Pressure-resistant lifting device

Abstract

The utility model discloses a withstand voltage lifting device, which comprises a controller, a push rod and a bedstead, the input end of the controller is connected with the positive electrode of a withstand voltage device, the output end of the controller is connected with a push rod circuit, the push rod circuit is also connected with a bedstead circuit, and the bedstead circuit is connected with the negative electrode of a withstand voltage device; the output end of the controller comprises a signal line S1 and a signal line S2, and a short circuit loop is formed between the signal line S1 and the signal line S2 through the voltage dividing piece and the outer pipe wall of the push rod. According to the utility model, the resistor equal voltage division member is arranged between the two signal lines, and the resistor equal voltage division member and the outer tube wall of the push rod form a short circuit loop, so that the damage of components caused by high voltage is effectively avoided, the maintenance and replacement cost of the components is reduced, and the safety during a withstand voltage test is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure test technical field especially is a kind of voltage boosting device. BACKGROUND

[0002] In the voltage test of single electronic product, it is generally tested by input line and output line short circuit, but when the system overall voltage test, each product needs to be connected and then voltage test, so the output line of electronic product cannot be short-circuited;Therefore, when voltage test, there will be several kilovolts voltage difference between the output line of electronic product, electronic components are damaged by sparking, leakage current is overproof, and safety hazard is caused. SUMMARY

[0003] The utility model discloses a kind of voltage boosting devices, to overcome the shortcoming that electronic components are damaged by sparking and leakage current is overproof in the overall voltage test of multiple products in prior art, and provide a kind of voltage boosting device.

[0004] The utility model discloses a kind of voltage boosting devices, to overcome the shortcoming that electronic components are damaged by sparking and leakage current is overproof in the overall voltage test of multiple products in prior art, and provide a kind of voltage boosting device.

[0005] A kind of voltage boosting device, including controller, push rod and bed frame, the input end of controller is connected with the positive pole of being voltage resistant equipment, the output end of controller is connected with push rod circuit, push rod circuit is also connected with bed frame circuit, bed frame circuit connects voltage resistant equipment negative pole;The output end of controller includes signal line S1 and signal line S2, signal line S1 and signal line S2 between by voltage divider and push rod outer tube wall form short-circuit loop.

[0006] In the scheme, push rod outer tube wall is metal plane, therefore, signal line S1 and signal line S2 between by voltage divider and push rod outer tube wall constitute short-circuit loop, when voltage test, current passes through short-circuit loop, so signal line S1 and signal line S2 between will not produce larger voltage difference, also avoid damaging component.

[0007] As preferred, the voltage divider is resistance R7 and resistance R8, one end of signal line S1 is connected with power supply, one end of signal line S2 is grounded;The other end of signal line S1 is connected with one end of resistance R7, the other end of resistance R7 is connected with push rod outer tube wall, the other end of signal line S2 is connected with one end of resistance R8, the other end of resistance R8 is connected with push rod outer tube wall, switch SW1 is also arranged between signal line S1 and signal line S2, signal line S2 is also connected with the control circuit of controller.

[0008] In the scheme, after the short circuit loop is formed between the signal line S1 and the signal line S2 through the voltage divider and the push rod outer tube wall, since the path impedance of the loop part of the signal line S1 is far less than the path impedance of the loop part of the signal line S2, the electrostatic energy can be stably discharged through the signal line S1 path, and the system electrostatic capacity is improved. In the prior art, since the discharge position of the electrostatic is uncertain, the electrostatic energy may discharge energy through the signal line S1 or the signal line S2 loop, but since the components of the signal line S2 loop are relatively sensitive and are easily affected by the electrostatic energy, the components are damaged. The design of the scheme avoids the defects in the prior art and further avoids the damage of the key components.

[0009] As preferred, the controller further comprises a motor line M+ and a motor line M-, and a control circuit in the controller forms a control loop through the signal line S1, the signal line S2, the motor line M+ and the motor line M- to control the movement of the push rod.

[0010] As preferred, the control circuit comprises a resistor R2, a resistor R4, a resistor R5 and a resistor R6, one end of the resistor R4 is connected with the signal line S2, the other end of the resistor R4 is connected with one end of the resistor R6, the other end of the resistor R6 is grounded, the other end of the resistor R4 is further connected with the base of a triode Q2, the collector of the triode Q2 is connected with one end of the resistor R2, the emitter of the triode Q2 is grounded, the other end of the resistor R2 is connected with a power supply, and one end of the resistor R2 is further connected with one end of the resistor R5 and the base of a triode Q1, the other end of the resistor R5 is grounded, and the emitter of the triode Q1 is grounded.

[0011] As preferred, an electrical gap is arranged between the signal line S1 and the resistor R7, between the resistor R7 and the push rod outer tube wall, between the signal line S2 and the resistor R8, and between the resistor R8 and the push rod outer tube wall. The design of the electrical gap avoids the breakdown of the components due to insufficient electrical gap.

[0012] The utility model discloses a beneficial effect is: the utility model discloses through setting up resistance and other electronic components between two signal lines, with push rod outer tube wall together constitute short circuit loop, effectively avoid the damage of component because of high voltage, reduce the cost of component maintenance and replacement, improve the safety when voltage withstand test. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a kind of circuit principle diagram of the utility model;

[0014] Figure 2 It is a kind of circuit connection diagram of the utility model.

[0015] Among them: 1, controller, 2, push rod, 3, bed frame. Detailed Implementation

[0016] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0017] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0018] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0019] Example:

[0020] A pressure-resistant lifting device, such as Figure 1 As shown, the device includes a controller 1, a push rod 2, and a bed frame 3. The input terminal of the controller is connected to the positive terminal of the pressure-resistant equipment, and the output terminal of the controller is connected to the push rod circuit. The push rod circuit is also connected to the bed frame circuit, which is connected to the negative terminal of the pressure-resistant equipment. The output terminal of the controller includes signal line S1 and signal line S2. Signal line S1 and signal line S2 form a short circuit through a voltage divider and the outer wall of the push rod.

[0021] In this design, the outer wall of the push rod is a flat metal surface. Therefore, signal lines S1 and S2 form a short circuit through the voltage divider and the outer wall of the push rod. During the withstand voltage test, the current flows through the short circuit, so there will be no large voltage difference between signal lines S1 and S2, thus avoiding damage to the components.

[0022] like Figure 2As shown, the voltage divider is resistor R7 and resistor R8, one end of signal line S1 is connected with power supply, one end of signal line S2 is grounded; the other end of signal line S1 is connected with one end of resistor R7, the other end of resistor R7 is connected with the outer wall of push rod, the other end of signal line S2 is connected with one end of resistor R8, the other end of resistor R8 is connected with the outer wall of push rod, switch SW1 is further arranged between signal line S1 and signal line S2, signal line S2 is further connected with the control circuit of controller.

[0023] In the scheme, after the short circuit loop is formed between signal line S1 and signal line S2 through the voltage divider and the outer wall of push rod, because the path impedance of the loop part of signal line S1 is far less than the path impedance of the loop part of signal line S2, the static electricity energy can be stably discharged through signal line S1, and the static electricity capacity of the system is improved. In the prior art, because the discharge position of static electricity is uncertain, the static electricity energy may be discharged through signal line S1 or signal line S2, but because the components of signal line S2 loop are sensitive and are easily affected by static electricity energy, the components are damaged. The scheme avoids the defects in the prior art and further avoids the damage of key components.

[0024] In normal operation, switch SW1 is closed, 5.7V voltage passes through resistor R3, then switch SW1, resistor R4 and resistor R6 to return to the ground end, and triode Q2 is turned on, and triode Q1 is turned off; when switch SW1 is opened, the voltage passes through the short circuit loop, then resistor R4 and resistor R6 to return to the ground end, at this time, triode Q2 is turned off, and triode Q1 is turned on.

[0025] The controller further comprises motor line M+ and motor line M-, and the control circuit in the controller forms a control loop through signal line S1, signal line S2, motor line M+ and motor line M- to control the movement of the push rod.

[0026] The control circuit comprises resistor R2, resistor R4, resistor R5 and resistor R6, one end of resistor R4 is connected with signal line S2, the other end of resistor R4 is connected with one end of resistor R6, the other end of resistor R6 is grounded, the other end of resistor R4 is further connected with the base of triode Q2, one end of resistor R2 is connected with the base of triode Q1 and one end of resistor R5, the other end of resistor R2 is connected with power supply, the other end of resistor R5 is grounded, and the emitter of triode Q1 is grounded.

[0027] The signal line S1 and the resistance R7, the resistance R7 and the outer tube wall of the push rod, the signal line S2 and the resistance R8, and the resistance R8 and the outer tube wall of the push rod are all provided with electrical gaps. The design of the electrical gaps avoids the breakdown of the components due to insufficient electrical gaps.

[0028] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope of the application being indicated by the following claims.

[0029] It is to be understood that the application is not limited to the precise details of design described herein and illustrated in the drawings. Various modifications and changes can be made to what has been described and illustrated without departing from the scope of the application. The scope of the application should only be limited by the appended claims.

Claims

1. A pressure-resistant lifting device, characterized in that, It includes a controller, a push rod, and a bed frame. The input terminal of the controller is connected to the positive terminal of the pressure-resistant equipment, and the output terminal of the controller is connected to the push rod circuit. The push rod circuit is also connected to the bed frame circuit, which is connected to the negative terminal of the pressure-resistant equipment. The output terminal of the controller includes signal line S1 and signal line S2. Signal line S1 and signal line S2 form a short circuit between each other through a pressure divider and the outer wall of the push rod.

2. The pressure-resistant lifting device according to claim 1, characterized in that, The voltage divider consists of resistors R7 and R8. One end of signal line S1 is connected to the power supply, and one end of signal line S2 is grounded. The other end of signal line S1 is connected to one end of resistor R7, and the other end of resistor R7 is connected to the outer wall of the push rod. The other end of signal line S2 is connected to one end of resistor R8, and the other end of resistor R8 is connected to the outer wall of the push rod. A switch SW1 is also provided between signal line S1 and signal line S2. Signal line S2 is also connected to the control circuit of the controller.

3. The pressure-resistant lifting device according to claim 2, characterized in that, The controller also includes motor line M+ and motor line M-. The control circuit in the controller controls the movement of the push rod by forming a control loop through signal line S1, signal line S2, motor line M+ and motor line M-.

4. A pressure-resistant lifting device according to claim 2 or 3, characterized in that, The control circuit includes resistors R2, R4, R5, and R6. One end of resistor R4 is connected to signal line S2, and the other end of resistor R4 is connected to one end of resistor R6. The other end of resistor R6 is grounded. The other end of resistor R4 is also connected to the base of transistor Q2. The collector of transistor Q2 is connected to one end of resistor R2, and the emitter of transistor Q2 is grounded. The other end of resistor R2 is connected to the power supply. One end of resistor R2 is also connected to one end of resistor R5 and the base of transistor Q1. The other end of resistor R5 is grounded, and the emitter of transistor Q1 is grounded.

5. The pressure-resistant lifting device according to claim 2, characterized in that, Electrical clearances are provided between signal line S1 and resistor R7, between resistor R7 and the outer wall of the push rod, between signal line S2 and resistor R8, and between resistor R8 and the outer wall of the push rod.

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