Temperature control device of laser

Abstract

The utility model relates to the technical field of laser cooling equipment, in particular to a laser temperature control device, which comprises a heating loop and a cooling loop, the heating loop and the cooling loop are connected in parallel, and a laser is communicated with a loop shared by the heating loop and the cooling loop. When the heating loop works, the cooling loop is closed, and heat loss caused when a refrigerant flows through the module in the heating process is avoided. The energy consumption and waste are obviously reduced, when the cooling loop works, the heating loop is closed, the cooling efficiency is improved, and the temperature of the laser can be more accurately controlled by alternately conducting the heating loop and the cooling loop which can be opened and closed. The problem of overlarge temperature change caused by frequent start and stop of a refrigeration module and a heating module in a traditional scheme is avoided, so that the risk of deviation of laser positioning is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cooling equipment technical field, especially a kind of laser temperature control device. BACKGROUND

[0002] When laser works, a large amount of heat will be generated, and the water chiller can take away the heat generated by the laser, to avoid the heat dissipation failure causing the laser damage. When the laser works at low temperature, water vapor will condense on the lens, and the laser cannot concentrate light normally, so the water chiller needs to be heated to avoid water droplets or frost in the lens. The water chiller can make the laser work at different ambient temperatures. When the refrigerant temperature is lower than the minimum working temperature (20℃) allowed by the laser, the water chiller heating module works, and when the refrigerant temperature is higher than the maximum temperature (30℃) allowed by the laser, the water chiller refrigeration module starts to work.

[0003] The existing laser cooling device adopts single cycle channel, and the refrigeration module and the heating module are located in one pipeline, and the heating and refrigeration circulation pipelines are completely the same. When heating, the heat dissipation needs to be reduced, but when the refrigerant flows through the module, it will cause heat dissipation, increase energy consumption and waste, especially in severe cold areas, energy waste is more serious. The temperature control mode of the heating module adopts simple on-off control, which will work below a certain temperature or above a certain temperature. One refrigeration and heating module will frequently start and stop, causing damage to the equipment itself. Two, it will cause too large temperature change, and too large temperature change will cause laser positioning to deviate. UTILITY MODEL CONTENTS

[0004] The utility model aims at: provide a kind of laser temperature control device, to solve the problem of heating module and heat dissipation module of laser in prior art interfere with each other.

[0005] The technical scheme of the utility model is: a kind of laser temperature control device, comprising: heating circuit and cooling circuit, the heating circuit is connected with the cooling circuit in parallel, the laser is communicated on the circuit shared by the heating circuit and the cooling circuit, and the startable and closable heating circuit and the startable and closable cooling circuit are alternately conducted.

[0006] Preferably, the heating circuit includes a heating module and a first valve, and the laser, the heating module and the first valve are connected in series.

[0007] Preferably, the cooling circuit includes a second valve and a heat dissipation module, and the laser, the heat dissipation module and the second valve are connected in series.

[0008] Preferably, the heat dissipation module includes a heat dissipation box and a heat dissipation fan, the heat dissipation box is communicated with the cooling circuit, and the heat dissipation fan is arranged towards the heat dissipation box.

[0009] Preferably, the circuit shared by the heating circuit and the cooling circuit is provided with a water pump and a temperature sensor fixed on the circuit of the laser output end.

[0010] Preferably, the output end of the water pump is communicated with the output end of the laser.

[0011] Preferably, the first valve and the second valve are both electromagnetic valves.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] (1) when the heating circuit works, the cooling circuit is closed, which avoids heat loss caused by the refrigerant flowing through the module during the heating process, significantly reduces energy consumption and waste, and the advantage of the scheme is more obvious when working in severe cold areas; when the cooling circuit works, the heating circuit is closed, which improves the cooling efficiency; by alternately opening and closing the heating circuit and the cooling circuit, the temperature of the laser can be more accurately controlled, the problem of large temperature change caused by frequent start and stop of the refrigeration and heating modules in the traditional scheme is avoided, and the risk of laser positioning deviation is reduced.

[0014] (2) the heat dissipation box as part of the cooling circuit can effectively receive and conduct heat from the laser or other heat generating components; through the refrigerant in the cooling circuit, the heat is taken away from the heat generating components and transferred to the heat dissipation box; the heat dissipation fan is arranged towards the heat dissipation box, wind flow is generated by rotation, and forced convection is formed, which helps to accelerate the heat dissipation of the surface of the heat dissipation box, and the heat is taken away and released to the surrounding environment more quickly.

[0015] (3) the control system can accurately adjust the working state of the heating circuit and the cooling circuit according to the feedback signal of the temperature sensor, so as to realize accurate control of the temperature of the laser. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in connection with the drawings and examples:

[0017] Figure 1 It is a circuit schematic view of the laser temperature control device;

[0018] Figure 2 It is a heating circuit schematic view of the utility model;

[0019] Figure 3 It is a heat dissipation circuit schematic view of the utility model.

[0020] Explanation of reference signs:

[0021] 1, heating circuit; 11, heating module; 12, first valve; 2, cooling circuit; 21, second valve; 22, heat dissipation module; 221, heat dissipation box; 222, heat dissipation fan; 223, heat dissipation plate; 3, heat control circuit; 4, laser; 5, water pump; 6, temperature sensor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship 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, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] As shown in Figure 1 A laser temperature control device, comprising a laser 4, a heating circuit 1 and a cooling circuit 2, the heating circuit 1 and the cooling circuit 2 are both single-circuit loops, and the heating circuit 1 and the cooling circuit 2 are connected in parallel, the heating circuit 1 and the cooling circuit 2 share a part of the circuit, the shared part of the circuit is a heat control circuit 3, and the laser 4 is connected to the heat control circuit 3. The openable and closable heating circuit 1 and the openable and closable cooling circuit 2 are alternately conducted, for controlling the temperature of the laser 4, so that the temperature of the laser 4 can be within a controllable range.

[0026] In the embodiment, the heating circuit 1 and the cooling circuit 2 are both pipe circuits, in which the refrigerant is circulated. After the refrigerant is heated, the refrigerant flows through the pipe in the laser 4, and the heat of the refrigerant is radiated to the laser 4, thereby heating the laser 4; after the refrigerant is cooled, the refrigerant flows through the pipe in the laser 4, and the laser 4 absorbs the heat of the refrigerant, thereby achieving the effect of cooling the laser 4. In other embodiments, a thermoelectric refrigerator temperature control system can be used, but this way is high in cost, and the structure of the present application is more universal. Preferably, the refrigerant is freon, and the arrow direction in the figure is the flow direction of the refrigerant.

[0027] As shown in Figure 2 , the heating circuit 1 comprises a heating module 11 and a first valve 12, and the laser 4, the heating module 11 and the first valve 12 are connected in series. When the laser 4 needs to be heated, the first valve 12 is opened, and the refrigerant of the heating circuit 1 is circulated, and after the heat of the refrigerant is absorbed by the laser 4, the refrigerant flows to the heating module 11, and the heating module 11 heats the refrigerant again to continuously heat the laser 4.

[0028] Unlike the laser 4, the heating module 11 and the first valve 12 are connected on the pipe, that is, the refrigerant flows through the heating module 11 and the first valve 12. In the embodiment, the heating module 11 is an electric heating module 11, which is usually designed in the form of a heating rod or a heating plate, and can be directly inserted or attached to the refrigerant, and heat is transferred to the refrigerant by the action of electric current. In other embodiments, the heating module 11 can use a heat pipe heating module 11 and an electromagnetic heating module 11.

[0029] As shown in Figure 3 , the cooling circuit 2 comprises a second valve 21 and a heat dissipation module 22, and the laser 4, the heat dissipation module 22 and the third valve are connected in series, when the laser 4 needs to be cooled, the first valve 12 is closed, and the second valve 21 is opened, the refrigerant of the cooling circuit 2 is circulated, the refrigerant absorbs the heat of the laser 4, and then flows through the heat dissipation module 22, and the heat dissipation module 22 dissipates the heat of the refrigerant to the outside.

[0030] In the embodiment, the first valve 12 and the second valve 21 are both electromagnetic valves, so as to facilitate the opening and closing of the first valve 12 and the second valve 21 by electric control, and in other embodiments, the first valve 12 and the second valve 21 can use ball valves or butterfly valves.

[0031] Specifically, the heat dissipation module 22 comprises a heat dissipation box 221 and a heat dissipation fan 222, the heat dissipation fan 222 is arranged towards the heat dissipation box 221, the refrigerant flows into the heat dissipation box 221 from the output end of the heat dissipation box 221, the heat dissipation box 221 is internally provided with a plurality of arrayed heat dissipation plates 223, the heat of the refrigerant is conducted to the heat dissipation plates 223, and the heat dissipation plates 223 are further transmitted to the outside through the heat dissipation box 221. When the temperature reduction speed of the heat dissipation box 221 is insufficient to reach a suitable temperature, the heat dissipation fan 222 blows towards the heat dissipation box 221, so as to accelerate the heat dissipation of the heat dissipation box 221.

[0032] The heat control loop 3 is communicated with a water pump 5, the output end of the laser 4 is communicated with the input end of the water pump 5, so as to accelerate the flow rate of the refrigerant in the heat control loop 3, thereby controlling the flow rate of the refrigerant in the heating loop 1 or the cooling loop 2.

[0033] The pipe of the heat control loop 3 is externally provided with a temperature sensor 6, and the temperature sensor 6 is fixedly arranged close to the laser 4, so as to accurately detect the temperature of the refrigerant entering the laser 4.

[0034] In the embodiment, the first valve 12, the second valve 21, the heat dissipation fan 222 and the temperature sensor 6 are all electrically connected to a control system, and the control system controls the temperature of the temperature sensor 6 to realize the alternating conduction of the heating loop 1 and the cooling loop 2 in an electrically controlled manner.

[0035] The above embodiment is only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A temperature control device for a laser, characterized by, The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system.

2. The temperature control device for a laser as claimed in claim 1, wherein: The application relates to a laser cooling and heating system.

3. The temperature control device for a laser as claimed in claim 2, wherein: The application relates to a laser cooling and heating system.

4. The temperature control device for a laser as claimed in claim 3, wherein: The application relates to a laser cooling and heating system.

5. The temperature control device for a laser as claimed in claim 1, wherein: The application relates to a laser cooling and heating system.

6. The temperature control device for a laser as claimed in claim 5, wherein: The application relates to a laser cooling and heating system.

7. The temperature control device for a laser as claimed in claim 2, wherein: The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser cooling and heating system. The application relates to a laser

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