Linear compressor three-section magnetic steel bonding tool and manufacturing method thereof

Abstract

The invention discloses a linear compressor three-section type magnetic steel bonding tool and a manufacturing method thereof. The linear compressor three-section type magnetic steel bonding tool comprises a bottom plate, a center fixing base, a fixing base mechanism, magnetic steel and a magnetism isolating ring. The bottom plate is fixedly connected with the center fixing seat, and the fixing seat mechanism is arranged on the outer side of the center fixing seat in a sleeving mode. The magnetic steel comprises main magnetic steel and auxiliary magnetic steel, the fixing seat mechanism comprises a main magnetic steel fixing seat assembly and an auxiliary magnetic steel fixing seat assembly, the main magnetic steel is fixedly arranged between the main magnetic steel fixing seat assembly and the central fixing seat, and the auxiliary magnetic steel is fixedly arranged between the auxiliary magnetic steel fixing seat assembly and the central fixing seat; wherein the magnetic isolation ring is arranged between the main magnetic steel and the auxiliary magnetic steel, and the magnetic isolation ring sleeves the outer side of the central fixing seat and is fixedly connected with the main magnetic steel or the auxiliary magnetic steel, so that the manufacturing precision of the magnetic steel is improved, and the structure is firmer.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of linear compressors, and particularly relates to a three-section magnetic steel bonding tool for a linear compressor and a manufacturing method thereof. BACKGROUND

[0002] The magnetic steel assembly of the linear compressor is designed in a three-section type, which can reduce eddy current and improve motor efficiency. In the prior art, the magnetic steel is fixed on the mover skeleton by using glue, which is not convenient to install, cannot guarantee the coaxiality of the three-section magnetic steel, and gradually loses the adhesive effect under high temperature after long-time use, so that the magnetic steel is prone to falling off. In addition, the three-section magnetic steel structure has poor stability, poor coaxiality, is prone to cracking, and is difficult to manufacture.

[0003] Therefore, it is urgent to design a three-section magnetic steel bonding tool for a linear compressor and a manufacturing method thereof to solve the above problems. SUMMARY

[0004] The application aims to provide a three-section magnetic steel bonding tool for a linear compressor and a manufacturing method thereof, which has the advantages of simple structure, convenient operation and high machining precision, and solves the problems of poor stability, poor coaxiality, easy cracking and high manufacturing difficulty of the three-section magnetic steel structure.

[0005] To achieve the above-mentioned purpose, the technical scheme of the three-section magnetic steel bonding tool for a linear compressor is as follows: The three-section magnetic steel bonding tool for a linear compressor comprises a bottom plate, a center fixing seat, a fixing seat mechanism, magnetic steel and a magnetic gap ring. The bottom plate is fixedly connected with the center fixing seat, and the fixing seat mechanism is sleeved outside the center fixing seat. The magnetic steel comprises main magnetic steel and auxiliary magnetic steel, the fixing seat mechanism comprises a main magnetic steel fixing seat assembly and an auxiliary magnetic steel fixing seat assembly, the main magnetic steel is fixed between the main magnetic steel fixing seat assembly and the center fixing seat, and the auxiliary magnetic steel is fixed between the auxiliary magnetic steel fixing seat assembly and the center fixing seat. The magnetic gap ring is sleeved outside the center fixing seat and fixedly connected with the main magnetic steel or the auxiliary magnetic steel.

[0006] Further, the main magnetic steel fixing seat assembly comprises a first positioning hole and a first replacement block, the first replacement block penetrates through the first positioning hole and is detachably connected with the first positioning hole.

[0007] Further, the auxiliary magnetic steel fixing seat assembly comprises a second positioning hole and a second replacement block, the second replacement block penetrates through the second positioning hole and is detachably connected with the second positioning hole.

[0008] Further, the main magnetic steel is fixedly arranged in the middle section of the center fixed seat, and the auxiliary magnetic steel is fixedly arranged in the upper section and the lower section of the center fixed seat.

[0009] Further, the linear compressor three-section magnetic steel bonding tool further comprises a magnetic steel end face fixing ring, which is fixedly arranged at the upper end or the lower end of the auxiliary magnetic steel.

[0010] Further, the linear compressor three-section magnetic steel bonding tool further comprises a limiting pin, the upper end and the lower end of the main magnetic steel, the auxiliary magnetic steel and the magnetic shield ring are provided with pin holes, and the pin holes and the limiting pin are in clearance fit.

[0011] Further, the clearance between the pin hole and the limiting pin is 0.04-0.06mm.

[0012] Further, the magnetic shield ring is radially limited by the limiting pin and axially fixed by epoxy resin adhesive between the main magnetic steel and the auxiliary magnetic steel.

[0013] A linear compressor three-section magnetic steel manufacturing method, comprising the following steps: S1: Assemble and fix the bottom plate, the center fixed seat and the auxiliary magnetic steel fixed seat assembly, and insert the second replacement block into the second positioning hole; S2: Put the auxiliary magnetic steel into the corresponding position of the second replacement block, after the auxiliary magnetic steel abuts against the second replacement block, pull out the second replacement block, press the auxiliary magnetic steel between the auxiliary magnetic steel fixed seat assembly and the center fixed seat, until the auxiliary magnetic steel abuts against the bottom plate; S3: After the multiple auxiliary magnetic steels of the lower section are installed by repeating step S2, brush epoxy resin adhesive on the upper end face of the auxiliary magnetic steel; S4: Insert the limiting pin into the pin hole at the upper end of the auxiliary magnetic steel, after the pin hole at the lower end of the magnetic shield ring is aligned with the limiting pin and is pressed in, the lower end face of the magnetic shield ring abuts against the upper end face of the auxiliary magnetic steel; S5: Fix the main magnetic steel fixed seat assembly, insert the first replacement block into the first positioning hole, put the main magnetic steel into the corresponding position of the first replacement block, after the main magnetic steel abuts against the first replacement block, pull out the first replacement block, press the main magnetic steel between the main magnetic steel fixed seat assembly and the center fixed seat, until the main magnetic steel abuts against the magnetic shield ring; S6: After the multiple main magnetic steels of the middle section are installed by repeating step S5, brush epoxy resin adhesive on the upper end face of the main magnetic steel; S7: Repeat step S4 until the lower end face of the magnetic shield ring abuts against the upper end face of the main magnetic steel; S8: Fix the sub-magnetic steel fixing seat assembly, insert the second replacement block into the second positioning hole, and put the sub-magnetic steel into the corresponding position of the second replacement block. After the sub-magnetic steel abuts against the second replacement block, the second replacement block is pulled out, and the sub-magnetic steel is pressed into the sub-magnetic steel fixing seat assembly and the center fixing seat until the sub-magnetic steel abuts against the magnetic ring; S9: After the installation of the multiple sub-magnetic steels of the upper segment is completed, the epoxy resin glue is brushed on the upper end surface of the sub-magnetic steel of the upper segment, the installed three-segment magnetic steel is placed in the oven for baking, and the epoxy resin glue is dried and fixed. Then, the bonding tool is removed.

[0014] Further, step S9 further includes the following steps: S91: After the epoxy resin glue is brushed on the upper end surface of the sub-magnetic steel of the upper segment, the limiting pin is inserted into the pin hole, the pin hole on the magnetic steel end surface fixing ring is aligned with the limiting pin and is pressed in, and abuts against the upper end surface of the sub-magnetic steel of the upper segment; S92: The entire bonding tool is inverted, the bottom plate is removed, the lower end surface of the sub-magnetic steel of the lower segment faces upward, the epoxy resin glue is brushed on the lower end surface of the sub-magnetic steel of the lower segment, and step S91 is repeated so that the magnetic steel end surface fixing ring abuts against the lower end surface of the sub-magnetic steel of the lower segment. After the entire linear compressor three-segment magnetic steel is pressed tightly upward and downward, it is placed in the oven for baking.

[0015] The linear compressor three-segment magnetic steel bonding tool and the manufacturing method thereof have the following advantages: 1. For the manufacturing of the three-layer magnetic steel, an integrated assembly method is adopted to solve the problem of poor coaxiality of the three-layer magnetic steel.

[0016] 2. The first replacement block is arranged on the side of the main magnetic steel fixing seat assembly to limit the main magnetic steel, and the second replacement block is arranged on the side of the sub-magnetic steel fixing seat assembly to limit the sub-magnetic steel, so as to facilitate the extraction and fixation of the main magnetic steel and the sub-magnetic steel.

[0017] 3. The main magnetic steel fixing seat assembly and the sub-magnetic steel fixing seat assembly are limited by the boss and the groove, so as to ensure the coaxiality between the main magnetic steel fixing seat assembly and the sub-magnetic steel fixing seat assembly and improve the machining precision of the magnetic steel. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a partial three-dimensional structure diagram of the linear compressor three-segment magnetic steel bonding tool of the application; Figure 2 It is an explosion diagram of the partial structure diagram of the linear compressor three-segment magnetic steel bonding tool of the application; Figure 3 It is a partial plane structure diagram of the linear compressor three-segment magnetic steel bonding tool of the application; Figure 4Structure schematic view of main magnetic steel fixing seat assembly of linear compressor three-section magnetic steel bonding tool of the application; Figure 5 Structure schematic view of auxiliary magnetic steel fixing assembly of linear compressor three-section magnetic steel bonding tool of the application.

[0019] Mark explanation in the figure: 1, bottom plate; 2, center fixing seat; 3, fixing seat mechanism; 31, main magnetic steel fixing seat assembly; 311, first positioning hole; 312, first replacement block; 313, groove; 32, auxiliary magnetic steel fixing seat assembly; 321, second positioning hole; 322, second replacement block; 323, boss; 4, magnetic steel; 41, main magnetic steel; 42, auxiliary magnetic steel; 5, magnetic isolation ring; 6, magnetic steel end face fixing ring; 7, limit pin. DETAILED DESCRIPTION

[0020] To make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the application.

[0021] Those skilled in the art can understand that although some embodiments herein include certain features rather than other features included in other embodiments, the combination of features of different embodiments means to be within the scope of the application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0022] Reference will now be made to the drawings, in which Figure 1 to the drawings Figure 5 A linear compressor three-section magnetic steel bonding tool of the application is described, which comprises a bottom plate 1, a center fixing seat 2, a fixing seat mechanism 3, magnetic steels 4 and a magnetic isolation ring 5; The bottom plate 1 is fixedly connected with the center fixing seat 2, and the fixing seat mechanism 3 is sleeved outside the center fixing seat 2; The magnetic steels 4 include main magnetic steels 41 and auxiliary magnetic steels 42, the fixing seat mechanism 3 includes a main magnetic steel fixing seat assembly 31 and an auxiliary magnetic steel fixing seat assembly 32, the main magnetic steels 41 are fixedly arranged between the main magnetic steel fixing seat assembly 31 and the center fixing seat 2, and the auxiliary magnetic steels 42 are fixedly arranged between the auxiliary magnetic steel fixing seat assembly 32 and the center fixing seat 2; The main magnetic steel 41 and the auxiliary magnetic steel 42 are provided with a magnetic isolation ring 5, which is sleeved on the outside of the center fixed seat 2 and fixedly connected with the main magnetic steel 41 or the auxiliary magnetic steel 42.

[0023] In the embodiment, the coaxiality of the main magnetic steel 41 and the auxiliary magnetic steel 42 is ensured by cooperation of the bottom plate 1, the center fixed seat 2 and the fixed seat mechanism 3, so as to improve the machining precision of the magnetic steel 4.

[0024] Specifically, the upper end face and the lower end face of the main magnetic steel fixed seat assembly 31 are provided with grooves 313, and the upper end or the lower end of the auxiliary magnetic steel fixed seat assembly 32 is provided with a boss 323, which cooperates with the groove 313 to ensure the coaxiality between the main magnetic steel fixed seat assembly 31 and the auxiliary magnetic steel fixed seat assembly 32.

[0025] Specifically, the magnetic isolation ring 5 is made of carbon fiber material.

[0026] Specifically, the main magnetic steel 41 is arranged in the middle segment of the three-segment magnetic steel, and the auxiliary magnetic steel 42 is arranged in the upper segment and the lower segment of the three-segment magnetic steel, and each segment of the magnetic steel 4 is composed of 16 main magnetic steels 41 or auxiliary magnetic steels 42 to form a ring.

[0027] Specifically, the main magnetic steel fixed seat assembly 31 and the auxiliary magnetic steel fixed seat assembly 32 are both made of two halves. The main magnetic steel fixed seat assembly 31 and the auxiliary magnetic steel fixed seat assembly 32 are integrally cast and formed, then cut into two halves, and then spliced together to process the inner hole, and fixed by screwing through the inner hole and cooperating with the nut.

[0028] Further, the main magnetic steel fixed seat assembly 31 comprises a first positioning hole 311 and a first replacement block 312, the first replacement block 312 penetrates the first positioning hole 311, and is detachably connected with the first positioning hole 311.

[0029] In the embodiment, the first positioning hole 311 and the first replacement block 312 are arranged to facilitate positioning when the main magnetic steel 41 is installed.

[0030] Further, the auxiliary magnetic steel fixed seat assembly 32 comprises a second positioning hole 321 and a second replacement block 322, the second replacement block 322 penetrates the second positioning hole 321, and is detachably connected with the second positioning hole 321.

[0031] In the embodiment, the second positioning hole 321 and the second replacement block 322 are arranged to facilitate positioning when the auxiliary magnetic steel 42 is installed.

[0032] Further, the main magnetic steel 41 is fixedly arranged in the middle section of the center fixed seat 2, and the auxiliary magnetic steel 42 is fixedly arranged in the upper section and the lower section of the center fixed seat 2.

[0033] Further, the linear compressor three-section magnetic steel bonding tool further comprises a magnetic steel end face fixing ring 6, which is fixedly arranged at the upper end or the lower end of the auxiliary magnetic steel 42.

[0034] In the embodiment, by arranging the magnetic steel end face fixing ring 6, the two ends of the linear compressor three-section magnetic steel are fixed, and the auxiliary magnetic steel 42 is prevented from falling after the fixing tool is removed.

[0035] Further, the linear compressor three-section magnetic steel bonding tool further comprises a limiting pin 7, the upper end and the lower end of the main magnetic steel 41, the auxiliary magnetic steel 42 and the magnetic shielding ring 5 are provided with pin holes, and the pin holes and the limiting pin 7 are in clearance fit.

[0036] In the embodiment, by arranging the pin hole and the limiting pin 7 to cooperate, the magnetic steel 4 and the magnetic shielding ring 5 are prevented from rotating relative to each other during the work, the whole is firm, and the operation strength of the compressor is met.

[0037] Further, the clearance between the pin hole and the limiting pin 7 is 0.04-0.06mm.

[0038] Further, the magnetic shielding ring 5 and the main magnetic steel 41 and the auxiliary magnetic steel 42 are fixed in the radial direction by the limiting pin 7, and are fixed in the axial direction by epoxy resin glue bonding.

[0039] In the embodiment, the magnetic shielding ring 5, the main magnetic steel 41 and the auxiliary magnetic steel 42 are fixed by using epoxy resin glue, so that the linear compressor three-section magnetic steel is further prevented from generating radial force to cause the magnetic steel 4 and the magnetic shielding ring 5 to rotate in the radial direction during the work.

[0040] A linear compressor three-section magnetic steel manufacturing method comprises the following steps: S1: Assemble and fix the bottom plate 1, the center fixed seat 2 and the auxiliary magnetic steel fixing seat assembly 32, and insert the second replacement block 322 into the second positioning hole 321; S2: Put the auxiliary magnetic steel 42 into the corresponding position of the second replacement block 322, after the auxiliary magnetic steel 42 abuts against the second replacement block 322, pull out the second replacement block 322, press the auxiliary magnetic steel 42 into the auxiliary magnetic steel fixing seat assembly 32 and the center fixed seat 2, and until the auxiliary magnetic steel 42 abuts against the bottom plate 1; S3: After the multiple auxiliary magnetic steels 42 of the lower section are installed by repeating step S2, epoxy resin glue is brushed on the upper end face of the auxiliary magnetic steel 42; S4: Insert the limit pin 7 into the pin hole on the upper end of the auxiliary magnetic steel 42, align the pin hole on the lower end of the magnetic shield ring 5 with the limit pin 7, and press the limit pin 7 into the pin hole, so that the lower end surface of the magnetic shield ring 5 abuts against the upper end surface of the auxiliary magnetic steel 42; S5: Fix the main magnetic steel fixing seat assembly 31, insert the first replacement block 312 into the first positioning hole 311, and place the main magnetic steel 41 in the corresponding position of the first replacement block 312. After the main magnetic steel 41 abuts against the first replacement block 312, the first replacement block 312 is pulled out, the main magnetic steel 41 is pressed between the main magnetic steel fixing seat assembly 31 and the center fixing seat 2, and the main magnetic steel 41 abuts against the magnetic shield ring 5; S6: After the main magnetic steel 41 of the middle segment is installed by repeating step S5, epoxy resin glue is brushed on the upper end surface of the main magnetic steel 41; S7: Repeat step S4 until the lower end surface of the magnetic shield ring 5 abuts against the upper end surface of the main magnetic steel 41; S8: Fix the auxiliary magnetic steel fixing seat assembly 32, insert the second replacement block 322 into the second positioning hole 321, and place the auxiliary magnetic steel 42 in the corresponding position of the second replacement block 322. After the auxiliary magnetic steel 42 abuts against the second replacement block 322, the second replacement block 322 is pulled out, the auxiliary magnetic steel 42 is pressed between the auxiliary magnetic steel fixing seat assembly 32 and the center fixing seat 2, and the auxiliary magnetic steel 42 abuts against the magnetic shield ring 5; S9: After the auxiliary magnetic steel 42 of the upper segment is installed by repeating step S8, epoxy resin glue is brushed on the upper end surface of the auxiliary magnetic steel 42 of the upper segment, the installed three-segment magnetic steel is placed in an oven for baking, and after the epoxy resin glue is dried and fixed, the bonding tool is removed.

[0041] Further, step S9 further includes the following steps: S91: After the epoxy resin glue is brushed on the upper end surface of the auxiliary magnetic steel 42 of the upper segment, the limit pin 7 is inserted into the pin hole, the pin hole on the magnetic steel end surface fixing ring 6 is aligned with the limit pin 7 and pressed into the pin hole, and the upper end surface of the auxiliary magnetic steel 42 of the upper segment abuts against the upper end surface of the auxiliary magnetic steel 42 of the upper segment; S92: Invert the entire bonding tool, remove the bottom plate 1, and the lower end surface of the auxiliary magnetic steel 42 of the lower segment faces upward. After the epoxy resin glue is brushed on the lower end surface of the auxiliary magnetic steel 42 of the lower segment, step S91 is repeated, so that the magnetic steel end surface fixing ring 6 abuts against the lower end surface of the auxiliary magnetic steel 42 of the lower segment. After the entire three-segment magnetic steel of the linear compressor is pressed tightly, it is placed in an oven for baking.

[0042] Obviously, the above embodiments of the present application are merely example for clearly explaining the present application, and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A three-stage magnetic steel bonding tool for a linear compressor, characterized in that, The utility model relates to a magnetic steel fixing device for a magnetic motor, comprising: a base plate, a central fixing seat, a fixing seat mechanism, magnetic steels and a magnetic shield ring; the base plate is fixedly connected with the central fixing seat, and the fixing seat mechanism is sleeved outside the central fixing seat; the magnetic steels comprise main magnetic steels and auxiliary magnetic steels, the fixing seat mechanism comprises main magnetic steel fixing seat assemblies and auxiliary magnetic steel fixing seat assemblies, the main magnetic steels are fixedly arranged between the main magnetic steel fixing seat assemblies and the central fixing seat, and the auxiliary magnetic steels are fixedly arranged between the auxiliary magnetic steel fixing seat assemblies and the central fixing seat; wherein, the magnetic shield ring is sleeved outside the central fixing seat and is fixedly connected with the main magnetic steels or the auxiliary magnetic steels.

2. The linear compressor three-stage magnetic steel bonding tooling of claim 1, wherein, the main magnetic steel fixing seat assembly comprises a first positioning hole and a first replacement block, the first replacement block penetrates through the first positioning hole and is detachably connected with the first positioning hole.

3. The linear compressor three-stage magnetic steel bonding tooling of claim 1, wherein, the auxiliary magnetic steel fixing seat assembly comprises a second positioning hole and a second replacement block, the second replacement block penetrates through the second positioning hole and is detachably connected with the second positioning hole.

4. The linear compressor three-stage magnetic steel bonding tooling of claim 1, wherein, the main magnetic steels are fixedly arranged in the middle section of the central fixing seat, and the auxiliary magnetic steels are fixedly arranged in the upper section and the lower section of the central fixing seat.

5. The linear compressor three-stage magnetic steel bonding tooling of claim 4, wherein, a magnetic steel end face fixing ring is further arranged at the upper end or the lower end of the auxiliary magnetic steel.

6. The linear compressor three-stage magnetic steel bonding tooling of claim 1, wherein, a limiting pin is further arranged, the upper end and the lower end of the main magnetic steels, the auxiliary magnetic steels and the magnetic shield ring are provided with pin holes, and the pin holes and the limiting pin are in clearance fit.

7. The linear compressor three-stage magnetic steel bonding tooling of claim 6, wherein, the clearance between the pin hole and the limiting pin is 0.04-0.06 mm.

8. The linear compressor three-stage magnetic steel bonding tooling of claim 6, wherein, the magnetic shield ring is fixedly arranged in the radial direction by the limiting pin and is fixed in the axial direction by epoxy resin adhesive.

9. A method for manufacturing a three-segment magnetic steel of a linear compressor, using the bonding tool for a three-segment magnetic steel of a linear compressor according to any one of claims 1 to 8, characterized in that, the utility model relates to a magnetic steel fixing device for a magnetic motor, comprising: S1: the base plate, the central fixing seat and the auxiliary magnetic steel fixing seat assembly are assembled and fixed, the second replacement block is inserted into the second positioning hole; S2: the auxiliary magnetic steel is placed in the position corresponding to the second replacement block, the second replacement block is extracted after the auxiliary magnetic steel abuts against the second replacement block, the auxiliary magnetic steel is pressed into the auxiliary magnetic steel fixing seat assembly and the central fixing seat, and the auxiliary magnetic steel abuts against the base plate until the auxiliary magnetic steel abuts against the base plate; S3: after the multiple auxiliary magnetic steels in the lower section are installed by repeating step S2, epoxy resin adhesive is brushed on the upper end face of the auxiliary magnetic steel; S4: the limiting pin is inserted into the pin hole in the upper end of the auxiliary magnetic steel, the lower end of the magnetic shield ring is pressed in after the pin hole in the lower end of the magnetic shield ring is aligned with the limiting pin, and the lower end face of the magnetic shield ring abuts against the upper end face of the auxiliary magnetic steel; S5: the main magnetic steel fixing seat assembly is fixedly installed, the first replacement block is inserted into the first positioning hole, the main magnetic steel is placed in the position corresponding to the first replacement block, the first replacement block is extracted after the main magnetic steel abuts against the first replacement block, the main magnetic steel is pressed into the main magnetic steel fixing seat assembly and the central fixing seat, and the main magnetic steel abuts against the magnetic shield ring until the main magnetic steel abuts against the magnetic shield ring; S6: after the multiple main magnetic steels in the middle section are installed by repeating step S5, epoxy resin adhesive is brushed on the upper end face of the main magnetic steel; S7: step S4 is repeated until the lower end face of the magnetic shield ring abuts against the upper end face of the main magnetic steel. S8: Fix the sub-magnetic steel fixing seat assembly, insert the second replacement block into the second positioning hole, put the sub-magnetic steel into the corresponding position of the second replacement block, after the sub-magnetic steel abuts against the second replacement block, pull out the second replacement block, press the sub-magnetic steel between the sub-magnetic steel fixing seat assembly and the center fixing seat until the sub-magnetic steel abuts against the magnetic ring; S9: After the installation of the multiple sub-magnetic steels of the upper segment is completed, brush epoxy resin glue on the upper end surface of the sub-magnetic steel of the upper segment, put the installed three-segment magnetic steel into the oven for baking, wait for the epoxy resin glue to dry and fix, and then remove the bonding tool.

10. The method of claim 9, wherein the method further comprises: Step S9 further includes the following steps: S91: After brushing the epoxy resin glue on the upper end surface of the sub-magnetic steel of the upper segment, insert the limiting pin into the pin hole, align the pin hole on the magnetic steel end surface fixing ring with the limiting pin, press it in, and abut against the upper end surface of the sub-magnetic steel of the upper segment; S92: Invert the entire bonding tool, remove the bottom plate, the lower end surface of the sub-magnetic steel of the lower segment faces upward, after brushing the epoxy resin glue on the lower end surface of the sub-magnetic steel of the lower segment, repeat step S91, so that the magnetic steel end surface fixing ring abuts against the lower end surface of the sub-magnetic steel of the lower segment, after pressing the entire linear compressor three-segment magnetic steel upward and downward, put it into the oven for baking.

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