Induction brazing heating coil device

Abstract

The invention provides an induction brazing heating coil device which comprises a coil part and a first connecting part, one end of the coil part is connected with one end of the first connecting part, an included angle is formed between the coil part and the first connecting part, and the coil part and the first connecting part intersect to form an L shape. According to the induction brazing heating coil device, the L-shaped coil structure is adopted, so that the situation that an existing linear induction coil interferes with compressor feet near connection operation during opening and closing during connection operation between a liquid storage device air inlet connecting pipe and a compressor shell can be effectively avoided, and when the coil is opened and closed, a first connecting part of the L-shaped coil structure is connected with a second connecting part of the L-shaped coil structure; the bottom feet can penetrate through the positions above the bottom feet, so that interference is avoided, and the working efficiency can be effectively improved through the technical scheme.

Description

Technical Field

[0001] The present invention relates to the field of welding equipment, and more particularly, to an induction brazing heating coil device suitable for a compressor. Background Art

[0002] The traditional welding process for refrigerator compressors uses manual flame brazing with silver electrodes. Flame brazing has a high temperature and fast heating, but it is also prone to problems such as uneven heating and overheating; silver electrodes are costly, the consumption of manual brazing electrodes cannot be guaranteed, and problems such as welding leakage and welding blockage are likely to occur, followed by rework, repair, scrapping, and the waste of silver electrodes again. Therefore, flame brazing also requires a relatively high skill level of the operator.

[0003] Since the application of high-frequency induction welding machines, the high-frequency induction brazing process has enabled the welding technology of compressors to develop by leaps and bounds. Combining the application of an automatic wire feeder and an automatic spot welding flux device has even achieved automated welding and improved the manufacturing level of compressors.

[0004] Currently, when high-frequency induction brazing heating is used for the compressor liquid receiver, the workpiece is heated by an induction coil. Since the heating position is relatively close to the compressor foot, a straight-through induction coil will interfere with the foot. At the same time, in an openable and closable induction coil, the movable coil usually cooperates with a circular groove of the equipment fixing seat through a circular protrusion, and the opening and closing between the movable coil and the fixed coil are only achieved by rotating after the protrusion and the groove are matched. Over time, it is easy to wear and get stuck, which greatly affects the work efficiency and quality. Summary of the Invention

[0005] Aiming at the problems in the prior art, the purpose of the present invention is to provide an induction brazing heating coil device that improves work efficiency and effectiveness.

[0006] According to the present invention, there is provided an induction brazing heating coil device, including a coil part and a first connection part, one end of the coil part is connected to one end of the first connection part, and there is an included angle between the coil part and the first connection part and they intersect to form an L shape.

[0007] Preferably: the coil part and the first connection part are perpendicular to each other.

[0008] Preferably: it further includes a second connection part, one end of the second connection part is connected to the other end of the first connection part, and there is an included angle between the second connection part and the first connection part and they intersect to form an L shape.

[0009] Preferably: the coil part, the first connection part and the second connection part are sequentially connected and form a Z shape.

[0010] Preferably, a cooling water channel is provided in the coil part. A partition is provided in the cooling water channel along the extending direction, dividing the cooling water channel into a water inlet channel and a water outlet channel. A circulation hole is provided on the partition to communicate the water inlet channel and the water outlet channel. The adoption of the waterway structure design can ensure that the coil can be quickly cooled during the heating process.

[0011] Preferably, the partition divides the cooling water channel in the coil part into the water inlet channel and the water outlet channel longitudinally, and the circulation hole is located at the end of the coil part away from the first connecting part.

[0012] Preferably, the coil part includes a first coil and a second coil that can be opened and closed.

[0013] Preferably, the shape of the coil part is annular, and the shapes of the first coil and the second coil are both semi-annular.

[0014] Preferably, it further includes a bushing structure. The bushing structure includes a movable block, a fixed seat, and a bushing. One end of the first coil is connected to the movable block. The other end of the movable block is provided with a movable hole that cooperates with the bushing. The fixed seat is provided with a shaft hole that cooperates with the bushing. The bushing is arranged in the movable hole and the shaft hole, and the movable block rotates in contact with the fixed seat. The bushing structure can effectively ensure the flexibility of the opening and closing rotating shaft and avoid jamming between the movable block and the fixed seat due to damage.

[0015] Preferably, the connection mode between the movable block and the fixed seat is a connection of an annular protrusion and an annular groove.

[0016] Preferably, it further includes a spring pressing structure. The spring pressing structure includes a spring and a bolt. The bolt passes through the spring, the movable block, and the fixed seat in sequence and is fixed, elastically pressing the movable block on the fixed seat. The up and down positioning is realized through the spring pressing structure, ensuring that the movable block can effectively contact the fixed seat to realize current transmission when the opening and closing coil rotates.

[0017] The induction brazing heating coil device of the present invention adopts an L-shaped coil structure, which can effectively avoid the interference between the existing linear induction coil and the compressor foot near the connection operation when connecting the intake connecting pipe of the liquid storage tank and the compressor housing. When the first connecting part of the L-shaped coil structure of the present invention opens and closes the coil, it can pass through from above the foot, thus avoiding interference. The technical solution of the present invention can effectively improve the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects, and advantages of the present invention will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings.

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0020] Figure 2 is a partial structural schematic diagram of an embodiment of the present invention;

[0021] Figure 3 is a structural schematic diagram of the first coil of an embodiment of the present invention;

[0022] Figure 4 is a structural schematic diagram of the bushing structure of an embodiment of the present invention;

[0023] Figure 5 is a structural schematic diagram of the fixed seat of the bushing structure of an embodiment of the present invention.

[0024] Reference numerals

[0025] 1 Coil part

[0026] 2 First connection part

[0027] 3 Second connection part

[0028] 4 Partition

[0029] 5 First coil

[0030] 6 Second coil

[0031] 7 Movable block

[0032] 8 Fixed seat

[0033] 9 Bushing

[0034] 10 Spring

[0035] 11 Spring rod Detailed implementation manners

[0036] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their repeated description will be omitted.

[0037] As Figure 1 and Figure 2 shown, in an embodiment of the present invention, an induction brazing heating coil device is provided, which includes a coil part 1 and a first connection part 2.

[0038] One end of the coil part 1 is connected to one end of the first connection part 2, and there is an included angle between the coil part 1 and the first connection part 2 and they intersect to form an L shape.

[0039] In the embodiment of the present invention, by adopting an L-shaped coil structure, the coil part 1 and the first connecting part 2 form an angle and are bent with respect to the first connecting part 2, so that it is convenient to extend the coil part 1 into a narrow space, and it can effectively avoid interference between the induction coil and the compressor part, especially the feet of the compressor liquid receiver, during the welding process.

[0040] As Figure 2 shown in [relevant reference], in the embodiment of the present invention, it is preferred that the coil part 1 and the first connecting part 2 are perpendicular to each other, so that the projected area is the smallest, which is convenient for space operation and avoids interference.

[0041] Another example, as Figure 1 and Figure 2 shown in [relevant reference], in the embodiment of the present invention, it is preferably further provided with a second connecting part 3. One end of the second connecting part 3 is connected to the other end of the first connecting part 2. The second connecting part 3 and the first connecting part 2 form an angle and intersect to form an L shape. And it is preferably that the coil part 1, the first connecting part 2 and the second connecting part 3 are connected in sequence and the whole is in a Z shape, and more preferably perpendicular to each other in sequence, so that it is more conducive to operation in a narrow space.

[0042] As Figure 3 shown in [relevant reference], in the embodiment of the present invention, it is preferred that a cooling water channel is provided in the coil part 1, and the cooling water channel extends along the length direction of the coil part 1. And it is preferably provided with a partition 4 along the extending direction of the cooling water channel, which can divide the cooling water channel into an inlet water channel and an outlet water channel, so as to carry out circulating cooling. Optionally, the partition divides the coil part 1 into two flow channels in the longitudinal direction, the upper part is the inlet water channel, and the lower part is the outlet water channel. The partition 4 is provided with circulation holes, preferably located at the other end of the coil part 1, that is, the end, for connecting the inlet and outlet water channels, which is conducive to water circulation. And it is preferably that the first connecting part 2 and the second connecting part 3 are also provided with inlet and outlet water channels, which are respectively connected to the inlet and outlet water channels of the coil, to ensure that the coil device can be quickly cooled during the heating process. Further, optionally, the inlet and outlet cooling water channels in the first connecting part 2 and the second connecting part 3 are arranged side by side. The cooling water channel is connected to a water pumping device, and the cooling water is driven to circulate and cool by the water pumping device.

[0043] In addition, as Figure 1 and Figure 2As shown, in an embodiment of the present invention, preferably, the coil part 1 includes a first coil 5 and a second coil 6 that can be opened and closed. And preferably, the shape of the coil part 1 is annular or circular, and the shapes of the first coil 5 and the second coil 6 are both semi-annular or semi-circular. Further preferably, the first coil 5 is a movable coil, and the second coil 6 is a fixed coil, that is, the opening and closing with the second coil 6 is achieved through the movement of the first coil 5. Corresponding to the first coil 5, a first connecting arm is connected, and the first connecting arm includes the first connecting part 2 and the second connecting part 3; corresponding to the second coil 6, a second connecting arm is connected, and the second connecting arm includes another first connecting part 2 and another second connecting part 3. That is to say, when the first coil 5 is a movable coil, it is connected and movable through the first connecting arm.

[0044] As Figure 4 shown, in an embodiment of the present invention, preferably, the first coil 5 is connected to a bushing structure, and the opening and closing action is achieved through the bushing structure. The bushing structure includes a movable block 7, a fixed seat 8, and a bushing 9.

[0045] One end of the first coil 5 is connected to one end of the movable block 7, and the other end of the movable block 7 is provided with a movable hole that cooperates with the bushing 9. The fixed seat 8 is provided with a shaft hole that cooperates with the bushing 9. When installed, the bushing 9 is inserted into the movable hole and the shaft hole, and the movable block 7 is rotatably arranged on the fixed seat 8 through the cooperation of the movable block 7, the bushing 9, and the fixed seat 8. And preferably, the movable block 7 is rotatably sleeved on the bushing 9, and at this time, the fixed seat 8 and the bushing 9 can be rotatably or fixedly connected. Of course, when the movable block 7 is fixedly connected to the bushing 9, at this time, the fixed seat 8 and the bushing 9 need to be rotatably connected to ensure flexible opening and closing.

[0046] In an embodiment of the present invention, preferably, a spring pressing structure is further included. One end of the spring pressing structure is connected to the other end of the movable block 7, and the other end is connected to the fixed seat 8. Through the spring pressing structure, the end face of the movable block 7 facing the fixed seat is elastically pressed on the fixed seat 8. So that the upper and lower surfaces of the movable block 7 and the fixed seat 8 are effectively in contact, while ensuring effective current transmission, the pressing force is controlled by the spring to avoid problems such as excessive rotational friction caused by excessive pressing and further damage and jamming. Another combination is as Figure 4As shown in the figure, to prevent the movable block 7 and the fixed seat 8 from axially moving along the bushing 9 and to press the movable block 7 and the fixed seat 8 tightly, the spring pressing structure preferably includes a spring rod 11 and a spring 10 sleeved on the spring rod 11. An axial through hole is provided in the bushing 9, and the spring rod 11 passes through the axial through hole of the bushing 9, so as to ensure that the spring 10 on the spring rod 11 can apply a driving force in the axial direction of the bushing 9. One end of the spring rod 11 is connected to the fixed seat 8, the other end is connected to one end of the spring 10, and the other end of the spring 10 is connected to the other end of the movable block 7. The other end of the spring rod 11 and the other end of the movable block 7 press the spring 10, and through the elastic force of the spring 10, the other end of the movable block 7 is pressed tightly along the spring rod 11, that is, the axial through hole direction of the bushing 9, so as to be pressed tightly against the fixed seat 8, ensuring that when the opening and closing coil rotates, it can effectively contact the fixed seat to realize current transfer.

[0047] In addition, for convenient fixation, it is preferred that the spring rod 11 is a bolt. The bolt is sequentially inserted into the spring and the bushing 9, and the head and tail respectively pass through the movable block 7 and the fixed seat 8. After being fixed by nuts, the spring is pressed against the end face of the movable block 7. While ensuring effective contact between the end faces of the movable block 7 and the fixed seat 8, a certain amount of elasticity is provided between the two, ensuring rotation.

[0048] In addition, it is preferred that the bushing 9 is made of copper. Adopting the copper bushing structure form can effectively ensure the flexibility of the opening and closing rotating shaft, and at the same time ensure the contact area between the opening and closing coil and the fixed seat, ensuring effective current transfer.

[0049] In the embodiment of the present invention, it is preferred that the movable block 7 is connected to the first connecting arm. Specifically, the movable block 7 is connected to the second connecting portion 3. When the movable block 7 rotates, it drives the first connecting arm to rotate, drives the movable coil to rotate, and realizes the opening and closing of the first coil and the second coil of the coil portion 1.

[0050] Another example is Figure 5 As shown in the figure, a connection method of a ring-shaped protrusion and a ring-shaped groove is adopted between the movable block 7 and the fixed seat 8. In the embodiment of the present invention, it is preferred that the other end of the movable block 7 is further provided with a ring-shaped protrusion, and the fixed seat 8 is further provided with a ring-shaped groove matching the ring-shaped protrusion, and vice versa. Through the cooperation of the ring-shaped protrusion and the ring-shaped groove, the movable block 7 can be rotatably sleeved on the bushing 9, and the end faces of the ring-shaped protrusion and the ring-shaped groove are in effective contact, ensuring effective current transfer. The design of the bushing 9 reduces the rotational friction between the ring-shaped protrusion and the ring-shaped groove, avoiding damage and jamming.

[0051] In summary, the technical solution of the embodiment of the present invention adopts an L-shaped coil structure, which can effectively avoid the interference between the existing straight induction coil and the compressor foot near the connection operation when connecting the gas inlet connecting pipe of the liquid reservoir and the compressor housing. When the first connecting part of the L-shaped coil structure of the present invention opens and closes, it can pass through from above the foot, thus avoiding interference. The technical solution of the present invention can effectively improve work efficiency. Further, the adoption of the waterway structure, the bushing structure, and the spring pressing structure effectively improves the work efficiency and reliability.

[0052] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. An induction brazing heating coil device, characterized in that: It includes a coil part and a first connecting part. One end of the coil part is connected to one end of the first connecting part. There is an included angle between the coil part and the first connecting part and they intersect to form an L shape.

2. The induction brazing heating coil device according to claim 1, characterized in that: It further includes a second connecting part. One end of the second connecting part is connected to the other end of the first connecting part. There is an included angle between the second connecting part and the first connecting part and they intersect to form an L shape.

3. The induction brazing heating coil device according to claim 2, characterized in that: The coil part, the first connecting part and the second connecting part are connected in sequence and form a Z shape.

4. The induction brazing heating coil device according to claim 1, characterized in that: A cooling water channel is provided in the coil part. A partition is provided in the cooling water channel along the extending direction, separating the cooling water channel into a water inlet channel and a water outlet channel. A circulation hole is provided on the partition to connect the water inlet channel and the water outlet channel.

5. The induction brazing heating coil device according to claim 4, characterized in that: The partition separates the cooling water channel in the coil part longitudinally into the water inlet channel and the water outlet channel. The circulation hole is located at the end of the coil part away from the first connecting part.

6. The induction brazing heating coil device according to claim 1, characterized in that: The coil part includes a first coil and a second coil that can be opened and closed.

7. The induction brazing heating coil device according to claim 6, characterized in that: The shape of the coil part is annular, and the shapes of the first coil and the second coil are both semi-annular.

8. The induction brazing heating coil device according to claim 6, characterized in that: It further includes a bushing structure. The bushing structure includes a movable block, a fixed seat and a bushing. The first coil is connected to one end of the movable block. The other end of the movable block is provided with a movable hole that cooperates with the bushing. The fixed seat is provided with a shaft hole that cooperates with the bushing. The bushing is arranged in the movable hole and the shaft hole, and the movable block rotates in contact with the fixed seat.

9. The induction brazing heating coil device according to claim 8, characterized in that: The connection method between the movable block and the fixed seat is by means of a ring-shaped protrusion and a ring-shaped groove.

10. The induction brazing heating coil device according to claim 8, characterized in that: It further includes a spring pressing structure. The spring pressing structure includes a spring and a bolt. The bolt passes through the spring, the movable block and the fixed seat in sequence and is fixed, elastically pressing the movable block on the fixed seat.

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