Lightweight water-cooled motor shell

Abstract

The utility model relates to the technical field of motor casings, and provides a lightweight water-cooled motor casing, which comprises an inner casing and an outer casing and further comprises an annular sealing strip, the inner casing is positioned inside the outer casing, matched positioning grooves are arranged at two ends of the inner casing and two ends of the outer casing, matched 7-shaped clamping grooves are arranged at two ends of the inner casing and two ends of the outer casing, and the annular sealing strip is positioned in the annular sealing strip. The annular sealing strip is tightly attached to the outer side wall of the inner shell and the inner side wall of the outer shell, the annular sealing strip is close to one end of the inner shell and one end of the outer shell, a positioning block matched with the positioning groove is fixedly connected to the annular sealing strip, and an elastic clamping piece matched with the 7-shaped clamping groove is fixedly connected to the annular sealing strip. The end, close to the inner side of the outer shell, of the annular sealing strip is fixedly connected with a connecting piece, one end of the connecting piece is fixedly connected with a sealing rubber ring, and the sealing rubber ring is tightly attached to the outer side wall of the inner shell and the inner side wall of the outer shell, so that the probability of liquid leakage is reduced when the welding position is damaged, and the purpose of improving equipment stability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor casings, and in particular to a lightweight water-cooled motor casing. Background Art

[0002] The existing water-cooled motor casing is welded with sealing plates at both ends between the inner casing and the outer casing by rotary friction welding, which is used to fix the inner casing and the outer casing and form a water-cooling cavity at the same time. However, the position of the sealing plate cannot be effectively positioned and limited during welding, and a clamp is required to fix the inner casing, the outer casing and the sealing plate at the same time, which is not conducive to the use of the staff and affects the welding effect and efficiency of the motor casing.

[0003] After searching, China disclosed a lightweight water-cooled motor casing with patent publication number CN213661312U on July 9, 2021, which is roughly described as including an outer shell, an inner shell and a set of side seal components, the side seal components including a plurality of arc seals, a positioning edge fixed at one end of the arc seal, a positioning groove opened at the other end of the arc seal, and the positioning edge and the positioning groove are gap-matched. The utility model is made into a side seal component by designing a plurality of new arc seals, and at the same time, the positioning between the plurality of arc seals is facilitated by the cooperation of the positioning edge and the positioning groove, and the arc seal is conveniently embedded in the position between the outer shell and the inner shell. At the same time, the interference fit between the arc seal, the outer shell and the inner shell can be achieved by the cooperation of the outer convex edge, the embedding groove and the guide groove, and the arc seal can be pre-installed at both ends of the water-cooling cavity, which is convenient for rotational friction welding of the arc seal, and at the same time, the sealing effect between the arc seal and the water-cooling cavity can be improved.

[0004] Although the above-mentioned prior art solution can effectively locate and limit the position of the sealing plate during welding, the device only seals the water cooling chamber by welding an arc seal. When the device is bumped and the welding part is damaged, leakage will occur. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies of the prior art, the utility model provides a lightweight water-cooled motor casing to solve the problem proposed in the background art that the water-cooling cavity is sealed only by arc-shaped sealing strip welding, which may cause leakage when the equipment is bumped and the welding joint is damaged.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lightweight water-cooled motor casing, comprising an inner casing and an outer casing, comprising an annular seal, the inner casing being located inside the outer casing, both ends of the inner casing and the outer casing are provided with matching positioning grooves, both ends of the inner casing and the outer casing are provided with matching 7-shaped card grooves, the annular seal is tightly attached to the outer side wall of the inner casing and the inner side wall of the outer casing, the annular seal is close to one end of the inner casing and the outer casing, a positioning block matching the positioning groove is fixedly connected to the annular seal, an elastic clip matching the 7-shaped card groove is fixedly connected to the annular seal, one end of the annular seal close to the inner side of the outer casing is fixedly connected to a connecting piece, one end of the connecting piece is fixedly connected to a sealing rubber ring, the sealing rubber ring is tightly attached to the outer side wall of the inner casing and the inner side wall of the outer casing.

[0009] By adopting the above technical scheme, a water-cooling cavity is formed between the inner shell and the outer shell, the annular seal is used to seal the water-cooling cavity, the positioning groove cooperates with the positioning block to position the annular seal to prevent the annular seal from rotating and moving into the water-cooling cavity, the 7-shaped groove cooperates with the elastic clip to limit the annular seal to prevent the annular seal from detaching from the water-cooling cavity, thereby facilitating the welding of the annular seal to the inner shell and the outer shell, the connecting piece cooperates with the sealing rubber ring to improve the sealing of the water-cooling cavity, and at the same time, when the welding point is damaged by bumps, leakage of the water-cooling cavity is prevented, thereby reducing the probability of leakage when the welding point is damaged, thereby achieving the purpose of improving the stability of the equipment.

[0010] Optionally, the inner side wall of the outer shell is fixedly connected with a first retaining ring matching with a sealing rubber ring, the outer side wall of the inner shell is fixedly connected with a second retaining ring matching with a sealing rubber ring, and one end of the sealing rubber ring is tightly attached to the first retaining ring and the second retaining ring.

[0011] By adopting the above technical solution, the first baffle ring and the second baffle ring cooperate with each other to enable the annular seal to push the sealing rubber ring to move, so that the sealing rubber ring is squeezed on the first baffle ring and the second baffle ring, thereby improving the sealing performance of the water cooling chamber.

[0012] Optionally, a plurality of evenly distributed reinforcing ribs are fixedly connected to the outer wall of the outer shell, and mounting holes are provided at both ends of the plurality of reinforcing ribs.

[0013] By adopting the above technical solution, the reinforcing ribs are used to improve the strength of the outer shell and reduce the probability of damage to the outer shell when it is bumped, so as to achieve the purpose of improving the stability of the equipment. The mounting holes are used to facilitate the installation of the equipment on the carrier, so as to facilitate the use of the equipment.

[0014] Optionally, the outer shell is provided with two matching through holes, and the two through holes are respectively fixedly connected with a water inlet and a water outlet.

[0015] By adopting the above technical solution, the water inlet and the drain port cooperate with each other to facilitate the circulation of the coolant inside and outside the water cooling chamber, so that the equipment can achieve the purpose of water cooling and heat dissipation.

[0016] (III) Beneficial effects

[0017] In summary, the present invention includes at least one of the following beneficial technical effects:

[0018] 1. The lightweight water-cooled motor casing has a water-cooling cavity formed between the inner casing and the outer casing, the annular seal is used to seal the water-cooling cavity, the positioning groove cooperates with the positioning block to position the annular seal to prevent the annular seal from rotating and moving into the water-cooling cavity, the 7-shaped card slot cooperates with the elastic card piece to limit the annular seal to prevent the annular seal from detaching from the water-cooling cavity, thereby facilitating the welding of the annular seal on the inner casing and the outer casing, the connecting piece cooperates with the sealing rubber ring to improve the sealing of the water-cooling cavity, and at the same time prevents the water-cooling cavity from leaking when the welding point is damaged by bumps, thereby reducing the probability of leakage when the welding point is damaged, thereby achieving the purpose of improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first side structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the first cross-sectional structure of the utility model;

[0021] Figure 3 For this utility model Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the second cross-sectional structure of the utility model;

[0023] Figure 5 For this utility model Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0024] In the figure: 1. inner shell; 2. outer shell; 3. annular seal; 4. positioning groove; 5. 7-shaped slot; 6. positioning block; 7. elastic clamp; 8. connecting piece; 9. sealing rubber ring; 10. first retaining ring; 11. second retaining ring; 12. reinforcing rib; 13. mounting hole; 14. water inlet; 15. drain outlet. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] Reference Figure 1-Figure 5 A lightweight water-cooled motor casing comprises an inner casing 1 and an outer casing 2, and comprises an annular seal 3. The inner casing 1 is located inside the outer casing 2. Both ends of the inner casing 1 and the outer casing 2 are provided with matching positioning grooves 4. Both ends of the inner casing 1 and the outer casing 2 are provided with matching 7-shaped card grooves 5. The annular seal 3 is tightly attached to the outer side wall of the inner casing 1 and the inner side wall of the outer casing 2. One end of the annular seal 3 is close to the inner casing 1 and the outer casing 2. A positioning block 6 matching the positioning groove 4 is fixedly connected to the annular seal 3. An elastic card 7 matching the 7-shaped card groove 5 is fixedly connected to the annular seal 3. A connector 8 is fixedly connected to one end of the annular seal 3 close to the inner side of the outer casing 2. A sealing rubber ring 9 is fixedly connected to one end of the connecting member 8. The sealing rubber ring 9 is tightly attached to the inner casing 1 and the inner side wall of the outer casing 2. The outer wall of the shell 1 and the inner wall of the outer shell 2 form a water-cooling chamber between the inner shell 1 and the outer shell 2. The annular seal 3 is used to seal the water-cooling chamber. The positioning groove 4 cooperates with the positioning block 6 to position the annular seal 3 to prevent the annular seal 3 from rotating and moving into the water-cooling chamber. The 7-shaped card groove 5 cooperates with the elastic card 7 to limit the annular seal 3 to prevent the annular seal 3 from detaching from the water-cooling chamber, so as to facilitate welding the annular seal 3 to the inner shell 1 and the outer shell 2. The connecting piece 8 cooperates with the sealing rubber ring 9 to improve the sealing of the water-cooling chamber. At the same time, when the welding point is damaged by bumps, leakage of the water-cooling chamber is avoided, so that the probability of leakage is reduced when the welding point is damaged, thereby achieving the purpose of improving the stability of the equipment.

[0028] Reference Figure 2 and Figure 3 The inner side wall of the outer shell 2 is fixedly connected with a first baffle ring 10 that matches the sealing rubber ring 9, and the outer side wall of the inner shell 1 is fixedly connected with a second baffle ring 11 that matches the sealing rubber ring 9. One end of the sealing rubber ring 9 is tightly attached to the first baffle ring 10 and the second baffle ring 11. The first baffle ring 10 and the second baffle ring 11 match each other to enable the annular seal 3 to push the sealing rubber ring 9 to move, so that the sealing rubber ring 9 is squeezed on the first baffle ring 10 and the second baffle ring 11, thereby improving the sealing performance of the water-cooling chamber.

[0029] Reference Figure 1A plurality of evenly distributed reinforcing ribs 12 are fixedly connected to the outer wall of the outer shell 2. The reinforcing ribs 12 are used to improve the strength of the outer shell 2 and reduce the probability of damage to the outer shell 2 when it is bumped, so as to achieve the purpose of improving the stability of the equipment. Both ends of the plurality of reinforcing ribs 12 are provided with mounting holes 13. The mounting holes 13 are used to facilitate the installation of the equipment on a carrier, so as to facilitate the use of the equipment.

[0030] Reference Figure 1 Two matching through holes are provided on the outer shell 2, and a water inlet 14 and a drain port 15 are fixedly connected to the two through holes respectively. The water inlet 14 and the drain port 15 match each other to facilitate the circulation of the coolant inside and outside the water cooling chamber, so that the equipment can achieve the purpose of water cooling and heat dissipation.

[0031] In summary, the working principle and working process of the lightweight water-cooled motor casing are as follows: when in use, a water-cooling cavity is first formed between the inner casing 1 and the outer casing 2, the annular seal 3 is used to seal the water-cooling cavity, the positioning groove 4 cooperates with the positioning block 6 to position the annular seal 3 to prevent the annular seal 3 from rotating and moving into the water-cooling cavity, the 7-shaped card groove 5 cooperates with the elastic card 7 to limit the annular seal 3 to prevent the annular seal 3 from detaching from the water-cooling cavity, so as to facilitate welding the annular seal 3 to the inner casing 1 and the outer casing 2, the connecting piece 8 cooperates with the sealing rubber ring 9 to improve the sealing of the water-cooling cavity, and at the same time prevents leakage of the water-cooling cavity when the welding point is damaged by bumps, so as to The probability of leakage is reduced when the welding joint is damaged, so as to achieve the purpose of improving the stability of the equipment. The first baffle ring 10 and the second baffle ring 11 cooperate with each other to enable the annular seal 3 to push the sealing rubber ring 9 to move, so that the sealing rubber ring 9 is squeezed on the first baffle ring 10 and the second baffle ring 11, so as to improve the sealing of the water-cooling chamber. The reinforcing rib 12 is used to increase the strength of the outer shell 2 and reduce the probability of damage to the outer shell 2 when it is bumped, so as to achieve the purpose of improving the stability of the equipment. The mounting hole 13 is used to facilitate the installation of the equipment on the carrier, so as to facilitate the use of the equipment. The water inlet 14 and the drain port 15 cooperate with each other to facilitate the circulation of the coolant inside and outside the water-cooling chamber, so that the equipment can achieve the purpose of water cooling and heat dissipation.

[0032] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A lightweight water-cooled motor housing, comprising an inner housing (1) and an outer housing (2), characterized in that: The invention comprises an annular seal (3), wherein the inner shell (1) is located inside the outer shell (2), the inner shell (1) and the outer shell (2) are provided with matching positioning grooves (4) at both ends, the inner shell (1) and the outer shell (2) are provided with matching 7-shaped card grooves (5) at both ends, the annular seal (3) is closely attached to the outer side wall of the inner shell (1) and the inner side wall of the outer shell (2), and one end of the annular seal (3) is close to the inner shell (1) and the outer shell (2). The annular seal (3) is fixedly connected with a positioning block (6) that matches the positioning groove (4), and the annular seal (3) is fixedly connected with an elastic clamp (7) that matches the 7-shaped clamping groove (5). The end of the annular seal (3) close to the inner side of the outer shell (2) is fixedly connected with a connecting piece (8), and one end of the connecting piece (8) is fixedly connected with a sealing rubber ring (9), and the sealing rubber ring (9) is closely attached to the outer side wall of the inner shell (1) and the inner side wall of the outer shell (2).

2. A lightweight water-cooled motor housing according to claim 1, characterized in that: The inner side wall of the outer shell (2) is fixedly connected to a first retaining ring (10) that matches the sealing rubber ring (9), and the outer side wall of the inner shell (1) is fixedly connected to a second retaining ring (11) that matches the sealing rubber ring (9), and one end of the sealing rubber ring (9) is tightly attached to the first retaining ring (10) and the second retaining ring (11).

3. The lightweight water-cooled motor housing according to claim 1, characterized in that: A plurality of evenly distributed reinforcing ribs (12) are fixedly connected to the outer wall of the outer shell (2).

4. A lightweight water-cooled motor housing according to claim 3, characterized in that: Both ends of the plurality of reinforcing ribs (12) are provided with mounting holes (13).

5. The lightweight water-cooled motor housing according to claim 1, characterized in that: The outer shell (2) is provided with two matching through holes, and the two through holes are respectively fixedly connected with a water inlet (14) and a water outlet (15).

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