A new energy automobile motor shell assembly

Abstract

The application relates to the technical field of new energy automobile motors, and discloses a new energy automobile motor shell assembly, an outer protective shell body is sleeved on the outer side of an inner side shell body, so that the cooling liquid circulates in the circulating flow channel; an open annular sealing piece is arranged in an open annular groove in the outer wall of the tail end of the inner side shell body, and inner and outer sealing capsules are arranged on the inner and outer sides of the open annular sealing piece; the sealing process is automatically realized through the cooperation of the bolt and the driving assembly; with the locking of the bolt, the air in the cylinder is automatically pressed into the sealing capsule, the sealing capsule is expanded to realize sealing, manual additional operation is not needed, the installation efficiency and the sealing reliability are improved; the combination sealing mode of the open annular sealing piece and the inner and outer sealing capsules is adopted, multiple sealing effects are realized, the sealing property between the inner side shell body and the outer protective shell body is greatly improved, the cooling liquid leakage and the impurities such as dust and moisture from the outside are prevented from entering the motor, and the normal operation of the motor is protected.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of new energy automobile motor shells, in particular to a new energy automobile motor shell assembly. BACKGROUND

[0002] During the operation of a new energy automobile motor, a large amount of heat is generated. If the heat cannot be dissipated in time and effectively, the temperature of the motor will continue to rise. A high-temperature environment will have a negative impact on the performance of the motor, such as reducing the efficiency of the motor, shortening the service life of the motor, and even possibly causing damage to the motor, affecting the normal operation of the new energy automobile. Therefore, the new energy automobile motor shell assembly adopts a combined installation mode, so that the cooling liquid can circulate inside the new energy automobile motor shell assembly to meet the heat dissipation needs of the motor.

[0003] A relatively sealed environment is needed between the combined installation new energy automobile motor shell assemblies to prevent the leakage of cooling liquid. Cooling liquid leakage not only affects the heat dissipation effect of the motor, but also can cause damage to other parts of the motor. At the same time, it is also necessary to prevent foreign matter such as dust and moisture from entering the inside of the motor, because these foreign matters can cause short circuits of electrical components, wear and tear of mechanical components, and other problems inside the motor, reducing the reliability and stability of the motor. The existing motor shell assemblies may not be perfect in sealing design, lacking effective sealing structures and sealing methods, and it is difficult to ensure good sealing between the components of the motor shell, so as to provide a reliable operating environment for the motor. Therefore, we introduce a new energy automobile motor shell assembly. SUMMARY

[0004] The purpose of the present application is to provide a new energy automobile motor shell assembly to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A new energy automobile motor shell assembly, comprising an inner shell, an outer protective shell is sleeved outside the inner shell, and a circulating flow channel is arranged on the outer wall of the inner shell, so that the cooling liquid circulates in the circulating flow channel;

[0007] An open annular groove is arranged on the outer wall of the end of the inner shell, and an open annular sealing element is arranged in the open annular groove, wherein the inner and outer sides of the open annular sealing element are respectively provided with an inner sealing capsule and an outer sealing capsule;

[0008] An installation cavity is arranged at the opening of the open annular groove, and a driving assembly is arranged in the installation cavity, so that after the bolt on the outer protective shell is locked with the driving assembly, the driving assembly pressurizes the air in the cylinder on the side wall of the installation cavity into the inner sealing capsule and the outer sealing capsule, and the inner sealing capsule and the outer sealing capsule are inflated to realize the sealing between the inner shell and the outer protective shell.

[0009] Preferably, the inside of the inner shell is provided with a limiting disc, the middle of the limiting disc is provided with a bearing for sleeving on the rotating shaft of the rotor, and the limiting disc is provided with a cooling liquid inlet communicated with a circulating flow channel, and the other end of the circulating flow channel is communicated with a cooling liquid outlet.

[0010] Preferably, the inside of the open ring-shaped sealing member is provided with a containing cavity for containing the inner sealing bag, and V-shaped frames are distributed at equal intervals on the side wall of the containing cavity, and the upper and lower ends of the V-shaped frames are connected to the top wall and the bottom wall of the containing cavity, respectively.

[0011] Preferably, the outside of the open ring-shaped sealing member is provided with two groups of containing grooves for containing the outer sealing bag.

[0012] Preferably, the driving assembly comprises a driving arm movably connected to the mounting cavity by a connecting shaft, an arc-shaped outer toothed plate connected to one end of the driving arm, a tension plate connected to the other end of the driving arm, and gears symmetrically distributed and meshing with the arc-shaped outer toothed plate.

[0013] The cylinder body is internally slidably connected with a piston, and the inside end of the cylinder body is fixed with an end cover, and a screw rod fixed in the middle of the piston penetrates through the end cover and is fixed in the middle of the corresponding gear.

[0014] The screw rod is screwed with the middle of the end cover through the threads thereon.

[0015] Preferably, the middle of the tension plate is provided with a slot, the side edges of the tension plate are connected with locking nuts by metal connecting arms, and the bolt penetrates through the slot and is locked and fixed with the locking nuts.

[0016] Preferably, the outside of the piston is sleeved with a rubber sealing ring.

[0017] Preferably, the ends of the inner sealing bag and the outer sealing bag are communicated with the corresponding cylinder bodies.

[0018] Compared with the prior art, the beneficial effects of the present application are as follows: the sealing process is automatically realized by the cooperation of the bolt and the driving assembly, and with the locking of the bolt, the air in the cylinder body is automatically pressed into the sealing bag, so that the sealing bag is inflated to realize sealing, without the need for manual additional operation, thereby improving the installation efficiency and the reliability of sealing; the combination sealing mode of the open ring-shaped sealing member and the inner sealing bag and the outer sealing bag is adopted, the sealing of the inner sealing bag on the side wall of the open ring-shaped groove, the sealing of the outer sealing bag on the inner wall of the outer protective shell, and the sealing of the V-shaped frames on the upper and lower ends of the inside of the open ring-shaped sealing member are realized, thereby realizing multiple sealing effects, greatly improving the sealing between the inner shell and the outer protective shell, preventing the leakage of cooling liquid and the entry of impurities such as dust and moisture from the outside into the motor, and protecting the normal operation of the motor. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application.

[0020] Figure 2 This is a first three-dimensional structural diagram of the inner shell of the present invention;

[0021] Figure 3 This is a schematic diagram of the second three-dimensional structure of the inner shell of the present invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the open annular seal of the present invention;

[0024] Figure 6 This is a cross-sectional view of the open annular seal of the present invention;

[0025] Figure 7 This is a structural schematic diagram showing the relative positions of the inner and outer sealing bladders of the present invention;

[0026] Figure 8 This is a three-dimensional structural diagram of the assembly of the open annular seal and the inner shell of the present invention;

[0027] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B;

[0028] Figure 10 This is a three-dimensional structural diagram of the assembly of the inner sealing bladder, outer sealing bladder, and open annular sealing element of the present invention;

[0029] Figure 11 This is a structural schematic diagram showing the relative positions of the gear and the arc-shaped external gear plate in the initial state of the present invention;

[0030] Figure 12 This is a structural schematic diagram showing the relative positions of the gear and the arc-shaped external gear plate in the bolt-locked state of the present invention;

[0031] Figure 13 This is a cross-sectional view of the overall structure of the present invention;

[0032] Figure 14 For the present invention Figure 13 Enlarged structural diagram at point C;

[0033] Figure 15 For the present invention Figure 13 Enlarged structural diagram at point D.

[0034] In the figure: 1, inner shell; 101, cooling liquid inlet; 102, bearing; 103, circulating flow channel; 104, cooling liquid outlet; 105, sealing washer; 106, open annular groove; 107, mounting cavity; 108, cylinder; 109, end cover; 110, connecting shaft; 2, outer protective shell; 3, open annular sealing element; 301, containing cavity; 302, V-shaped frame; 303, containing clamping groove; 4, inner sealing capsule; 5, outer sealing capsule; 6, gear; 7, screw rod; 8, arc-shaped outer tooth plate; 9, tensioning plate; 91, slot; 92, metal connecting arm; 93, locking nut; 10, driving arm; 11, piston; 12, rubber sealing ring; 13, bolt. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] Please refer to Figures 1-15 The present application provides a technical solution:

[0037] A new energy automobile motor shell assembly, comprising an inner shell 1, a circulating flow channel 103 is arranged on the outer wall of the inner shell 1, and an outer protective shell 2 is sleeved outside the inner shell 1, so that the cooling liquid circulates in the circulating flow channel 103.

[0038] The inner shell 1 is internally provided with a limiting disc, the motor rotor is arranged inside the inner shell 1, the middle part of the limiting disc is provided with a bearing 102 for sleeving on the rotor shaft, the limiting disc is provided with a cooling liquid inlet 101 in communication with the circulating flow channel 103, and the other end of the circulating flow channel 103 is communicated with a cooling liquid outlet 104.

[0039] The cooling liquid enters the circulating flow channel 103 through the cooling liquid inlet 101 and finally flows out through the cooling liquid outlet 104, so that the cooling liquid circulates inside the circulating flow channel 103, thereby realizing rapid heat dissipation of the inner shell 1 and the outer protective shell 2.

[0040] The circulating flow channel 103 is arranged on the outer wall of the inner shell 1, which enables the cooling liquid to fully contact the inner shell 1 and the outer protective shell 2, improves the heat dissipation efficiency, and does not affect the overall structural strength of the motor shell.

[0041] An open annular groove 106 is arranged on the end outer wall of the inner shell 1, and an open annular sealing member 3 is arranged in the open annular groove 106. The inner and outer sides of the open annular sealing member 3 are respectively provided with an inner sealing bag 4 and an outer sealing bag 5. The ends of the inner sealing bag 4 and the outer sealing bag 5 are communicated with corresponding cylinder bodies 108.

[0042] The inner side of the open annular sealing member 3 is provided with a containing cavity 301 for containing the inner sealing bag 4. When the bolt 13 is locked with the tension plate 9, the tension plate 9 drives the arc-shaped outer tooth plate 8 to rotate through the driving arm 10, the arc-shaped outer tooth plate 8 drives the screw rod 7 to rotate through the gear 6, the screw rod 7 pushes the piston 11 to further enter into the cylinder body 108, and a part of air in the cylinder body 108 is pressed into the inner sealing bag 4, so that the inner sealing bag 4 is tightly attached to the side wall of the open annular groove 106 after expansion, the containing cavity 301 is blocked by the inner sealing bag 4, the sealing effect of the inner wall of the open annular sealing member 3 and the open annular groove 106 is further improved, and the sealing performance of the open annular sealing member 3 on the connection between the inner shell 1 and the outer protective shell 2 is increased.

[0043] The outer side of the open annular sealing member 3 is provided with two groups of containing grooves 303 for containing the outer sealing bag 5, so that the outer sealing bag 5 is provided with two groups of upper and lower groups. After the outer sealing bag 5 expands, the outer wall of the open annular sealing member 3 is sealed with the inner wall of the outer protective shell 2, the sealing performance of the open annular sealing member 3 on the connection between the inner shell 1 and the outer protective shell 2 is increased.

[0044] The side wall of the containing cavity 301 is provided with V-shaped frames 302 at equal intervals, and the upper and lower ends of the V-shaped frames 302 are connected to the top wall and the bottom wall of the containing cavity 301, respectively. After the outer sealing bag 5 enters air and expands, the expansion of the outer sealing bag 5 will press the open annular sealing member 3 inward, so that the V-shaped frames 302 in the containing cavity 301 are in an open state, the upper and lower ends of the inner side of the containing cavity 301 are gradually opened, and then the upper and lower ends of the inner side of the open annular sealing member 3 are tightly attached to the top wall and the bottom wall of the open annular groove 106 after being pressed, the sealing effect of the inner wall of the open annular sealing member 3 and the open annular groove 106 is further improved, and the sealing performance of the open annular sealing member 3 on the connection between the inner shell 1 and the outer protective shell 2 is increased.

[0045] An installation cavity 107 is arranged at the opening of the open annular groove 106, and a driving assembly is arranged in the installation cavity 107.

[0046] The driving assembly comprises a driving arm 10 movably connected to the installation cavity 107 through a connecting shaft 110, an arc-shaped outer tooth plate 8 connected to one end of the driving arm 10, a tension plate 9 connected to the other end of the driving arm 10, and gears 6 symmetrically distributed and engaged with the arc-shaped outer tooth plate 8.

[0047] The cylinder 108 is internally sleeved with a piston 11, and the inner side of the cylinder 108 is fixed with an end cover 109. The middle part of the piston 11 is fixed with a screw rod 7 which penetrates through the end cover 109 and is fixed in the middle part of the corresponding gear 6.

[0048] The screw rod 7 is screwed with the middle part of the end cover 109 through the thread on the screw rod 7. When the gear 6 drives the screw rod 7 to rotate, the screw rod 7 moves relative to the end cover 109, so that the screw rod 7 drives the piston 11 to further enter the cylinder 108.

[0049] When the bolt 13 is locked, the bolt 13 tightens the tension plate 9, so that the tension plate 9, the driving arm 10 and the arc-shaped outer tooth plate 8 rotate counterclockwise as a whole with the connecting shaft 110 as the center, so that the arc-shaped outer tooth plate 8 drives the screw rod 7 to rotate through the gear 6, so that the screw rod 7 pushes the piston 11 to further enter the cylinder 108, so that the piston 11 pushes the air in the cylinder 108 into the inner sealing bag 4 and the outer sealing bag 5.

[0050] The middle part of the tension plate 9 is provided with a slot 91, and the side edge of the tension plate 9 is connected with a locking nut 93 through a metal connecting arm 92. The bolt 13 penetrates through the slot 91 and is locked and fixed with the locking nut 93.

[0051] When the bolt 13 and the locking nut 93 are gradually locked and fixed, and the tension plate 9, the driving arm 10 and the arc-shaped outer tooth plate 8 rotate counterclockwise as a whole with the connecting shaft 110 as the center, the slot 91 is arranged, so that after the tension plate 9 rotates, the bolt 13 does not hinder the counterclockwise rotation of the tension plate 9.

[0052] And when the bolt 13 is gradually locked, the metal connecting arm 92 will deform until the locking nut 93 tightly abuts against the inner wall of the tension plate 9, and under the tightening action of the bolt 13, the tension plate 9, the driving arm 10 and the arc-shaped outer tooth plate 8 rotate counterclockwise as a whole with the connecting shaft 110 as the center.

[0053] The outer side of the piston 11 is sleeved with a rubber sealing ring 12. After the piston 11 further enters the cylinder 108, the rubber sealing ring 12 can realize the sealing between the piston 11 and the inner wall of the cylinder 108, so as to press the air in the cylinder 108 into the inner sealing bag 4 and the outer sealing bag 5.

[0054] After the bolt 13 on the outer protective shell 2 is locked with the driving assembly, the driving assembly presses the air in the cylinder 108 on the side wall of the mounting cavity 107 into the inner sealing bag 4 and the outer sealing bag 5. After the inner sealing bag 4 and the outer sealing bag 5 are inflated, the sealing between the inner side shell 1 and the outer protective shell 2 is realized.

[0055] The open annular groove 106 of the present application can be arranged on the two end outer walls of the inner shell 1, or arranged on the outer wall of one end of the inner shell 1, and the outer side of the other end of the inner shell 1 is sleeved with a sealing gasket 105, which is sealed between the inner shell 1 and the outer protective shell 2.

[0056] Specifically, in use, the heat dissipation of the new energy automobile motor shell assembly is mainly realized by the circulation of the cooling liquid in the circulation flow channel. The outer wall of the inner shell 1 is provided with a circulation flow channel 103, and the limiting disc inside the inner shell 1 is provided with a cooling liquid inlet 101. The other end of the circulation flow channel 103 is communicated with a cooling liquid outlet 104. When the motor works and generates heat, the cooling liquid enters the circulation flow channel 103 through the cooling liquid inlet 101, absorbs the heat of the inner shell 1 and the outer protective shell 2 in the process of flowing in the channel, and then flows out through the cooling liquid outlet 104. Such circulation can timely take away the heat generated by the motor, effectively reduce the temperature of the motor shell, ensure the motor to work in a suitable temperature environment, prolong the service life of the motor, and improve the working efficiency and stability of the motor.

[0057] When the bolts 13 on the outer protective shell 2 are gradually locked and fixed with the locking nuts 93 on the tensioning plate 9, the bolts 13 tension the tensioning plate 9, so that the tensioning plate 9, the driving arm 10 and the arc-shaped outer toothed plate 8 rotate counterclockwise as a whole with the connecting shaft 110 as the center. The slot 91 in the middle of the tensioning plate 9 ensures that the bolts 13 do not hinder the rotation during the rotation, and at the same time, the metal connecting arm 92 will deform until the locking nut 93 tightly abuts against the inner wall of the tensioning plate 9, and the rotation action of the driving assembly is completed.

[0058] When the arc-shaped outer toothed plate 8 rotates counterclockwise, it drives the gear 6 to rotate by meshing with the symmetrically distributed gears 6. Since the screw rod 7 is fixed in the middle of the gear 6 and the screw rod 7 is screwed with the middle of the end cover 109 through the threads thereon, the gear 6 rotates to drive the screw rod 7 to rotate, so that the screw rod 7 moves relative to the end cover 109, and further pushes the piston 11 to enter the cylinder body 108.

[0059] After the piston 11 enters the cylinder body 108, part of the air in the cylinder body 108 is pressed into the inner sealing capsule 4 and the outer sealing capsule 5. The inner sealing capsule 4 is located in the containing cavity 301 inside the open annular sealing member 3, and after the air enters, it expands and tightly abuts against the side wall of the open annular groove 106, thereby plugging the containing cavity 301, and improving the sealing effect of the inner wall of the open annular sealing member 3 and the open annular groove 106. The outer sealing capsule 5 is provided with two groups of upper and lower groups, which are located in the containing groove 303 outside the open annular sealing member 3, and after expansion, the outer wall of the open annular sealing member 3 is sealed with the inner wall of the outer protective shell 2.

[0060] When the outer sealing bag 5 is inflated, it will press the open annular sealing member 3 inward, so that the V-shaped frame 302 in the accommodating cavity 301 is in an open state, the upper and lower ends of the inner side of the accommodating cavity 301 are gradually opened, and then the upper and lower ends of the inner side of the open annular sealing member 3 are pressed and tightly attached to the top wall and the bottom wall of the open annular groove 106 respectively, thereby further improving the sealing effect.

[0061] Multiple sealing: the combination sealing mode of the open annular sealing member 3 and the inner sealing bag 4 and the outer sealing bag 5 is adopted, the sealing of the side wall of the open annular groove 106 by the inner sealing bag 4, the sealing of the inner wall of the outer protective shell 2 by the outer sealing bag 5 and the sealing of the upper and lower ends of the inner side of the open annular sealing member 3 by the V-shaped frame 302 are adopted, multiple sealing effects are realized, the sealing between the inner shell 1 and the outer protective shell 2 is greatly improved, the leakage of cooling liquid and the entry of impurities such as dust and moisture from the outside into the motor are prevented, and the normal operation of the motor is protected.

[0062] Automatic adjustment: the sealing process is automatically realized through the cooperation of the bolt 13 and the driving assembly, with the locking of the bolt 13, the air in the cylinder body 108 is automatically pressed into the sealing bag, the sealing bag is inflated to realize sealing, no additional manual operation is needed, the installation efficiency and the reliability of the sealing are improved.

[0063] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle motor shell assembly, comprising an inner side shell, characterized in that: The outer wall of the inner shell is provided with a circulating flow channel, and an outer protective shell is sleeved outside the inner shell, so that the cooling liquid circulates in the circulating flow channel; An open annular sealing member is arranged in the open annular groove of the outer wall of the end of the inner shell, and the inner and outer sides of the open annular sealing member are respectively provided with an inner sealing bag and an outer sealing bag; An installation cavity is arranged at the opening of the open annular groove, and a driving assembly is arranged in the installation cavity; after the bolt on the outer protective shell is locked with the driving assembly, the driving assembly pressurizes the air in the cylinder on the side wall of the installation cavity into the inner sealing bag and the outer sealing bag, so that the inner sealing bag and the outer sealing bag are inflated to realize the sealing between the inner shell and the outer protective shell; The driving assembly comprises a driving arm movably connected to the installation cavity by a connecting shaft, an arc-shaped outer gear plate connected to one end of the driving arm, a tension plate connected to the other end of the driving arm, and a gear symmetrically distributed and meshing with the arc-shaped outer gear plate; A piston is slidably connected in the cylinder, an end cover is fixed to the inner side end of the cylinder, and a screw rod fixed in the middle of the piston penetrates through the end cover and is fixed to the middle of the corresponding gear; The screw rod is screwed with the middle part of the end cover through the threads thereon; The middle part of the tension plate is provided with a slot, and the side edges of the tension plate are connected with locking nuts by metal connecting arms, and the bolt penetrates through the slot and is locked and fixed with the locking nut.

2. The new energy vehicle motor shell assembly according to claim 1, characterized in that: The inner side of the inner shell is provided with a limiting disc, the middle part of the limiting disc is provided with a bearing for sleeving on the rotor shaft, the limiting disc is provided with a cooling liquid inlet communicated with the circulating flow channel, and the other end of the circulating flow channel is communicated with a cooling liquid outlet.

3. The new energy vehicle motor shell assembly of claim 1, wherein: The inner side of the open annular sealing member is provided with a containing cavity for containing the inner sealing bag, and V-shaped frames are distributed at equal intervals on the side wall of the containing cavity.

4. The new energy vehicle motor shell assembly of claim 1, wherein: The outer side of the open annular sealing member is provided with two groups of containing grooves for containing the outer sealing bag.

5. The new energy vehicle motor shell assembly according to claim 1, characterized in that: The outer side of the piston is sleeved with a rubber sealing ring.

6. The new energy vehicle motor shell assembly according to claim 1, characterized in that: The ends of the inner sealing bag and the outer sealing bag are communicated with the corresponding cylinders.

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