Frequency converter for loom and loom

Abstract

The utility model discloses a frequency converter for a weaving machine and the weaving machine, and relates to the technical field of power distribution equipment, a case, a frequency converter and a heat dissipation mechanism are adopted, the two sides of the case in the thickness direction of the case respectively form an installation side and an operation side, and a heat conduction partition plate is arranged in the case. The case is divided into a first cavity and a second cavity which are not communicated with each other in the thickness direction of the case by the heat conduction partition plate, then the first cavity is arranged to be close to the installation side, an air inlet and an air outlet are formed in the two side walls, corresponding to the first cavity, of the case in the height direction respectively, and the second cavity is arranged to be close to the operation side; the frequency conversion module in the frequency conversion device is installed in the second cavity, the capacitor in the frequency conversion device is installed in the first cavity, and then the heat dissipation mechanism is installed in the first cavity, so that the function that the heat dissipation channel and the frequency conversion module are designed separately and independently is achieved, and the frequency conversion module failure caused by pollution of external dust to the frequency conversion module is avoided; and the safe use of the frequency converter is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution equipment, in particular to an inverter for a loom and a loom. Background Art

[0002] As the main equipment in the weaving industry, a loom has very wide applications. A loom usually uses an electric motor as the main driving device to work. When using a loom, an inverter is usually arranged in the loom to achieve corresponding control functions.

[0003] In the prior art, in order to ensure the heat dissipation effect, the frequency conversion devices arranged in the inverter are usually arranged along the width direction of the chassis. After the relevant arrangement is completed, an air duct is arranged inside the chassis to dissipate heat from each component in the frequency conversion devices. However, although this setting method can achieve the heat dissipation function, in actual use, the frequency conversion devices occupy a large space, resulting in a large volume of the entire inverter device. When external air enters between the frequency conversion devices, the frequency conversion devices will be contaminated by dust, which easily causes the frequency conversion devices to fail and poses a safety hazard. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose an inverter for a loom and a loom, aiming to solve the technical problems in the prior art that in actual use, the frequency conversion devices occupy a large space, resulting in a large volume of the entire inverter device, and when external air enters between the frequency conversion devices, the frequency conversion devices will be contaminated by dust, which easily causes the frequency conversion devices to fail and poses a safety hazard.

[0005] To achieve the above object, an inverter for a loom proposed by the utility model includes:

[0006] A chassis, on both sides of which along its thickness direction, an installation side and an operation side are respectively formed. A heat-conducting partition is arranged inside the chassis, and the heat-conducting partition divides the chassis into a first chamber and a second chamber which are arranged along the thickness direction of the chassis and are not communicated with each other. The first chamber is arranged close to the installation side, and the second chamber is arranged close to the operation side. Air inlets and air outlets are respectively formed on both sides of the chassis along its height direction, and both the air inlets and the air outlets are communicated with the first chamber;

[0007] Frequency conversion devices, the frequency conversion devices include a frequency conversion module and a capacitor. The frequency conversion module is installed in the second chamber, and the capacitor is installed in the first chamber and is arranged close to the air inlet; and,

[0008] A heat dissipation mechanism, the heat dissipation mechanism is received in the first chamber, the heat dissipation mechanism includes a radiator and a suction member, the radiator is connected to the heat conduction partition and can conduct heat, and the suction member can suck external air from the air inlet into the first chamber and discharge it from the air outlet.

[0009] In one embodiment, the suction member is a cooling fan, the cooling fan is disposed near the air outlet, and the radiators are spaced apart between the cooling fan and the capacitor.

[0010] In one embodiment, the heat dissipation mechanism further includes a mounting plate installed between the air outlet and the radiator, the mounting plate is formed with air passing holes, and the cooling fan is installed on the mounting plate and communicated with the air passing holes to suck external air from the air inlet into the first chamber and discharge it from the air outlet after passing through the air passing holes.

[0011] In one embodiment, an air inlet hole and an air outlet hole are formed on a box wall of the chassis forming the installation side, the air inlet hole is disposed near the air inlet, the air outlet hole is disposed near the air outlet, and the cooling fan can suck external air from the air inlet and the air inlet hole into the first chamber and discharge it from the air outlet and the air outlet hole after passing through the air passing holes.

[0012] In one embodiment, first dust-proof nets are installed on both the air inlet hole and the air outlet hole.

[0013] In one embodiment, second dust-proof nets are installed on both the air inlet and the air outlet.

[0014] In one embodiment, the radiator includes a heat dissipation base and a plurality of heat dissipation fins, the heat dissipation base is installed on the heat conduction partition, the plurality of heat dissipation fins are spaced apart and installed on the heat conduction partition, and an air passing channel is formed between any two adjacent heat dissipation fins for external air to pass through in the direction from the air inlet to the air outlet.

[0015] In one embodiment, the variable frequency module includes a keyboard module, a control module and an IGBT module. An operation port is formed on a box wall of the chassis forming the operation side, the keyboard module is disposed corresponding to the operation port, the keyboard module, the control module and the IGBT module are sequentially spaced apart along the direction from the operation side to the installation side, and both the keyboard module and the IGBT module are signal-connected to the control module.

[0016] In one embodiment, the IGBT module includes a circuit board and a plurality of electronic components electrically connected to the circuit board. The plurality of electronic components are spaced apart along the height direction of the chassis, and the circuit board is signal-connected to the control module.

[0017] Based on the same inventive concept, in a second aspect, the present utility model provides a loom, which is applied with the frequency converter for loom described in the first aspect.

[0018] The technical solution of the present utility model adopts a chassis, a frequency conversion device and a heat dissipation mechanism. When in use, both sides of the chassis in its thickness direction form an installation side and an operation side respectively, and a heat conduction partition is arranged in the chassis, so that the heat conduction partition divides the chassis into a first chamber and a second chamber that are not connected to each other in the thickness direction of the chassis. The first chamber is arranged to be close to the installation side, and both side walls of the chassis corresponding to the first chamber in the height direction form an air inlet and an air outlet respectively. The second chamber is arranged to be close to the operation side. The frequency conversion module in the frequency conversion device is installed in the second chamber, the capacitors in the frequency conversion device are installed in the first chamber, and the heat dissipation mechanism is also installed in the first chamber. When the present utility model is in use, the air suction part in the heat dissipation mechanism can suck the outside air from the air inlet and make it cool and dissipate heat from the capacitors and the radiator in the heat dissipation mechanism in turn and then flow out from the air outlet, so as to realize heat dissipation. At the same time, since a heat conduction partition is arranged in the chassis to divide the chassis into a first chamber and a second chamber that are arranged in the thickness direction of the chassis and are not connected to each other, and the first chamber is used to install the heat dissipation mechanism, the present utility model can realize the function of separately and independently designing the heat dissipation channel and the frequency conversion module, avoid the failure of the frequency conversion module caused by the pollution of the outside dust to the frequency conversion module, and effectively ensure the safe use of the frequency converter. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the frequency converter for loom provided by the present utility model;

[0021] Figure 2 It is a schematic internal structure diagram of the frequency converter for loom provided by the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the disassembled state of the heat dissipation mechanism of the frequency converter for loom according to the example of the present utility model.

[0023] Explanation of the reference numerals in the drawings:

[0024] 100, Chassis; 110, Installation side; 120, Operation side; 130, Heat conduction partition; 140, First chamber; 150, Second chamber; 160, Air inlet; 170, Air outlet;

[0025] 200, Variable frequency device; 210, Variable frequency module; 220, Capacitor; 211, Keyboard module; 212, Control module; 213, IGBT module; 214, Installation slot; 215, Circuit board; 216, Electronic components;

[0026] 300, Heat dissipation mechanism; 310, Radiator; 320, Air suction component; 330, Mounting plate; 340, Air passing hole; 350, Air inlet hole; 360, Air outlet hole; 370, First dust filter; 380, Second dust filter; 311, Heat dissipation base; 312, Heat dissipation fins.

[0027] The realization, functional features and advantages of the purpose of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0031] The present utility model provides a frequency converter for a loom and a loom.

[0032] Please refer to Figures 1 to 3 , in an embodiment of the present utility model,

[0033] The frequency converter for the loom includes:

[0034] A chassis 100, on both sides of the chassis 100 along its thickness direction, an installation side 110 and an operation side 120 are respectively formed. A heat conduction partition 130 is arranged in the chassis 100. The heat conduction partition 130 divides the chassis 100 into a first chamber 140 and a second chamber 150 which are arranged along the thickness direction of the chassis 100 and are not communicated with each other. The first chamber 140 is arranged close to the installation side 110, and the second chamber 150 is arranged close to the operation side 120. On both sides of the chassis 100 along its height direction, an air inlet 160 and an air outlet 170 are respectively formed. The air inlet 160 and the air outlet 170 are both communicated with the first chamber 140;

[0035] A frequency conversion device 200, the frequency conversion device 200 includes a frequency conversion module 210 and a capacitor 220. The frequency conversion module 210 is installed in the second chamber 150, and the capacitor 220 is installed in the first chamber 140 and is arranged close to the air inlet 160; and,

[0036] A heat dissipation mechanism 300, the heat dissipation mechanism 300 is received in the first chamber 140. The heat dissipation mechanism 300 includes a radiator 310 and an air suction member 320. The radiator 310 is connected to the heat conduction partition 130 and can conduct heat. The air suction member 320 can suck outside air from the air inlet 160 into the first chamber 140 and discharge it from the air outlet 170.

[0037] It should be specifically and clearly noted that devices such as the capacitor 220 and the frequency conversion module 210 exemplified in this embodiment all adopt existing technologies, and no improvement design is made to them in this embodiment. Therefore, they will not be elaborated here one by one. The air suction member 320 exemplified in this embodiment can be, but is not limited to, a suction fan or a blower in the existing technology. Among them, the left - right direction exemplified in the figure is the height direction of the chassis, and the up - down direction exemplified is the thickness direction of the chassis.

[0038] In this embodiment, by adopting a chassis 100, a frequency conversion device 200 and a heat dissipation mechanism 300, during use, installation sides 110 and an operation side 120 are respectively formed on two sides of the chassis 100 along its thickness direction, and a heat conduction partition 130 is arranged inside the chassis 100, so that the heat conduction partition 130 divides the chassis 100 into a first chamber 140 and a second chamber 150 that are not communicated with each other along the thickness direction of the chassis 100. Then, the first chamber 140 is set to be close to the installation side 110, and both side walls of the chassis 100 corresponding to the first chamber 140 along the height direction respectively form an air inlet 160 and an air outlet 170. The second chamber 150 is set to be close to the operation side 120. At the same time, a frequency conversion module 210 in the frequency conversion device 200 is installed in the second chamber 150, and a capacitor 220 in the frequency conversion device 200 is installed in the first chamber 140. Then, the heat dissipation mechanism 300 is also installed in the first chamber 140, so that when the present utility model is in use, the air suction member 320 in the heat dissipation mechanism 300 can suck external air from the air inlet 160, and after the external air sequentially cools and dissipates heat from the capacitor 220 and the radiator 310 in the heat dissipation mechanism 300, it flows out from the air outlet 170 to achieve heat dissipation. At the same time, because a heat conduction partition is arranged in the chassis to divide the chassis into a first chamber and a second chamber that are arranged along the thickness direction of the chassis and are not communicated with each other, and the first chamber is used to install the heat dissipation mechanism, the present utility model can realize the function of separately and independently designing the heat dissipation channel and the frequency conversion module 210, avoiding the failure of the frequency conversion module 210 caused by the pollution of the external dust to the frequency conversion module 210, and effectively ensuring the safe use of the frequency converter.

[0039] In some specific embodiments, the air suction member 320 is a heat dissipation fan, the heat dissipation fan is arranged close to the air outlet 170, and the radiators 310 are distributed at intervals between the heat dissipation fan and the capacitor 220.

[0040] In this embodiment, the air suction member 320 is set as a heat dissipation fan, and the heat dissipation fan is arranged close to the air outlet 170, so that when the present utility model is in use, the heat dissipation fan can suck the external air that enters the first chamber 140 through the air inlet 160 and sequentially dissipates heat from the capacitor 220 and the radiator 310, and finally discharges the external air through the air outlet 170. Furthermore, when the present utility model is in use, the cooperation of the set heat dissipation fan and the radiator 310 can play an efficient heat dissipation function for the frequency conversion device 200, ensuring the safe operation of the frequency conversion device 200.

[0041] It needs to be specifically and clearly stated that the heat dissipation fan exemplified in this embodiment can be an exhaust fan or a blower.

[0042] In some preferred embodiments, the heat dissipation mechanism 300 further includes a mounting plate 330 installed between the air outlet 170 and the radiator 310. An air passing hole 340 is formed on the mounting plate 330. The cooling fan is installed on the mounting plate 330 and communicated with the air passing hole 340, so as to suck the outside air from the air inlet 160 into the first chamber 140 and discharge it from the air outlet 170 after passing through the air passing hole 340.

[0043] In this embodiment, by arranging the mounting plate 330 between the air outlet 170 and the radiator 310, forming the air passing hole 340 on the mounting plate 330, installing the cooling fan on the mounting plate 330, and making the cavity where the fan blades of the cooling fan are located communicated with the air passing hole 340, the utility model can stably install the cooling fan in the first chamber 140 during use. At the same time, by arranging the mounting plate 330 and forming the air passing hole 340 on the mounting plate 330, the utility model can also control the flow cross-sectional area of the outside air in the chamber by using the arranged air passing hole 340 to realize the function of adjusting the flow rate of the outside air in the first chamber 140.

[0044] It should be specifically and clearly stated that when the mounting plate 330 exemplified in this embodiment is installed in the first chamber 140, the mounting plate 330 should be seamlessly connected to the inner wall of the first chamber 140, so as to ensure that the outside air all flows through the air passing hole 340 to the air outlet 170.

[0045] In some specific embodiments, an air inlet hole 350 and an air outlet hole 360 are formed on a box wall of the chassis 100 where the mounting side 110 is formed. The air inlet hole 350 is arranged close to the air inlet 160, and the air outlet hole 360 is arranged close to the air outlet 170. The cooling fan can suck the outside air from the air inlet 160 and the air inlet hole 350 into the first chamber 140 and discharge it from the air outlet 170 and the air outlet hole 360 after passing through the air passing hole 340.

[0046] In this embodiment, by forming the mounting side 110 on the mounting wall of the capacitor 220 corresponding to the first chamber 140 and forming the air inlet hole 350 and the air outlet hole 360 on the mounting wall, the utility model can increase the air intake and exhaust volume of the outside air during use, thereby enhancing the heat dissipation efficiency.

[0047] It should be specifically and clearly stated that first dust-proof nets 370 are installed on both the air inlet hole 350 and the air outlet hole 360. Second dust-proof nets 380 are installed on both the air inlet 160 and the air outlet 170.

[0048] In this embodiment, by providing the first dust-proof net 370 and the second dust-proof net 380, the utility model can avoid large-particle dust carried by the external wind from entering the first chamber 140 during use, thereby preventing damage to the radiator 310 and the capacitor 220.

[0049] In some preferred embodiments, the radiator 310 includes a heat dissipation base 311 and a plurality of heat dissipation fins 312. The heat dissipation base 311 is installed on the heat conduction partition 130, and the plurality of heat dissipation fins 312 are installed on the heat conduction partition 130 at intervals. An air passage is formed between any two adjacent heat dissipation fins 312 for the external wind to pass through from the air inlet 160 to the air outlet 170.

[0050] In this embodiment, by providing the heat dissipation base 311 and the plurality of heat dissipation fins 312, the heat dissipation efficiency of the utility model can be improved during use.

[0051] In some specific embodiments, the frequency conversion module 210 includes a keyboard module 211, a control module 212, and an IGBT module 213. An operation port is formed on a box wall of the chassis 100 where the operation side 120 is located. The keyboard module 211 is arranged corresponding to the operation port. The keyboard module 211, the control module 212, and the IGBT module 213 are arranged at intervals in sequence along the direction from the operation side 120 to the installation side 110. Both the keyboard module 211 and the IGBT module 213 are signal-connected to the control module 212. The IGBT module 213 includes a circuit board 215 and a plurality of electronic components 216 electrically connected to the circuit board 215. The plurality of electronic components 216 are arranged at intervals along the height direction of the chassis 100, and the circuit board 215 is signal-connected to the control module 212.

[0052] In this embodiment, by arranging the plurality of electronic components 216 in the IGBT module 213 and electrically connecting the plurality of electronic components 216 to the circuit board 215 at intervals along the height direction of the chassis 100, the volume of the entire chassis 100 can be reduced during use, and the versatility of the frequency converter is improved.

[0053] Based on the same technical concept, in a second aspect, the utility model provides a loom, which applies the frequency converter for loom in the first aspect.

[0054] In addition, the loom provided in the embodiment of the present application can solve most of the technical problems that there is no independent air duct design, that is, the PCB board module is exposed in the air duct and is more likely to be contaminated by dust, the components are prone to failure, and there are potential safety hazards. Compared with the prior art, the beneficial effects of the loom provided in the embodiment of the present application are the same as those of the frequency converter for loom provided in the above embodiment, and other technical features in the loom are the same as those disclosed in the above embodiment, and will not be elaborated here.

[0055] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A frequency converter for a loom, characterized in that: include: A chassis, wherein the chassis is provided with an installation side and an operation side on both sides along the thickness direction thereof, respectively; a heat-conducting baffle is provided inside the chassis, and the heat-conducting baffle separates the chassis into a first chamber and a second chamber which are arranged along the thickness direction of the chassis and are not connected to each other, the first chamber is provided close to the installation side, and the second chamber is provided close to the operation side, and the chassis is provided with an air inlet and an air outlet on both sides along the height direction thereof, respectively, and the air inlet and the air outlet are both connected to the first chamber; A frequency conversion device, the frequency conversion device comprising a frequency conversion module and a capacitor, the frequency conversion module is installed in the second chamber, and the capacitor is installed in the first chamber and arranged close to the air inlet; as well as, The heat dissipation mechanism is accommodated in the first chamber, and the heat dissipation mechanism includes a radiator and an air suction member. The radiator is connected to the heat-conducting baffle and can conduct heat. The air suction member can suck external air from the air inlet into the first chamber and discharge it from the air outlet.

2. The frequency converter for a loom according to claim 1, characterized in that: The air suction member is a heat dissipation fan, the heat dissipation fan is arranged close to the air outlet, and the radiator is distributed between the heat dissipation fan and the capacitor at intervals.

3. The frequency converter for a loom according to claim 2, characterized in that: The heat dissipation mechanism also includes a mounting plate installed between the air outlet and the radiator, and an air hole is formed on the mounting plate. The heat dissipation fan is installed on the mounting plate and connected to the air hole to suck the outside air from the air inlet into the first chamber and discharge it from the air outlet after passing through the air hole.

4. The frequency converter for a loom according to claim 3, characterized in that: A box wall on the chassis forming the installation side is provided with an air inlet and an air outlet, the air inlet is arranged close to the air inlet, and the air outlet is arranged close to the air outlet, and the cooling fan can suck the outside air into the first chamber through the air inlet and the air inlet and discharge it from the air outlet and the air outlet after passing through the air hole.

5. The frequency converter for a loom according to claim 4, characterized in that: The air inlet and the air outlet are both installed with a first dustproof net.

6. The frequency converter for a loom according to claim 3, characterized in that: The air inlet and the air outlet are both equipped with a second dustproof net.

7. The frequency converter for a loom according to any one of claims 1 to 6, characterized in that: The radiator includes a heat sink and a plurality of heat sink fins, the heat sink is mounted on the heat conductive baffle, the plurality of heat sink fins are installed on the heat conductive baffle at intervals, and an air passage is formed between any two adjacent heat sink fins for external wind to pass through from the air inlet to the air outlet.

8. The frequency converter for a loom according to any one of claims 1 to 6, characterized in that: The frequency conversion module includes a keyboard module, a control module and an IGBT module. An operation port is provided on a box wall of the chassis forming the operation side. The keyboard module is arranged corresponding to the operation port. The keyboard module, the control module and the IGBT module are arranged in sequence from the operation side to the installation side, and the keyboard module and the IGBT module are both connected to the control module signal.

9. The frequency converter for a loom according to claim 8, characterized in that: The IGBT module includes a circuit board and a plurality of electronic components electrically connected to the circuit board. The plurality of electronic components are arranged at intervals along the height direction of the chassis, and the circuit board is connected to the control module signal.

10. A loom, characterized in that: The frequency converter for a loom as claimed in any one of claims 1 to 9 is used.

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