed state, and when power is supplied, the oscillation source starts timing, and when the timing time of the oscillation source is greater than or equal to a preset time, the timer switch is disconnected.

[0009] Optionally, the temperature control component is in a normally closed state, and when the temperature in the series branch is lower than a preset temperature, the temperature control component remains in a closed state.

[0010] Optionally, the temperature control component is in a normally closed state, and when the temperature in the series branch is greater than or equal to a preset temperature, the temperature control component is disconnected.

[0011] Optionally, the temperature control component is in a normally closed state, and when the temperature in the series branch changes from a state greater than or equal to a preset temperature to a state less than or equal to a preset temperature, the temperature control component returns to a closed state.

[0012] Optionally, the first relay switch is in a normally open state. When the power supply is on, if the timer switch and the temperature control component are in a closed state, the power supply charges the relay coil and the first relay switch is closed.

[0013] Optionally, when the power supply is on, if the temperature control component is disconnected, the relay coil loses power and the first relay switch is disconnected.

[0014] Optionally, the temperature control component includes a temperature control switch, or a plurality of temperature control switches connected in series.

[0015] Optionally, when the first relay switch is closed, the second relay switch is closed, and when the first relay switch is opened, the second relay switch is opened.

[0016] Optionally, the device further comprises: a relay base, in which a power cord is arranged, and the power cord is connected to a power source, wherein the solid-state timer and / or the intermediate relay is connected to the power cord via a preset interface on the relay base.

[0017] The present invention adopts: a temperature control component, which is arranged between the positive electrode and the negative electrode of a power supply; a solid-state timer, which includes a timer switch and an oscillation source, the timer switch is connected in series between the positive electrode of the power supply and the temperature control component, the timer switch and the temperature control component form a series branch, and the oscillation source is connected in parallel with the series branch; an intermediate relay, which includes a first relay switch, a second relay switch and a relay coil, the first relay switch and the timer switch are connected in parallel, the second relay switch is arranged between the power supply input end and the power supply output end, the relay coil is connected in series between the negative electrode of the power supply and the temperature control component, wherein the power supply output The end is used to connect the load, which solves the problem in the related art that the temperature control device needs to be replaced after the over-temperature condition is removed in the temperature control electric control system. By connecting the solid-state timer, the temperature control component and the intermediate relay to the recoverable temperature protection switch electric control system, the temperature control component remains in a normally closed state, the timer switch of the solid-state timer remains closed within the preset time, the relay coil is charged, the circuit is connected, and the timer switch of the solid-state timer is disconnected after exceeding the preset time. Under the over-temperature condition, the temperature control component is disconnected, the relay coil loses power, the circuit is connected, and the recoverable temperature protection switch electric control system is restarted after the over-temperature condition is removed. Thus, the effect of protecting the electronic devices in the recoverable temperature protection switch electric control system while reducing the number of times the electronic devices are replaced is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 is a schematic diagram of a recoverable temperature protection switch electric control system provided according to an embodiment of the present invention;

[0020] Figure 2 The working diagram of the recoverable temperature protection switch electric control system provided by the embodiment of the present invention is as follows: Figure 1 ;

[0021] Figure 3 The working diagram of the recoverable temperature protection switch electric control system provided by the embodiment of the present invention is as follows: Figure 2 ;

[0022] Figure 4 The working diagram of the recoverable temperature protection switch electric control system provided by the embodiment of the present invention is as follows: Figure 3 ;

[0023] Figure 5 The working diagram of the recoverable temperature protection switch electric control system provided by the embodiment of the present invention is as follows: Figure 4 .

[0024] Among them, 10, temperature control component; 20, power supply; 30, solid-state timer; 301, timer switch; 302, oscillation source; 40, intermediate relay; 4011, first relay switch; 4012, second relay switch; 402, relay coil; 501, power supply input terminal; 502, power supply output terminal. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged under appropriate circumstances to facilitate the embodiments of the present invention described herein.

[0028] Based on this, the present application hopes to provide a solution that can solve the above-mentioned technical problems, the details of which will be described in the subsequent embodiments.

[0029] According to an embodiment of the present invention, a recoverable temperature protection switch electric control system is provided.

[0030] Figure 1 is a schematic diagram of a recoverable temperature protection switch electric control system provided according to an embodiment of the present invention. Figure 1 As shown, the recoverable temperature protection switch electric control system includes:

[0031] The temperature control component 10 is arranged between the positive electrode and the negative electrode of the power source 20 .

[0032] Specifically, the power supply 20 can be a DC power supply 20. The discharge voltage generated by the power supply 20 can be determined according to the specification parameters of the electronic components set in the recoverable temperature protection switch electronic control system. The power supply 20 is used to power the equipment connected to the recoverable temperature protection switch electronic control system when the recoverable temperature protection switch electronic control system is turned on.

[0033] The temperature control assembly 10 refers to one or more control electronic components that form deformation inside the switch according to the temperature change of the working environment, thereby generating a conduction or disconnection action.

[0034] When the temperature control component 10 is installed in the recoverable temperature protection switch electronic control system, the temperature in the environment is sampled by the temperature sensor in the temperature control component 10, and the sampled temperature is immediately detected. When the temperature in the environment is higher than the preset temperature of the temperature control component 10, the switch inside the temperature control component 10 is disconnected, thereby cutting off the circuit to achieve over-temperature protection; when the temperature in the environment is lower than the preset temperature of the temperature control component 10, that is, when the over-temperature condition is lifted, the switch inside the temperature control component 10 returns to the normally closed state.

[0035] It should be noted that, since a disposable fuse is set in the electronic control system of the recoverable temperature protection switch in the related technology, when the fuse blows because the ambient temperature is greater than the preset temperature, the circuit is disconnected. If the circuit needs to be restarted for power control operation, the blown fuse needs to be replaced.

[0036] Therefore, in order for the equipment connected to the recoverable temperature protection switch electronic control system to operate normally, the recoverable temperature protection switch electronic control system needs to have an over-temperature power-off protection function, and after the over-temperature condition is removed, the temperature control device needs to be able to automatically restore the connection state to avoid repeated replacement of control electronic components. Therefore, the temperature control component 10 of the recoverable temperature protection switch electronic control system of this embodiment can be a self-recovering normally closed temperature control switch. By using this temperature control switch as the temperature control component 10, when the over-temperature condition in the environment is removed, there is no need to replace electronic components or disassemble and assemble the equipment, thereby reducing the installation risk and manpower of the circuit.

[0037] The solid-state timer 30 includes a timer switch 301 and an oscillation source 302. The timer switch 301 is connected in series between the positive pole of the power supply 20 and the temperature control component 10. The timer switch 301 and the temperature control component 10 form a series branch, and the oscillation source 302 is connected in parallel with the series branch.

[0038] Specifically, the solid-state timer 30 refers to an electronic device with a timing function composed of a timer switch 301 and an oscillating source 302. The timer switch 301 in the solid-state timer 30 realizes the timing function by setting a preset time. For example, the preset time can be 2 seconds, and the oscillating source 302 connected to the timer switch 301 counts by gear rotation or integrated circuit frequency division. When the time accumulates to 2 seconds, the timing is completed, and the timer switch 301 switches its contact state.

[0039] It should be noted that a solid-state timer 30 is provided in the recoverable temperature protection switch electrical control system, and the solid-state timer 30 is connected in series between the power supply 20 and the temperature control component 10. The temperature control component 10 remains in a normally closed state, and the solid-state timer 30 is used to connect the line when the electrical control device is started.

[0040] The intermediate relay 40 includes a first relay switch 4011, a second relay switch 4012 and a relay coil 402. The first relay switch 4011 and the timer switch 301 are connected in parallel. The second relay switch 4012 is arranged between the power supply input terminal 501 and the power supply output terminal 502. The relay coil 402 is connected in series between the negative pole of the power supply 20 and the temperature control component 10, wherein the power supply output terminal 502 is used to connect the load.

[0041] Specifically, the intermediate relay 40 is an electronic device used to control a small-capacity motor or other electrical actuator, and is used to control the connection or disconnection of the line of the recoverable temperature protection switch electronic control system. It can include multiple relay switches. For example, in this embodiment, the intermediate relay 40 includes a relay coil 402, a first relay switch 4011 and a second relay switch 4012.

[0042] Furthermore, after the first relay switch 4011 of the intermediate relay 40 is connected in parallel with the timer switch 301, a parallel branch is obtained, and the parallel branch is connected in series with the first relay switch 4011 of the intermediate relay 40 and the temperature control component 10. The temperature control component 10 remains in a normally closed state, and the solid-state timer 30 remains in a closed state within a preset time, so that the relay coil 402 is energized, so that the recoverable temperature protection switch electronic control system forms a circuit self-locking state, that is, the control circuit remains in a continuous energized state, thereby realizing power supply control of the equipment connected to the recoverable temperature protection switch electronic control system.

[0043] It should be noted that the circuit where the first relay switch 4011 is located is independent of the circuit where the second relay switch 4012 is located. The two circuits are connected by the relay coil 402. The second relay switch 4012 is set between the power supply input terminal 501 and the power supply output terminal 502. The voltage value output by the power supply input terminal 501 can be greater than the voltage value output by the power supply 20.

[0044] Optionally, in the recoverable temperature protection switch electronic control system provided in an embodiment of the present invention, when the first relay switch 4011 is closed, the second relay switch 4012 is closed, and when the first relay switch 4011 is opened, the second relay switch 4012 is opened.

[0045] Specifically, the first relay switch 4011 and the second relay switch 4012 are associated with the relay coil. When the relay coil 402 is charged, the two relay switches associated with the relay coil are closed; when the relay coil 402 loses power, the two relay switches associated with the relay coil are disconnected. When the second relay switch 4012 is closed, the circuit between the power supply input terminal 501 and the power supply output terminal 502 is connected, and the load connected to the power supply output terminal 502 is energized, so that the load can work. When the second relay switch 4012 is disconnected, the circuit between the power supply input terminal 501 and the power supply output terminal 502 is disconnected, and the load connected to the power supply output terminal 502 loses power, and the load stops working.

[0046] The state of the timer switch 301 is determined by the oscillation source 302. Optionally, in the recoverable temperature protection switch electronic control system provided in an embodiment of the present invention, the solid-state timer 30 is in a normally closed state. When the power supply 20 is powered, the oscillation source 302 starts timing, and when the timing time of the oscillation source 302 is less than the preset time, the timer switch 301 remains in a closed state.

[0047] Specifically, after the solid-state timer 30 is installed in the recoverable temperature protection switch electronic control system, the timer switch 301 of the solid-state timer 30 can be set as a normally closed switch, and the recoverable temperature protection switch electronic control system is powered by the power supply 20. When the current flows through the solid-state timer 30, the oscillator source 302 therein starts timing by rotating the gear or counting the frequency division of the integrated circuit. When the timing time of the oscillator source 302 is less than the preset time in the timer switch 301, the timer switch 301 remains in a closed state. For example, the timing device of the timer switch 301 is set to a preset time of 2 seconds. When the current is energized and the current flows to the oscillator source 302, the oscillator source 302 starts the timing function, and the timer switch 301 is in a closed state within 0-2 seconds.

[0048] The state of the timer switch 301 is determined by the oscillation source 302. Optionally, in the recoverable temperature protection switch electronic control system provided in an embodiment of the present invention, the solid-state timer 30 is in a normally closed state. When the power supply 20 is powered, the oscillation source 302 starts timing, and when the timing time of the oscillation source 302 is greater than or equal to the preset time, the timer switch 301 is disconnected.

[0049] Specifically, when the power control device is powered by the power supply 20 and the timing time of the oscillation source 302 is greater than or equal to the preset time, the timer switch 301 changes from a closed state to an open state, and the timer switch 301 continues to remain in the open state. For example, the preset time is 2 seconds, and when the timing time of the oscillation source 302 is greater than 2 seconds, the timer switch 301 is open.

[0050] The on / off state of the temperature control component 10 is determined by the temperature of the branch in which it is located. Optionally, in the recoverable temperature protection switch electronic control system provided in an embodiment of the present invention, the temperature control component 10 is in a normally closed state. When the temperature in the series branch is lower than a preset temperature, the temperature control component 10 remains in a closed state.

[0051] Specifically, when the temperature control component 10 is installed in the recoverable temperature protection switch electronic control system, the switch state of the temperature control component 10 is normally closed. When the power supply 20 is used to start powering, as the power supply 20 continues to supply power, the temperature in the recoverable temperature protection switch electronic control system gradually increases. The electronic components in the recoverable temperature protection switch electronic control system have a corresponding safe operating temperature, and the upper limit of the safe operating temperature is determined as the preset temperature of the temperature control component 10. When the temperature sensor in the temperature control component 10 detects that the temperature in the recoverable temperature protection switch electronic control system is still lower than the preset temperature of the temperature control component 10, the temperature control component 10 remains in the closed state.

[0052] The on / off state of the temperature control component 10 is determined by the temperature of the branch in which it is located. Optionally, in the recoverable temperature protection switch electronic control system provided in an embodiment of the present invention, the temperature control component 10 is in a normally closed state. When the temperature in the series branch is greater than or equal to a preset temperature, the temperature control component 10 is disconnected.

[0053] Specifically, since heat is generated when current flows through the power cord and electronic devices, as the power supply time of the power supply 20 increases, the temperature in the circuit will gradually increase, and may even exceed the preset temperature. When the temperature sensor of the temperature control component 10 detects that the temperature of the recoverable temperature protection switch electronic control system is greater than or equal to the preset temperature of the temperature control component 10, the temperature control sensor sends a command to the temperature control component 10, and the switch of the temperature control component 10 changes from a closed state to an open state.

[0054] When the recoverable temperature protection switch electronic control system stops working, the temperature will gradually drop. Optionally, in the recoverable temperature protection switch electronic control system provided in an embodiment of the present invention, when the temperature in the series branch is converted from a state greater than or equal to a preset temperature to a state less than or equal to a preset temperature, the temperature control component 10 returns to a closed state.

[0055] Specifically, when the temperature sensor of the temperature control component 10 detects that the temperature in the recoverable temperature protection switch electronic control system is greater than or equal to the preset temperature of the temperature control component 10, the switch of the temperature control component 10 is in the disconnected state. Since the temperature control component 10 is connected in series in the recoverable temperature protection switch electronic control system, when the temperature control component 10 is disconnected, the circuit is open. At this time, the power supply 20 stops supplying power to the equipment connected to the recoverable temperature protection switch electronic control system.

[0056] Furthermore, when no current flows in the electronic control system of the recoverable temperature protection switch, the power cord and the electronic components stop generating heat, and the temperature of the circuit gradually decreases. When the temperature sensor of the temperature control component 10 detects that the temperature in the electronic control system of the recoverable temperature protection switch drops from a preset temperature or higher to a preset temperature or lower, the temperature control sensor sends a command to the temperature control component 10, and the switch of the temperature control component 10 changes from an open state to a closed state.

[0057] The state of the first relay switch 4011 is determined by the power supply state of the relay coil 402. Optionally, in the recoverable temperature protection switch electronic control system provided in an embodiment of the present invention, the first relay switch 4011 is in a normally open state. When the power supply 20 is powered, if the timer switch 301 and the temperature control component 10 are in a closed state, the power supply 20 charges the relay coil 402 and the first relay switch 4011 is closed.

[0058] Specifically, the first relay switch 4011 is set in the recoverable temperature protection switch electronic control system. When the relay coil 402 associated with the first relay switch 4011 is in a power-off state, the first relay switch 4011 remains disconnected. When the power supply 20 supplies power to the recoverable temperature protection switch electronic control system, the power supply 20 will supply power to the series branch composed of the normally closed timer switch 301, the normally closed temperature control component 10 and the relay coil 402. When the relay coil 402 is charged, the first relay switch 4011 changes from an open state to a closed state.

[0059] The state of the first relay switch 4011 is determined by the power supply state of the relay coil 402. Optionally, in the recoverable temperature protection switch electronic control system provided in an embodiment of the present invention, when the power supply 20 is powered, if the temperature control component 10 is disconnected, the relay coil 402 loses power and the first relay switch 4011 is disconnected.

[0060] Specifically, when the power supply 20 continuously supplies power to the series branch consisting of the timer switch 301 in the normally closed state, the temperature control component 10 in the normally closed state, and the relay coil 402, as the temperature in the series branch increases to a preset temperature or exceeds the preset temperature, the temperature control component 10 in the series branch changes from a closed state to an open state, and the series branch also changes from a passage to an open circuit. At this time, the power supply 20 can no longer charge the relay coil 402. After the relay coil 402 loses power, the first relay switch 4011 associated with the relay coil 402 changes from a closed state to an open state.

[0061] Optionally, in the recoverable temperature protection switch electric control system provided in the embodiment of the present invention, the temperature control component 10 includes one temperature control switch, or a plurality of temperature control switches connected in series.

[0062] Specifically, in order to prevent the temperature control switch in the recoverable temperature protection switch electronic control system from failing, when the temperature in the recoverable temperature protection switch electronic control system is greater than the preset temperature of the temperature control component 10, the circuit is not disconnected in time, so that the relay coil 402 always remains energized. If the temperature in the circuit continues to rise, the first relay switch 4011 of the intermediate relay 40 and the solid-state timer 30 will fail. If the temperature in the circuit rises to a certain temperature, the relay coil 402 will fail, thereby affecting the related preparation work connected to the relay coil 402. Therefore, multiple temperature control switches can be connected in series in the recoverable temperature protection switch electronic control system. When one temperature control switch fails, the other temperature control switches can be disconnected in time to prevent the electronic components in the recoverable temperature protection switch electronic control system from being damaged due to excessive temperature.

[0063] In order to facilitate the replacement of electronic components in the recoverable temperature protection switch electronic control system, optionally, the recoverable temperature protection switch electronic control system provided in the embodiment of the present invention also includes: a relay base, a power cord is arranged in the relay base, and the power cord is connected to the power supply 20, wherein the solid-state timer 30 and / or the intermediate relay 40 are connected to the power cord via a preset interface on the relay base.

[0064] Specifically, the relay base refers to an electronic device used to fix the solid-state timer 30 and the intermediate relay 40, including multiple preset interfaces, one end of the preset interface is connected to the power cord, and the solid-state timer 30 or the intermediate relay 40 is connected to the other end of the different preset interfaces by insertion to achieve the connection between the solid-state timer 30 or the intermediate relay 40 and the power cord. When the solid-state timer 30 and the intermediate relay 40 are connected and the power supply 20 is turned on, the DC power supply supplies power to the solid-state timer 30 and the intermediate relay 40 through the power cord of the relay base.

[0065] The recoverable temperature protection switch electric control system provided by the embodiment of the present invention is arranged between the positive and negative poles of the power supply 20 through the temperature control component 10; the solid-state timer 30, the solid-state timer 30 includes a timer switch 301 and an oscillation source 302, the timer switch 301 is connected in series between the positive pole of the power supply 20 and the temperature control component 10, the timer switch 301 and the temperature control component 10 constitute a series branch, and the oscillation source 302 is connected in parallel with the series branch; the intermediate relay 40, the intermediate relay 40 includes a first relay switch 4011 and a relay coil 402, the first relay switch 4011 and the timer switch 301 are connected in parallel, and the relay coil 402 is connected in series between the negative pole of the power supply 20 and the temperature control component 10, which solves the problem in the related art that the temperature control electric control system is released The problem of the need to replace the temperature control device after an over-temperature condition occurs is solved by connecting the solid-state timer 30, the temperature control component 10 and the intermediate relay 40 to the recoverable temperature protection switch electronic control system. The temperature control component 10 remains in a normally closed state, the timer switch 301 of the solid-state timer 30 remains closed within a preset time period, the relay coil 402 is charged, and the circuit is connected. The timer switch 301 of the solid-state timer 30 is disconnected after the preset time period has expired. Under the over-temperature condition, the temperature control component 10 is disconnected, the relay coil 402 loses power, and the circuit is connected. The recoverable temperature protection switch electronic control system is restarted after the over-temperature condition is removed, thereby achieving the effect of protecting the electronic components in the recoverable temperature protection switch electronic control system while reducing the number of times the electronic components are replaced.

[0066] The working principle of the recoverable temperature protection switch electric control system of this embodiment is described below:

[0067] Figure 2 The working diagram of the recoverable temperature protection switch electric control system provided by the embodiment of the present invention is as follows: Figure 1 ,like Figure 2 As shown, an intermediate relay 40, a solid-state timer 30 and a temperature control component 10 are installed in the recoverable temperature protection switch electronic control system, and the timer switch 301 of the solid-state timer 30 is connected in series between the positive pole of the power supply 20 and the temperature control component 10, the relay coil 402 of the intermediate relay 40 is connected in series between the negative pole of the power supply 20 and the temperature control component 10, and the first relay switch 4011 and the timer switch 301 are connected in parallel.

[0068] When the power supply 20 starts to discharge and the timing time of the oscillation source 302 associated with the solid-state timer 30 has not reached the preset time, the current will flow through the series branch composed of the timer switch 301 in the closed state, the temperature control component 10 in the closed state and the relay coil 402. At this time, the electric energy generated by the power supply 20 will charge the relay coil 402. When the relay coil 402 is in the charging state, the first relay switch 4011 associated with the relay coil 402 will be converted from the normally open state to the closed state. At this time, the recoverable temperature protection switch electronic control system is turned on.

[0069] Figure 3 The working diagram of the recoverable temperature protection switch electric control system provided by the embodiment of the present invention is as follows: Figure 2 ,like Figure 3 As shown, when the power supply 20 continues to discharge and the timing time of the oscillation source 302 associated with the solid-state timer 30 is greater than or equal to the preset time, the timer switch 301 is changed from a closed state to an open state. Since the first relay switch 4011 connected in parallel with the timer switch 301 is in a closed state, the circuit is still turned on at this time, and the current will pass through the series branch formed by the first relay switch 4011, the temperature control component 10 and the relay coil 402 to continuously charge the relay coil 402.

[0070] Figure 4 The working diagram of the recoverable temperature protection switch electric control system provided by the embodiment of the present invention is as follows: Figure 3 ,like Figure 4 As shown, when the power supply 20 is continuously discharged, the current flows through the conductor to generate heat. As the power supply time of the power supply 20 increases, the temperature in the recoverable temperature protection switch electronic control system will gradually increase, and even reach a preset temperature (the upper limit of the safe operating temperature of the electronic components in the recoverable temperature protection switch electronic control system). When the temperature sensor of the temperature control component 10 detects that the temperature in the recoverable temperature protection switch electronic control system is greater than or equal to the preset temperature of the temperature control component 10, the temperature control component 10 changes from a closed state to an open state. At this time, the series branch composed of the first relay switch 4011, the temperature control component 10 and the relay coil 402 is in an open circuit state, and the series branch composed of the timer switch 301, the temperature control component 10 and the relay coil 402 is also in an open circuit state. The power supply 20 can no longer charge the relay coil 402. When the relay coil 402 is powered off, the associated first relay switch 4011 is changed from a closed state to an open state, and the recoverable temperature protection switch electronic control system stops working.

[0071] Figure 5 The working diagram of the recoverable temperature protection switch electric control system provided by the embodiment of the present invention is as follows: Figure 4 ,like Figure 5As shown, when no current flows in the open circuit, the power cord made of conductors and the electronic devices will stop generating heat. At this time, the temperature of the circuit will drop from greater than or equal to the preset temperature to less than the preset temperature. At this time, the switch of the temperature control component 10 changes from the open state to the closed state again, but because the time occupied by the heat dissipation process is much longer than the preset time set by the solid-state timer 30, the timer switch 301 is in the open state at this time, and the power supply 20 cannot charge the relay coil 402, then the first relay switch 4011 is in the open state, and the series branch composed of the first relay switch 4011, the temperature control component 10 and the relay coil 402 and the series branch composed of the timer switch 301, the temperature control component 10 and the relay coil 402 are still in the open circuit state, and the recoverable temperature protection switch electronic control system is still in a stopped working state.

[0072] It should be noted that if the recoverable temperature protection switch electronic control system needs to be started, the power supply 20 needs to be turned off and then restarted, and the solid-state timer 30 needs to be restarted so that the oscillation source 302 of the solid-state timer 30 can be re-timed. At this time, the power supply 20 starts to discharge again, and the recalculated timing time of the oscillation source 302 associated with the solid-state timer 30 has not reached the preset time. The current will flow through the series branch formed by the closed timer switch 301, the closed temperature control component 10 and the relay coil 402. The power supply 20 will recharge the relay coil 402. At this time, the recoverable temperature protection switch electronic control system can output electrical energy smoothly and provide electrical energy for the equipment connected to the recoverable temperature protection switch electronic control system.

[0073] Through this embodiment, the solid-state timer 30, the temperature control component 10 and the intermediate relay 40 are connected to the recoverable temperature protection switch electronic control system. By utilizing the on and off states of the solid-state timer 30, the temperature control component 10 and the intermediate relay 40, the circuit is turned on and off, thereby achieving the effect of protecting the electronic components in the recoverable temperature protection switch electronic control system while reducing the number of times the electronic components are replaced.

[0074] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A recoverable temperature protection switch electronic control system, characterized in that: include: A temperature control component (10) is arranged between the positive electrode and the negative electrode of the power source (20); A solid-state timer (30), the solid-state timer (30) comprising a timer switch (301) and an oscillation source (302), the timer switch (301) being connected in series between the positive electrode of the power source (20) and the temperature control component (10), the timer switch (301) and the temperature control component (10) forming a series branch, and the oscillation source (302) being connected in parallel to the series branch; An intermediate relay (40), the intermediate relay (40) comprising a first relay switch (4011), a second relay switch (4012) and a relay coil (402), the first relay switch (4011) and the timer switch (301) being connected in parallel, the second relay switch (4012) being arranged between a power supply input terminal (501) and a power supply output terminal (502), the relay coil (402) being connected in series between a negative electrode of the power supply (20) and the temperature control component (10), wherein the power supply output terminal (502) is used to connect a load.

2. The recoverable temperature protection switch electric control system according to claim 1 is characterized in that: The solid-state timer is in a normally closed state. When the power source (20) is powered, the oscillation source (302) starts timing, and when the timing time of the oscillation source (302) is less than a preset time, the timer switch (301) remains in a closed state.

3. The recoverable temperature protection switch electric control system according to claim 1 is characterized in that: The solid-state timer is in a normally closed state. When the power source (20) is powered, the oscillation source (302) starts timing, and when the timing time of the oscillation source (302) is greater than or equal to a preset time, the timer switch (301) is disconnected.

4. The recoverable temperature protection switch electric control system according to claim 1, characterized in that: The temperature control component (10) is in a normally closed state, and when the temperature in the series branch is lower than a preset temperature, the temperature control component (10) remains in a closed state.

5. The recoverable temperature protection switch electric control system according to claim 1, characterized in that: The temperature control component (10) is in a normally closed state, and when the temperature in the series branch is greater than or equal to a preset temperature, the temperature control component (10) is disconnected.

6. The recoverable temperature protection switch electric control system according to claim 5, characterized in that: When the temperature in the series branch changes from a state greater than or equal to the preset temperature to a state less than or equal to the preset temperature, the temperature control component (10) returns to a closed state.

7. The recoverable temperature protection switch electric control system according to any one of claims 1 to 6, characterized in that: The first relay switch (4011) is in a normally open state. When the power supply (20) is powered, if the timer switch (301) and the temperature control component (10) are in a closed state, the power supply (20) charges the relay coil (402) and the first relay switch (4011) is closed.

8. The recoverable temperature protection switch electric control system according to any one of claims 1 to 6, characterized in that: When the power source (20) is powered, if the temperature control component (10) is disconnected, the relay coil (402) loses power and the first relay switch (4011) is disconnected.

9. The recoverable temperature protection switch electric control system according to claim 1, characterized in that: The temperature control component (10) comprises a temperature control switch, or a plurality of temperature control switches connected in series.

10. The recoverable temperature protection switch electric control system according to claim 1, characterized in that: When the first relay switch (4011) is closed, the second relay switch (4012) is closed, and when the first relay switch (4011) is opened, the second relay switch (4012) is opened.

11. The recoverable temperature protection switch electric control system according to claim 1, characterized in that: Also includes: A relay base, wherein a power cord is arranged inside the relay base, and the power cord is connected to the power supply (20), wherein the solid-state timer (30) and / or the intermediate relay (40) are connected to the power cord via a preset interface on the relay base.

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