Output side tube shell of magnetron

Abstract

The utility model discloses an output side tube shell of a magnetron, which comprises a sleeve body, the lower end of the sleeve body is connected with a flange plate, the flange plate is provided with flanging holes, the flanging holes are distributed around the axis of the sleeve body, and the flanging holes form an upper flanging wall body; the ceramic nails are used for being in contact with the end faces of the magnetic blocks and are arranged in the corresponding flanging holes, the upper ends of the ceramic nails penetrate out of the upturning wall body, and the ceramic nails are fixedly connected with the upturning wall body. According to the utility model, the heat transferred from the output side tube shell to the magnetic block can be further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of magnetron, concretely relates to a magnetron output side tube shell. BACKGROUND

[0002] At present, the microwave oven is provided with a magnetron, the magnetron is provided with an output side tube shell, for example, can refer to the "magnetron" of Chinese invention patent publication No. CN108701572B, the magnetron is provided with an output side ceramic tube seat, and the output side ceramic tube seat is correspondingly connected with a side tube (namely the output side tube shell described above), and for example, the "magnetron" of Chinese utility model patent publication No. CN217081897U, the magnetron is provided with an end shell (equivalent to the "side tube" described above), and the connecting plate of the end shell is formed with a convex point, and the convex point is used to contact a magnetic block, so that the magnetic block is separated from the connecting plate to reduce the heat transfer from the connecting plate to the magnetic block. The end shell is made of steel, and the convex point is formed on the connecting plate by stamping process, so the heat transfer performance of the convex point is good, although the heat transferred to the magnetic block from the connecting plate is reduced, but the heat transferred to the magnetic block is more concentrated, which is easy to cause the local high temperature of the magnetic block and break, so the output side tube shell of the prior art needs to be improved. SUMMARY

[0003] The utility model aims at overcoming the defects of prior art, providing a magnetron output side tube shell, which can further reduce the heat transferred to the magnetic block from the output side tube shell.

[0004] The utility model discloses a magnetron output side tube shell, which comprises a sleeve body, a flange plate is connected to the lower end of the sleeve body, wherein a flange hole is formed on the flange plate, the flange hole is arranged around the axis of the sleeve body, and an upper flange wall is formed on the flange hole; further comprising a porcelain nail for contacting the end face of the magnetic block, the porcelain nail is arranged in the corresponding flange hole, the upper end of the porcelain nail penetrates out of the upper flange wall, and the porcelain nail is fixedly connected with the upper flange wall.

[0005] Preferably, the lower end of the flange hole is formed with a rounded corner space, the lower end of the porcelain nail is formed with a flange, and the flange is arranged in the rounded corner space.

[0006] Preferably, the lower end of the porcelain nail is flush with the bottom surface of the flange plate.

[0007] Preferably, the porcelain nail is in interference fit with the upper flange wall.

[0008] Preferably, the porcelain nail is in interference fit with the upper flange wall.

[0009] Preferably, the porcelain nail is in interference fit with the upper flange wall.

[0010] Preferably, the number of the flange holes is six, and the circumferentially adjacent flange holes are arranged radially staggered.

[0011] The utility model discloses a flange plate is provided with flange hole, and the flange hole is distributed around the axis of sleeve body, and the flange hole is formed with upper turning wall body, and the porcelain nail for contacting the end surface of magnetic block is arranged, the porcelain nail is arranged in the corresponding flange hole, the upper end of porcelain nail is out of upper turning wall body, and the porcelain nail is fixedly connected with upper turning wall body, can make the heat of output side pipe shell further reduce that is transmitted to magnetic block. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the sectional structure schematic view of output side pipe shell of the utility model.

[0013] Figure 2 It is Figure 1 the partial structure schematic view of A.

[0014] Figure 3 It is the overhead structure schematic view of output side pipe shell of the utility model.

[0015] Label explanation: sleeve body 1, top plate 2, convex ring 21, positioning pipe part 3, flange plate 4, flange hole 41, upper turning wall body 411, fillet clearance 4101, porcelain nail 5, flange 51, brazing seam 6, magnetic block 99, output side porcelain sleeve 98. DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with the drawings.

[0017] The output side pipe shell of the magnetron of the utility model, as shown in Figure 1 , including sleeve body 1, and the lower end of sleeve body 1 integrally connects flange plate 4, as shown in Figure 1 And Figure 2 , flange plate 4 is formed with flange hole 41, and flange hole 41 is formed by stamping process, and flange hole 41 is distributed around the axis of sleeve body 1, and flange hole 41 is formed with upper turning wall body 411, that is to say, the hole wall of flange hole 41 is upper turning wall body 411, as shown in Figure 2 , the output side pipe shell still includes porcelain nail 5 for contacting the end surface of magnetic block 99, that is to say, porcelain nail 5 is made of ceramic, and porcelain nail 5 is arranged in the corresponding flange hole 41, and the upper end of porcelain nail 5 is out of upper turning wall body 411, so that the upper end surface of porcelain nail 5 can contact magnetic block 99, and porcelain nail 5 is fixedly connected with upper turning wall body 411.

[0018] As shown in Figure 1 And Figure 2As shown, due to the upper end of the porcelain nail 5 passing through the upward wall body 411, the upper end surface of the porcelain nail 5 is close to the flange 4 relative to the blocking magnetic block 99, so that the flange 4 and the magnetic block 99 have an air layer therebetween, and the air layer plays a heat insulation role. Since the heat transfer performance of the porcelain nail 5 is poor (compared with the prior art), the heat of the flange 4 is not easily transmitted to the magnetic block 99 through the porcelain nail 5, thereby further reducing the heat transmitted from the output side shell to the magnetic block, and the local heating intensity of the magnetic block 99 is also reduced, which can avoid the local overheating of the magnetic block 99 and cause the magnetic block 99 to break.

[0019] Further, as shown in Figure 2 , the lower end of the flange hole 41 is formed with a round corner space 4101. Specifically, the lower end of the flange hole 41 is formed with a round corner at the hole opening, and the round corner space 4101 is the space inside the round corner. The lower end of the porcelain nail 5 is formed with a flange 51, and the flange 51 is arranged in the round corner space 4101. Thus, when the porcelain nail 5 is inserted into the flange hole 41 from the bottom to the top, the round corner can block the positioning flange 51.

[0020] Further, as shown in Figure 2 , the lower end surface of the porcelain nail 5 is flush with the bottom surface of the flange 4. Thus, during the installation of the porcelain nail 5, the porcelain nail 5 is first inserted into the flange hole 41 from the bottom to the top, and then the flange 4 is placed on the assembly support surface, so that the bottom surface of the flange 4 is attached to the assembly support surface. The assembly support surface pushes the porcelain nail 5 upward, so that the lower end surface of the porcelain nail 5 is flush with the bottom surface of the flange 4, and the upper end surface of the porcelain nail 5 is positioned. Then, the porcelain nail 5 is fixedly connected with the flange hole 41, so that the upper end surfaces of the porcelain nails 5 can be (approximately) in the same plane. When the output side shell participates in the assembly process of the magnetron, it is beneficial to stably support the magnetic block 99 by the porcelain nail 5, and can avoid the shaking and loosening of the magnetic block 99.

[0021] In some embodiments, the porcelain nail 5 is in interference fit with the upward wall body 411. In other words, the minimum inner diameter of the upward wall body 411 is smaller than the outer diameter of the body of the porcelain nail 5. During the installation of the porcelain nail 5, the porcelain nail 5 is pressed into the flange hole 41, and the upward wall body 411 is slightly squeezed by the porcelain nail 5 during the pressing, thereby fixing the porcelain nail 5. The fixing structure of the porcelain nail 5 is simple, and the porcelain nail 5 is convenient to install.

[0022] In some embodiments, the porcelain nail 5 is brazed with the upward wall body 411. As shown in Figure 2 , a brazing seam 6 can be arranged between the upper end of the upward wall body 411 and the outer wall of the porcelain nail 5. The material of the brazing seam 6 can be copper. The arrangement is beneficial to the stable connection of the porcelain nail 5 and the upward wall body 411.

[0023] In some embodiments, the porcelain nail 5 and the upward wall body 411 can be connected by an adhesive, so that the connection cost is relatively low.

[0024] Further, as shown in Figure 3 the number of the flange holes 41 is six, and the circumferentially adjacent flange holes 41 are arranged radially staggered, that is to say, in the circumferential direction about the axis of the sleeve body 1, the flange holes 41 are distributed with an interval of 60°, but any two circumferentially adjacent flange holes 41 are different in distance from the axis of the sleeve body 1, which is conducive to increasing the range of supporting the magnet 99 in the radial direction and further avoiding the shaking and loosening of the magnet 99; in the prior art, there is a case that the protrusions are provided in four groups, and the number of protrusions in each group is two, and the four groups of protrusions are distributed with an interval of 90°, so that the total number of protrusions is eight, although two protrusions in a group can increase the range of supporting the magnetic block, but there is a support void of about 90° for the magnetic block, compared with this, in the present embodiment, although the number of the porcelain nails 5 is less, but the range of the support void for the magnetic block 99 is reduced, which can better avoid the shaking and loosening of the magnetic block 99, and the positions of the porcelain nails 5 contacting the magnetic block 99 are more dispersed, avoiding the rupture of the magnetic block 99 caused by too large temperature difference in different regions.

[0025] As shown in Figure 3 , it can be that three of the flange holes 41 are uniformly distributed on a first circle, and the other three flange holes 41 are uniformly distributed on a second circle, and the first circle and the second circle are concentric circles.

[0026] As shown in Figure 1 , the upper end of the sleeve body 1 is provided with a top plate 2, the top plate 2 is provided with a convex ring 21, and the top plate 2 is formed with a center hole, and the edge of the center hole is integrally connected with a positioning tube part 3, the upper end of the positioning tube part 3 protrudes upward from the convex ring 21, the lower end surface of the output side porcelain sleeve 98 abuts against the convex ring 21, and the positioning tube part 3 is inserted into the lower end of the output side porcelain sleeve 98.

Claims

1. An output-side housing for a magnetron, comprising a sleeve (1), wherein a flange (4) is connected to the lower end of the sleeve (1), characterized in that: The flange (4) has a flange hole (41) formed on it. The flange hole (41) is distributed around the axis of the sleeve (1). The flange hole (41) forms an upper flanged wall (411). It also includes a ceramic nail (5) for contacting the end face of the magnetic block (99). The ceramic nail (5) is located in the corresponding flange hole (41). The upper end of the ceramic nail (5) passes through the upper flanged wall (411). The ceramic nail (5) is fixedly connected to the upper flanged wall (411).

2. The output-side housing of the magnetron according to claim 1, characterized in that: The lower end of the flanged hole (41) has a rounded corner opening (4101), and the lower end of the ceramic nail (5) has a flange (51), which is located in the rounded corner opening (4101).

3. The output-side housing of the magnetron according to claim 2, characterized in that: The lower end face of the ceramic nail (5) is flush with the bottom face of the flange (4).

4. The output-side housing of the magnetron according to claim 1, characterized in that: The ceramic nail (5) is interference-fitted with the upturned wall body (411).

5. The output-side housing of the magnetron according to claim 1, characterized in that: The ceramic nail (5) is brazed to the upper wall body (411).

6. The output-side housing of the magnetron according to claim 1, characterized in that: The number of the flanged holes (41) is set to six, and the flanged holes (41) that are circumferentially adjacent are arranged radially offset.

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