Crown block capable of preventing voltage stabilizer from being burnt

Abstract

The utility model discloses a crown block capable of preventing a voltage stabilizer from being burnt out. The crown block comprises a block body and electrical elements arranged in the block body, the electrical element comprises a power taking device, a voltage stabilizer, an anti-burning device and a circuit breaker which are electrically connected in sequence, the anti-burning device of the circuit breaker comprises a diode, and the diode is connected in series between the voltage stabilizer and the circuit breaker; and the output end of the external power supply is connected with the output end of the circuit breaker in parallel. According to the crown block capable of preventing the voltage stabilizer from being burnt out, the burning-out prevention device is arranged, and the current one-way conduction characteristic of the burning-out prevention device is achieved. When external power supply is carried out on the crown block, if the circuit breaker is not disconnected in advance, the anti-burnout device can cut off current flowing to the output end of the voltage stabilizer, and therefore the voltage stabilizer is prevented from being burnt out. The crown block capable of preventing the voltage stabilizer from being burnt down is low in cost and remarkable in effect.

Description

Technical Field

[0001] The utility model relates to a field, in particular to an overhead crane for preventing a voltage stabilizer from burning out. Background Art

[0002] Using the principle of magnetic field coupling, the power supply device of the overhead crane obtains electric energy from the track. After the electric energy is converted by the voltage stabilizer, it outputs a stable voltage to supply all other electrical components on the overhead crane. When the overhead crane is not on the track, it cannot obtain electric energy from the track. If debugging or maintenance is required, an external power supply must be provided to the overhead crane through the external power supply interface.

[0003] When the overhead crane is powered externally, the circuit breaker at the output end of the voltage stabilizer must be disconnected in advance, otherwise the external current will enter the output end of the voltage stabilizer and cause the voltage stabilizer to burn out. The disconnected state of the circuit breaker is manually controlled by the workshop workers, which is easy to misoperate. The existing voltage stabilizer does not have a corresponding protection device inside. Once misoperated, it will cause the voltage stabilizer to burn out. Replacing and repairing the voltage stabilizer is time-consuming, labor-intensive, and costly. Utility Model Content

[0004] The utility model overcomes the deficiency of the voltage stabilizer in the prior art that it is easy to be burned due to the operator's operating error, and provides an overhead crane for preventing the voltage stabilizer from being burned. To achieve the above purpose, the technical solution adopted by the utility model is: an overhead crane for preventing the voltage stabilizer from being burned, which includes: a car body and electrical components arranged in the car body;

[0005] The electrical component comprises a power supply, a voltage stabilizer, a burnout prevention device and a circuit breaker which are electrically connected in sequence, wherein the burnout prevention device of the circuit breaker comprises a diode which is connected in series between the voltage stabilizer and the circuit breaker;

[0006] An external power supply is also included, and an output end of the external power supply is connected in parallel with an output end of the circuit breaker.

[0007] In a preferred embodiment of the utility model, the voltage stabilizer has a positive output terminal and a negative output terminal, and is connected in series with the anti-burning device via the positive output terminal.

[0008] In a preferred embodiment of the utility model, it further comprises a main body, and the output end of the circuit breaker is electrically connected to the input end of the main body.

[0009] In a preferred embodiment of the utility model, the power supply has a DC positive port and a DC negative port, the voltage stabilizer has two input terminals, a positive output terminal and a negative output terminal, and the circuit breaker includes a first circuit breaker and a second circuit breaker;

[0010] The DC positive port and the DC negative port of the power supply are electrically connected to the two input ends of the voltage stabilizer respectively. The positive output end of the voltage stabilizer is connected in series with the anti-burning device and the first circuit breaker in sequence through the first circuit. The negative output end of the voltage stabilizer is connected in series with the second circuit breaker through the second circuit.

[0011] In a preferred embodiment of the utility model, the anti-burning device includes at least two diodes connected in parallel in the same direction, the positive input end of the anti-burning device is electrically connected to the positive output end of the regulator, and the negative output end of the anti-burning device is connected to the first circuit breaker.

[0012] In a preferred embodiment of the utility model, the external power supply includes a positive output terminal and a negative output terminal, the positive output terminal of the external power supply is electrically connected to the output terminal of the first circuit breaker, and the negative output terminal of the external power supply is electrically connected to the output terminal of the second circuit breaker.

[0013] In a preferred embodiment of the utility model, the anti-burning device includes a diode, the anode of the diode is electrically connected to the positive output terminal of the voltage stabilizer, and the cathode of the diode is electrically connected to the first circuit breaker.

[0014] In a preferred embodiment of the utility model, the power supply, the voltage stabilizer, the anti-burning device and the circuit breaker are connected by cables.

[0015] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0016] The anti-burning device of the utility model has a current unidirectional conduction characteristic. When the overhead crane is externally powered, if the circuit breaker is not disconnected in advance, the anti-burning device can cut off the current flowing to the output end of the voltage stabilizer, thereby preventing the voltage stabilizer from being burned. The overhead crane of the anti-burning voltage stabilizer disclosed by the utility model has low cost and significant effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, drawings of other embodiments can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a crane for preventing a voltage stabilizer from burning out described in an embodiment of the utility model;

[0019] Figure 2This is a connection diagram of electrical components of an overhead crane of an anti-burnout voltage stabilizer described in one embodiment of the utility model.

[0020] The reference numerals are as follows:

[0021] 1-track; 2-electrical device; 3-voltage stabilizer; 4-anti-burning device; 5-circuit breaker; 6-external power supply. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner. Therefore, they only show the structures related to the utility model. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other without conflict.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0026] The utility model discloses a crane for preventing a voltage stabilizer 3 from burning out, wherein: Figure 1 As shown, it includes a vehicle body suspended on a track 1 and electrical components arranged in the vehicle body, and power is supplied to the main body through the electrical components.

[0027] The electrical components include a power supply 2, a voltage stabilizer 3, a burnout prevention device 4 and a circuit breaker 5 which are electrically connected in sequence, and the current supplies power to the main body after passing through the circuit breaker 5. In addition, an external power supply interface is connected in parallel between the circuit breaker 5 and the main body, and power is supplied to the main body through an external power supply 6.

[0028] Specifically, combined Figure 1 and Figure 2 As shown, the power supply 2 has a DC positive port and a DC negative port, the voltage regulator 3 has two input terminals, a positive output terminal and a negative output terminal, and the circuit breaker 5 includes a first circuit breaker and a second circuit breaker.

[0029] Among them, refer to Figure 1 and Figure 2 As shown, the DC positive port and the DC negative port of the electrical device 2 are electrically connected to the two input terminals of the voltage stabilizer 3 respectively, the positive output terminal of the voltage stabilizer 3 is connected to the main body through a first circuit, and the negative output terminal of the voltage stabilizer 3 is connected to the main body through a second circuit. A first circuit breaker is connected in series on the first circuit, and a second circuit breaker is connected in series on the second circuit.

[0030] The anti-burning device 4 is arranged on the first circuit, which is connected in series between the voltage stabilizer 3 and the circuit breaker 5. The anti-burning device 4 includes two parallel diodes, wherein the input end of the anti-burning device 4 is electrically connected to the positive output end of the voltage stabilizer 3, and the negative output end of the anti-burning device 4 is connected to the first circuit breaker, thereby achieving conduction.

[0031] That is to say, the burnout prevention device 4 mainly includes a diode, the rated voltage of the diode is equal to the output voltage of the voltage regulator, the anode of the diode is electrically connected to the positive output terminal of the voltage regulator 3, and the cathode of the diode is electrically connected to the first circuit breaker, making full use of the unidirectional conductivity of the diode.

[0032] Here, two parallel diodes are provided, which can realize both forward conduction and reverse blocking, and can also ensure that when one of the diodes fails, the circuit can still work normally to conduct or cut off.

[0033] The external power supply 6 includes a positive output terminal and a negative output terminal. The positive output terminal of the external power supply 6 is electrically connected to the output terminal of the first circuit breaker, and the negative output terminal of the external power supply 6 is electrically connected to the output terminal of the second circuit breaker.

[0034] The utility model utilizes the unidirectional conduction characteristic of the diode, and connects the anti-burning device 4 of the corresponding voltage to the output end of the voltage stabilizer 3, whose rated voltage is equal to the output voltage of the voltage stabilizer 3, the positive pole of the anti-burning device 4 is connected to the output of the voltage stabilizer 3, and the negative pole of the anti-burning device 4 is connected to the input end of the circuit breaker 5.

[0035] Combination Figure 1-2 When the utility model is working, the overhead crane is suspended on the track 1, the electrical device 2 of the overhead crane can obtain electrical energy and transmit it to the voltage stabilizer 3 through the cable, the positive output end of the voltage stabilizer 3 is connected to the anti-burning device 4 through the cable, the current output by the voltage stabilizer 3 flows to the circuit breaker 5 through the anti-burning device 4 and the cable, and the circuit breaker 5 is closed, so that other electrical components on the overhead crane are able to obtain electricity and work.

[0036] An external power supply 6 is provided at the output end of the circuit breaker 5. When the external power supply is connected to the vehicle, the circuit breaker 5 will be manually disconnected in advance to prevent the current of the external power supply interface from flowing to the output end of the voltage stabilizer 3. If the circuit breaker 5 is not disconnected in time due to operator misoperation, or the circuit breaker 5 fails and is not disconnected sufficiently, the anti-burning device 4 will cut off the current flowing to the positive output end of the voltage stabilizer 3, thereby protecting the voltage stabilizer 3 from being burned.

[0037] The anti-burning device 4 of the utility model has a current unidirectional conduction characteristic. When the overhead crane is powered externally, if the circuit breaker 5 is not disconnected in advance, or the circuit breaker 5 fails and the disconnection is insufficient, the anti-burning device 4 can cut off the current flowing to the output end of the voltage stabilizer 3, thereby preventing the voltage stabilizer 3 from being burned.

[0038] The overhead crane for preventing the voltage stabilizer 3 from burning out disclosed by the utility model has low cost and remarkable effect.

[0039] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An overhead crane for preventing voltage stabilizer from burning out, characterized in that: include: A vehicle body and electrical components disposed in the vehicle body; The electrical component comprises a power supply, a voltage stabilizer, a burnout prevention device and a circuit breaker which are electrically connected in sequence, wherein the burnout prevention device of the circuit breaker comprises a diode which is connected in series between the voltage stabilizer and the circuit breaker; The anti-burning device is energized in one direction; An external power supply is also included, and an output end of the external power supply is connected in parallel with an output end of the circuit breaker.

2. The overhead crane for preventing voltage stabilizer from burning out according to claim 1, characterized in that: The voltage stabilizer has a positive output terminal and a negative output terminal, and is connected in series with the burnout prevention device via the positive output terminal.

3. The overhead travelling crane for preventing voltage stabilizer from burning out according to claim 1, characterized in that: It also includes a main body, and the output end of the circuit breaker is electrically connected to the input end of the main body.

4. The overhead travelling crane for preventing voltage stabilizer from burning out according to claim 1, characterized in that: The power supply has a DC positive port and a DC negative port, the voltage stabilizer has two input terminals, a positive output terminal and a negative output terminal, and the circuit breaker includes a first circuit breaker and a second circuit breaker; The DC positive port and the DC negative port of the power supply are electrically connected to the two input ends of the voltage stabilizer respectively. The positive output end of the voltage stabilizer is connected in series with the anti-burning device and the first circuit breaker in sequence through the first circuit. The negative output end of the voltage stabilizer is connected in series with the second circuit breaker through the second circuit.

5. The overhead travelling crane for preventing voltage stabilizer from burning out according to claim 4, characterized in that: The anti-burning device comprises at least two diodes connected in parallel in the same direction. The positive input end of the anti-burning device is electrically connected to the positive output end of the voltage regulator, and the negative output end of the anti-burning device is connected to the first circuit breaker.

6. The overhead travelling crane for preventing voltage stabilizer from burning out according to claim 4, characterized in that: The external power supply includes a positive output terminal and a negative output terminal. The positive output terminal of the external power supply is electrically connected to the output terminal of the first circuit breaker, and the negative output terminal of the external power supply is electrically connected to the output terminal of the second circuit breaker.

7. The overhead travelling crane for preventing voltage stabilizer from burning out according to claim 4, characterized in that: The anti-burning device comprises a diode, an anode of the diode is electrically connected to the positive output terminal of the voltage stabilizer, and a cathode of the diode is electrically connected to the first circuit breaker.

8. The overhead travelling crane for preventing voltage stabilizer from burning out according to claim 1, characterized in that: The power supply, the voltage stabilizer, the burnout prevention device and the circuit breaker are connected via cables.

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