High-voltage power supply laser

Abstract

The utility model discloses a high voltage power supply laser, comprising a box body, a voltage transformation structure and a pumping structure, the box body is provided with an installation cavity, and the box body is also provided with an external power supply interface; the voltage transformation structure is arranged in the mounting cavity and used for converting high voltage into low voltage, the voltage transformation structure is provided with a power supply loop, and the input end of the power supply loop is electrically connected with the external power interface; the pumping structure is arranged in the mounting cavity, and the input end of the pumping structure is electrically connected with the output end of the power supply loop. The voltage transformation structure is integrated into the high-voltage power supply laser for integrated design, a user can directly supply power to the external power supply interface on the box body by laying an external loop on a 10KV high-voltage cabinet, external high voltage is converted into low voltage after passing through the voltage transformation structure so as to reach rated voltage of a pumping structure, and the voltage on the external loop is relatively large, so that the voltage transformation structure is more stable and reliable. Therefore, the current is small, and the generated voltage drop is small.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber lasers, in particular to a high-voltage power supply laser. Background Art

[0002] The high voltage electricity provided by my country's power supply companies to enterprises is generally 10kV, 50HZ, while my country's industrial frequency voltage is 380V, 50HZ. The existing power supply method for high-power fiber lasers is generally to lay a circuit from the user's low-voltage distribution room's distribution cabinet or distribution box near the equipment to the laser equipment. Generally speaking, low voltage requires large current, and under normal circumstances, high-power fiber lasers are far away from the distribution cabinet or distribution box in the low-voltage distribution room, which leads to serious voltage drop in the power supply circuit. Utility Model Content

[0003] The main purpose of the utility model is to provide a high-voltage power supply laser, aiming to solve the problem of serious voltage drop in the existing high-power fiber laser powered by low-voltage power supply.

[0004] To achieve the above purpose, the high voltage power supply laser proposed in the utility model comprises:

[0005] A box body is formed with a mounting cavity, and an external power supply interface is also provided on the box body;

[0006] a transformer structure, arranged in the installation cavity, for transforming a high voltage into a low voltage, the transformer structure having a power supply circuit, an input end of the power supply circuit being electrically connected to the external power supply interface; and,

[0007] A pump structure is arranged in the installation cavity, and an input end of the pump structure is electrically connected to an output end of the power supply circuit.

[0008] In the technical solution provided by the utility model, the transformer structure is integrated into the high-voltage power supply laser for an integrated design. The user can directly lay an external loop from the 10KV high-voltage cabinet to supply power to the external power interface on the box. The external 10KV high voltage is converted into a 380V low voltage after passing through the transformer structure to reach the rated voltage of the pump structure. Since the voltage on the external loop is relatively large, the current therein is relatively small, and the voltage drop generated is relatively small. The cross-section of the external loop cable can be appropriately reduced, which can reduce the laying cost of the external loop. At the same time, the high-voltage power supply laser can be powered for long distances according to the setting requirements. Not only that, the high-voltage power supply laser provided in the present application can also release the user's low-voltage distribution capacity because it directly adopts high-voltage power supply.

[0009] In some implementations, the installation cavity includes a high-pressure cavity and a low-pressure cavity that are separated, and the power supply circuit is provided through the high-pressure cavity and the low-pressure cavity;

[0010] The voltage transformation structure comprises a transformer arranged on the power supply circuit, and the transformer is located in the high-voltage chamber;

[0011] The pump structure is located in the low-pressure chamber.

[0012] According to the above technical solution, the installation cavity is divided into a high-pressure cavity and a low-pressure cavity, and the transformer is arranged in the high-pressure cavity, and the pump structure is arranged in the low-pressure cavity, so as to protect the pump structure.

[0013] In some implementations, a high voltage circuit breaker and / or a low voltage circuit breaker is also provided on the power supply circuit;

[0014] The high-voltage circuit breaker is arranged in the high-voltage chamber;

[0015] The low-voltage circuit breaker is arranged in the low-voltage chamber.

[0016] According to the above technical solution, when an overcurrent occurs unexpectedly in the power supply circuit or a short circuit occurs in the power supply circuit, the circuit can be automatically cut off by setting the high-voltage circuit breaker and / or the low-voltage circuit breaker, thereby ensuring the electrical safety in the installation cavity, including the safety of the pumping structure.

[0017] In some implementations, a surge protector is further provided on the power supply circuit, and the surge protector is located in the low-voltage cavity and grounded.

[0018] According to the above technical solution, when the instantaneous current or voltage suddenly flowing into the power supply circuit is too large (for example, due to a lightning strike), the surge protector can control the current within the range that the electrical components can withstand, ensuring that the high-voltage power supply laser can operate normally and stably, reducing the probability of damage to the device.

[0019] In some implementations, a power indicator is also provided on the power supply circuit, and the power indicator is disposed close to the external power interface and grounded.

[0020] According to the above technical solution, by arranging a power display on the power supply circuit, it is possible to intuitively display whether the high-voltage power supply laser has an operating voltage. When the high-voltage power supply laser has an operating voltage, the display window of the power display can flash to warn the user that the high-voltage power supply laser is energized. When there is no power, there is no indication, which can prevent misoperation of the electrical appliance and improve the safety of the high-voltage power supply laser.

[0021] In some implementations, a voltage transformer and / or a current transformer is further provided on the power supply circuit corresponding to the powered display.

[0022] According to the above technical scheme, through the setting of the voltage transformer and the current transformer, the high voltage and large current on the power supply circuit can be converted into low voltage and small current according to the required proportion, which is convenient for voltage and current measuring instruments to measure, and can also play the role of relay protection to protect the safety of the power supply circuit.

[0023] In some implementations, the output end of the power supply circuit forms a plurality of branch circuits arranged in parallel;

[0024] The pump structure includes a plurality of pump units, and the plurality of pump units are electrically connected to each of the branch loops respectively.

[0025] According to the above technical solution, by providing a plurality of the pumping units, the output power of the high-voltage power supply laser can be increased, and by a plurality of the branch circuits, power can be supplied to each of the pumping units to ensure stable power supply.

[0026] In some implementations, each branch circuit is further provided with a miniature circuit breaker.

[0027] According to the above technical solution, through the setting of the miniature circuit breaker, it can be used as overload, overvoltage and short circuit protection, can play a role in terminal protection, and reduce the probability of damage to each pump unit.

[0028] In some implementations, each branch circuit is further provided with a power converter.

[0029] According to the above technical solution, the alternating current in the power supply circuit can be converted into direct current through the power converter, so as to supply power to the pump unit.

[0030] In some implementations, the power supply loop includes a copper busbar.

[0031] According to the above technical solution, since the copper busbar has high mechanical properties, good electrical conductivity, thermal conductivity, excellent corrosion resistance, electroplating, brazing, beautiful metallic luster and good formability, etc., the copper busbar is used for power supply in the high-voltage power supply laser, which generates less power loss, and the layout is relatively neat, and the internal space of the installation cavity can be reasonably used to reduce the overall volume of the high-voltage power supply laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 The present invention is a schematic structural diagram of an embodiment of a high-voltage power supply laser provided by the present invention.

[0034] Description of Figure Numbers:

[0035] Label name Label name 100 High voltage laser power supply 2212 Power Converter 1 Cabinet 3 Pump structure 11 Mounting cavity 31 Pump unit 111 High pressure chamber 4 High voltage circuit breaker 112 Low pressure chamber 5 Low voltage circuit breaker 12 External power interface 6 Surge protector 2 Transformer structure 7 Charge indicator 21 transformer 8 Voltage transformer 22 Power supply circuit 9 Fuse 221 Branch circuit 10 Current transformer 2211 Miniature circuit breakers

[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that if a directional indication is involved in the embodiments of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0040] The high voltage electricity provided by my country's power supply companies to enterprises is generally 10kV, 50HZ, while my country's industrial frequency voltage is 380V, 50HZ. The existing power supply method for high-power fiber lasers is generally to lay a circuit from the user's low-voltage distribution room's distribution cabinet or distribution box near the equipment to the laser equipment. Generally speaking, low voltage requires large current, and under normal circumstances, high-power fiber lasers are far away from the distribution cabinet or distribution box in the low-voltage distribution room, which leads to serious voltage drop in the power supply circuit.

[0041] In view of this, the utility model proposes a high-voltage power supply laser, aiming to solve the problem of serious voltage drop in the existing high-power fiber laser powered by low-voltage power supply.

[0042] See also Figure 1 , Figure 1 A schematic structural diagram of an embodiment of a high-voltage power-supply laser 100 provided by the utility model, wherein the high-voltage power-supply laser 100 comprises a housing 1, a transformer structure 2 and a pump structure 3, wherein the housing 1 is formed with a mounting cavity 11, and an external power interface 12 is also provided on the housing 1; the transformer structure 2 is arranged in the mounting cavity 11, and is used to convert a high voltage into a low voltage, and the transformer structure 2 has a power supply circuit 22, and an input end of the power supply circuit 22 is electrically connected to the external power interface 12; the pump structure 3 is arranged in the mounting cavity 11, and an input end of the pump structure 3 is electrically connected to an output end of the power supply circuit 22.

[0043] It should be noted that the function of the transformer structure 2 is to convert the external high voltage into a low voltage that can meet the power supply requirements, and the embodiment of the present application does not limit its specific structure; the function of the pump structure 3 is to output laser to the outside, and the function of the power supply circuit 22 is to output electrical energy to the pump structure 3. There are many types of pump structures 3, which are not limited in this embodiment; generally speaking, the box body 1 is generally a metal armored structure, which is not described in detail in this application.

[0044] In the technical solution provided by the present utility model, the transformer structure 2 is integrated into the high-voltage power supply laser 100 for an integrated design. The user can directly lay an external loop from the 10KV high-voltage cabinet to supply power to the external power interface 12 on the box 1. The external 10KV high voltage is converted into a 380V low voltage after passing through the transformer structure 2 to reach the rated voltage of the pump structure 3. Since the voltage on the external loop is relatively large, the current therein is relatively small, and the voltage drop generated is relatively small. The cross-section of the external loop cable can be appropriately reduced, which can reduce the laying cost of the external loop. At the same time, the high-voltage power supply laser 100 can be powered for long distances according to the setting requirements. Not only that, the high-voltage power supply laser 100 provided in the present application can also release the user's low-voltage distribution capacity due to the direct use of high-voltage power supply.

[0045] In some embodiments, the installation cavity 11 includes a high-pressure cavity 111 and a low-pressure cavity 112 which are separated, and the power supply circuit 22 passes through the high-pressure cavity 111 and the low-pressure cavity 112; the transformer structure 2 includes a transformer 21 arranged on the power supply circuit 22, and the transformer 21 is located in the high-pressure cavity 111; the pump structure 3 is located in the low-pressure cavity 112.

[0046] It should be noted that the transformer 21 includes various types, but considering the application in the 10KV high voltage pressure reduction scenario, the transformer 21 is usually set as a small or medium-sized transformer.

[0047] According to the above technical solution, the installation cavity 11 is divided into a high-pressure cavity 111 and a low-pressure cavity 112 , and the transformer 21 is arranged in the high-pressure cavity 111 , and the pumping structure 3 is arranged in the low-pressure cavity 112 , so as to protect the pumping structure 3 .

[0048] In some embodiments, a high voltage circuit breaker 4 and / or a low voltage circuit breaker 5 is further provided on the power supply circuit 22 ; the high voltage circuit breaker 4 is provided in the high voltage chamber 111 ; the low voltage circuit breaker 5 is provided in the low voltage chamber 112 .

[0049] It should be noted that the above implementation includes three parallel technical solutions, namely, "a high-voltage circuit breaker 4 is also provided on the power supply circuit 22", "a low-voltage circuit breaker 5 is also provided on the power supply circuit 22" and "a high-voltage circuit breaker 4 and a low-voltage circuit breaker 5 are also provided on the power supply circuit 22". It is obvious that the solution of "a high-voltage circuit breaker 4 and a low-voltage circuit breaker 5 are also provided on the power supply circuit 22" produces better results.

[0050] According to the above technical solution, when an overcurrent occurs unexpectedly in the power supply circuit 22 or a short circuit occurs in the power supply circuit 22, the high-voltage circuit breaker 4 and / or the low-voltage circuit breaker 5 can automatically cut off the circuit, thereby ensuring the electrical safety in the installation cavity 11, including the safety of the pumping structure 3.

[0051] In some embodiments, a surge protector 6 is further provided on the power supply circuit 22 , and the surge protector 6 is located in the low-voltage cavity 112 and is grounded.

[0052] According to the above technical solution, when the instantaneous current or voltage suddenly flowing into the power supply circuit 22 is too large (for example, due to a lightning strike), the surge protector 6 can control the current within the range that the electrical components can withstand, thereby ensuring that the high-voltage power supply laser 100 can operate normally and stably and reducing the probability of it being damaged.

[0053] In some embodiments, a power indicator 7 is further provided on the power supply circuit 22 , and the power indicator 7 is close to the external power interface 12 and grounded.

[0054] According to the above technical solution, by arranging a charged display 7 on the power supply circuit 22, it is possible to intuitively display whether the high-voltage power supply laser 100 has an operating voltage. When the high-voltage power supply laser 100 has an operating voltage, the display window of the charged display 7 can emit a flash to warn the user that the high-voltage power supply laser 100 is energized. When there is no power, there is no indication, which can prevent misoperation of the electrical appliance and improve the safety of the high-voltage power supply laser 100.

[0055] In some embodiments, a voltage transformer 8 and / or a current transformer 10 is further provided on the power supply circuit 22 corresponding to the powered display 7 .

[0056] According to the above technical scheme, through the setting of the voltage transformer 8 and the current transformer 10, the high voltage and large current on the power supply circuit 22 can be converted into low voltage and small current according to the required proportion, which is convenient for voltage and current measuring instruments to measure, and can also play the role of relay protection to protect the safety of the power supply circuit 22.

[0057] Specifically, a fuse 9 is further provided on the high voltage side of the voltage transformer 8. The provision of the fuse 9 can prevent the voltage transformer 8 from being damaged by overcurrent.

[0058] The pump structure 3 can be set as an integral structure or a split structure. Correspondingly, the structure of the power supply circuit 22 is also different. Specifically, in some embodiments, the output end of the power supply circuit 22 is formed with a plurality of branch circuits 221 arranged in parallel; the pump structure 3 includes a plurality of pump units 31, and the plurality of pump units 31 are electrically connected to each of the branch circuits 221 respectively.

[0059] According to the above technical solution, by providing a plurality of the pumping units 31, the output power of the high-voltage power supply laser 100 can be increased, and by a plurality of the branching loops 221, each of the pumping units 31 can be powered to ensure stable power supply.

[0060] Furthermore, in some embodiments, each branch circuit 221 is also provided with a miniature circuit breaker 2211 .

[0061] According to the above technical solution, by setting the miniature circuit breaker 2211 , it can be used as overload, overvoltage and short circuit protection, and can play a role in terminal protection, thereby reducing the probability of damage to each pump unit 31 .

[0062] Generally speaking, the power supply circuit 22 is directly connected to the external circuit, in which AC power is transmitted. However, most electrical equipment generally uses DC power. Therefore, in other embodiments, a power converter 2212 is also provided on each of the branch circuits 221.

[0063] According to the above technical solution, the AC power in the power supply circuit 22 can be converted into DC power through the power converter 2212 , so as to supply power to the pump unit 31 .

[0064] The power supply circuit 22 can be powered by wires or other methods. In some embodiments, the power supply circuit 22 includes a copper busbar. Since the copper busbar has high mechanical properties, good electrical conductivity, thermal conductivity, excellent corrosion resistance, electroplating, brazing, beautiful metallic luster and good formability, etc., the copper busbar is used for power supply in the high-voltage power supply laser 100, which generates less power loss, and the layout is relatively neat, and the internal space of the installation cavity 11 can be reasonably utilized to reduce the overall volume of the high-voltage power supply laser 100.

[0065] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made under the concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A high voltage power supply laser, characterized in that: include: A box body is formed with a mounting cavity, and an external power supply interface is also provided on the box body; a transformer structure, arranged in the installation cavity, for transforming a high voltage into a low voltage, the transformer structure having a power supply circuit, an input end of the power supply circuit being electrically connected to the external power supply interface; and, A pump structure is arranged in the installation cavity, and an input end of the pump structure is electrically connected to an output end of the power supply circuit.

2. The high voltage power supply laser according to claim 1, characterized in that: The installation cavity comprises a high-pressure cavity and a low-pressure cavity which are separated, and the power supply circuit is arranged through the high-pressure cavity and the low-pressure cavity; The voltage transformation structure comprises a transformer arranged on the power supply circuit, and the transformer is located in the high-voltage chamber; The pump structure is located in the low-pressure chamber.

3. The high voltage power supply laser as claimed in claim 2, characterized in that: The power supply circuit is also provided with a high voltage circuit breaker and / or a low voltage circuit breaker; The high-voltage circuit breaker is arranged in the high-voltage chamber; The low-voltage circuit breaker is arranged in the low-voltage chamber.

4. The high voltage power supply laser as claimed in claim 2, characterized in that: A surge protector is also provided on the power supply circuit, and the surge protector is located in the low-voltage cavity and grounded.

5. The high voltage power supply laser as claimed in claim 2, characterized in that: A power indicator is also provided on the power supply circuit, and the power indicator is close to the external power interface and is grounded.

6. The high voltage power supply laser as claimed in claim 5, characterized in that: The power supply circuit is also provided with a voltage transformer and / or a current transformer corresponding to the energized display.

7. The high voltage power supply laser according to claim 1, characterized in that: The output end of the power supply circuit is formed with a plurality of branch circuits arranged in parallel; The pump structure includes a plurality of pump units, and the plurality of pump units are electrically connected to each of the branch loops respectively.

8. The high voltage power supply laser according to claim 7, characterized in that: Each of the branch circuits is also provided with a miniature circuit breaker.

9. The high voltage power supply laser according to claim 7, characterized in that: Each of the branch circuits is also provided with a power converter.

10. The high voltage power supply laser according to claim 1, characterized in that: The power supply circuit includes a copper busbar.

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