Combined water-cooling sealing structure

Abstract

The invention discloses a combined type water-cooling sealing structure, and relates to the technical field of water-cooling sealing structures, the combined type water-cooling sealing structure comprises an inner shell and an outer shell, a cooling cavity is formed between the inner shell and the outer shell, the cooling cavity is filled with cooling liquid, the water inlet pipe and the water outlet pipe are both installed on the outer shell, and the water inlet pipe and the water outlet pipe are connected with the inner shell. The sealing mechanism comprises at least two sealing rubber rings, the two sealing rubber rings are located between the inner shell body and the outer shell body and located on the two sides of the cooling cavity, a glue storage groove is formed in the same side of the inner shell body and the outer shell body, the glue storage groove is filled with sealing glue, and a double-layer sealing structure is adopted. More effective sealing of the cooling liquid is ensured, leakage of the cooling liquid is avoided, and the cooling efficiency of the generator is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water-cooled sealing structures, and more specifically, to a combined water-cooled sealing structure. Background Art

[0002] Currently, the main cooling method in the general-purpose engine industry is air cooling, which uses a cooling fan to forcibly dissipate heat from the heating components. However, the cooling fan has problems such as a bulky structure, high power consumption, poor cooling effect, high noise, and inability to dissipate heat after shutdown.

[0003] Therefore, liquid cooling has gradually become an alternative to air cooling. However, current liquid cooling mostly uses cooling heat exchange tubes wound around the outer side of the motor housing. This method has low heat exchange efficiency, resulting in an unobvious heat dissipation effect. If a water exchange channel is directly set on the motor housing, there will be a problem of poor sealing effect, resulting in leakage of the coolant.

[0004] In summary, how to provide a water-cooled sealing structure with good sealing effect is an urgent problem to be solved by those skilled in the art currently. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a combined water-cooled sealing structure, which adopts multiple seals to improve the sealing effect.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A combined water-cooled sealing structure, comprising:

[0008] An inner housing and an outer housing, a cooling cavity is formed between the inner housing and the outer housing, and the cooling cavity is filled with a coolant;

[0009] A water inlet pipe and a water outlet pipe, both the water inlet pipe and the water outlet pipe are installed on the outer housing and are communicated with the cooling cavity;

[0010] At least two sealing rubber rings, at least two sealing rubber rings are located between the inner housing and the outer housing and on both sides of the cooling cavity;

[0011] On the same side of the inner housing and the outer housing, a glue storage groove is formed, and the glue storage groove is filled with a sealing glue.

[0012] Further, two annular grooves are provided on the inner housing, and the two sealing rubber rings are respectively located in the two grooves.

[0013] Further, the volume of the groove is smaller than the volume of the sealing rubber ring.

[0014] Further, in the present invention, the inner housing includes a first pressing portion and a second pressing portion. The diameter of the first pressing portion is greater than that of the second pressing portion. The outer housing includes a first supporting portion and a second supporting portion. The diameter of the first supporting portion is greater than that of the second supporting portion. The first pressing portion contacts the first supporting portion and forms an L-shaped fitting gap with an opening facing the outer housing.

[0015] Further, in the present invention, the second pressing portion cooperates with the second supporting portion and forms an L-shaped fitting gap with an opening facing the inner housing. The glue storage groove is located between the second pressing portion and the second supporting portion.

[0016] Further, in the present invention, the sealant is a silicone sealant.

[0017] Further, in the present invention, a circular protrusion is provided on the second pressing portion. The protrusion is used to prevent the sealant from entering the interior of the inner housing.

[0018] Further, in the present invention, a partition plate is provided on the inner housing. The partition plate divides the cooling chamber into two parts. The water inlet pipe and the water outlet pipe are respectively located on both sides of the partition plate.

[0019] Further, in the present invention, both the water inlet pipe and the water outlet pipe are arranged closely against the partition plate.

[0020] For the combined water-cooled sealing structure provided by the present invention, during use, the inner housing and the outer housing are fitted together. After fitting, a cooling chamber is formed between the inner housing and the outer housing. The cooling chamber is filled with a coolant. A water inlet pipe and a water outlet pipe are installed on the outer housing and are communicated with the cooling chamber. That is to say, during use, the coolant enters the cooling chamber through the water inlet pipe, absorbs heat, and then is discharged from the cooling chamber through the water outlet pipe, forming a circulation loop to achieve the purpose of sustainable cooling. The sealing mechanism includes at least two sealing rubber rings. The two sealing rubber rings are located between the inner housing and the outer housing and on both sides of the cooling chamber. A glue storage groove is formed on the same side of the inner housing and the outer housing. The glue storage groove is filled with a sealant. That is to say, sealing rubber rings are provided on both sides of the cooling chamber to seal the coolant and prevent it from leaking. By providing a glue storage groove on one side of the cooling chamber and filling it with a sealant to further seal the coolant, it is ensured that the coolant is effectively sealed. Only a glue storage groove is provided on one side of the cooling chamber, and the other side adopts a normal fitting method, retaining a fitting gap to ensure connection to the external atmosphere. Therefore, even if there is a leak, the coolant will directly leak to the external environment, thereby ensuring the safety inside the generator and effectively increasing the service life of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the provided drawings.

[0022] Figure 1 Structural schematic diagram of the overall disassembly provided by the present invention;

[0023] Figure 2 Structural schematic diagram of the overall structure after installation provided by the present invention;

[0024] Figure 3 Structural schematic diagram of the cross-section after the overall installation provided by the present invention;

[0025] Figure 4 Provided by the present invention Figure 3 Enlarged structural schematic diagram of part A in;

[0026] Figures 1 - 4 Among them, the reference numerals include:

[0027] 1, inner housing; 101, first pressing part; 102, second pressing part; 103, protrusion; 2, outer housing; 201, first supporting part; 202, second supporting part; 3, cooling cavity; 4, water inlet pipe; 5, water outlet pipe; 6, sealing rubber ring; 7, glue storage groove. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] The core of the present invention is to provide a combined water-cooled sealing structure, which adopts multiple seals to improve the sealing effect.

[0030] Please refer to Figures 1 - 4 , a combined water-cooled sealing structure, including an inner housing 1, an outer housing 2, a water inlet pipe 4, a water outlet pipe 5, at least two sealing rubber rings 6 and sealing glue. A cooling cavity 3 is formed between the inner housing 1 and the outer housing 2. The cooling cavity 3 is filled with a coolant. The water inlet pipe 4 and the water outlet pipe 5 are both installed on the outer housing 1 and communicate with the cooling cavity 3. At least two sealing rubber rings 6 are located between the inner housing 1 and the outer housing 2 and on both sides of the cooling cavity 3. A glue storage groove 7 is formed on the same side of the inner housing 1 and the outer housing 2, and the glue storage groove 7 is filled with sealing glue.

[0031] It should be noted that in the embodiment of the present invention, the diameter of the sealing rubber ring 6 is smaller than the diameter of the inner housing 1.

[0032] In addition, in the embodiment of the present invention, both the inner housing 1 and the outer housing 2 are made by means of integral casting.

[0033] Optionally, in some embodiments, the coolant can use water as the medium, or use cooling oil as the medium. When in use, the inner housing 1 and the outer housing 2 are fitted together. After fitting, a cooling cavity 3 is formed between the inner housing 1 and the outer housing 2. The cooling cavity 3 is filled with coolant. An inlet pipe 4 and an outlet pipe 5 are installed on the inner housing 1 and are communicated with the cooling cavity 3. That is to say, during the use process, the coolant enters the cooling cavity 3 through the inlet pipe 4, absorbs heat, and then is discharged from the cooling cavity 3 through the outlet pipe 5, forming a circulation loop to achieve the purpose of sustainable cooling. The sealing mechanism includes at least two sealing rubber rings 6. The two sealing rubber rings 6 are located between the inner housing 1 and the outer housing 2 and on both sides of the cooling cavity 3. On the same side of the inner housing 1 and the outer housing 2, a glue storage groove 7 is formed. The glue storage groove 7 is filled with sealant. That is to say, sealing rubber rings 6 are arranged on both sides of the cooling cavity 3 to seal the coolant to prevent it from leaking. By arranging a glue storage groove 7 on one side of the cooling cavity 3 and filling it with sealant to further seal the coolant, it is ensured that the coolant is effectively sealed. Only a glue storage groove 7 is arranged on one side of the cooling cavity 3, and the other side adopts a normal fitting method, retaining the fitting gap to ensure connection to the external atmosphere. Therefore, even if there is leakage, the coolant will directly leak to the external environment, thus ensuring the safety inside the generator and effectively increasing the service life of the generator.

[0034] Please refer to Figures 1 - 4 , in order to effectively fix the sealing rubber ring 6, in some embodiments, two annular grooves 8 are provided on the inner housing 1. The two sealing rubber rings 6 are respectively located in the two annular grooves 8. That is to say, the grooves 8 provided on the inner housing 1 can make the sealing rubber ring 6 located inside, thereby fixing the sealing rubber ring 6 and ensuring that the sealing rubber ring is located in the same horizontal plane to improve its sealing effect.

[0035] Optionally, in some embodiments, the groove 8 has a semi-circular cross-sectional structure, and the semi-circle of the groove 8 is larger than half of the circle.

[0036] In some other embodiments, a pointed protrusion 103 is provided inside the groove 8. When the sealing rubber ring 6 is placed inside the groove 8, the pointed protrusion 103 increases the friction force on the rubber sealing ring, improving its firmness. At the same time, since the pointed protrusion 103 can increase the contact friction force between the rubber sealing ring and the outer housing 2, it is beneficial to improve the sealing effect of the sealing rubber ring 6.

[0037] Optionally, in some embodiments, the groove 8 is filled with sealant, and then the sealing rubber ring 6 is placed inside the groove 8. By filling the sealant, the sealing performance can be further enhanced.

[0038] Optionally, in some embodiments, the volume of the groove 8 is smaller than the volume of the sealing rubber ring 6. By further compressing and squeezing the rubber sealing ring, the contact area and contact force between it and the inner housing 1 and the outer housing 2 are increased, thereby enhancing the sealing effect.

[0039] Please refer to Figures 1 - 4 , in some embodiments, the inner housing 1 includes a first pressing portion 101 and a second pressing portion 102. The diameter of the first pressing portion 101 is larger than that of the second pressing portion 102. The outer housing 2 includes a first supporting portion 201 and a second supporting portion 202. The diameter of the first supporting portion 201 is larger than that of the second supporting portion 202. The first pressing portion 101 contacts the first supporting portion 201 and forms an L-shaped fitting gap with an opening facing the outer housing 2. Specifically, by designing both the inner housing 1 and the outer housing 2 as L-shaped structures and arranging them in a way that the openings face each other, the inner housing 1 and the outer housing 2 form an effective fit. The first pressing portion 101 is in close contact with the first supporting portion 201, and the second pressing portion 102 cooperates with the second supporting portion 202. At the same time, two sealing rubber rings 6 are respectively located between the first pressing portion 101 and the first supporting portion 201, and between the second pressing portion 102 and the second supporting portion 202, to effectively seal the cooling cavity 3.

[0040] Optionally, in some embodiments, the second pressing portion 102 cooperates with the second supporting portion 202 and forms an L-shaped fitting gap with an opening facing the inner housing 1. The glue storage groove 7 is located between the second pressing portion 102 and the second supporting portion 202. That is to say, the fitting gap between the second pressing portion 102 and the second supporting portion 202 is used as the glue storage groove 7, and sealant is filled in the fitting gap to achieve a more effective sealing effect, avoiding the need to separately provide the glue storage groove 7 and reducing the processing difficulty.

[0041] In this embodiment, under the dual sealing conditions of the sealant and the sealing rubber ring 6, the glue storage groove 7 can ensure that the coolant does not flow out from here. At the same time, the first pressing portion 101 contacts the first supporting portion 201 and maintains a normal fitting gap. Therefore, when the cooling cavity 3 is impacted or the internal pressure of the cooling cavity 3 increases, the coolant will flow out from the fitting gap between the first pressing portion 101 and the first supporting portion 201. And the fitting gap between the first pressing portion 101 and the first supporting portion 201 is an L-shaped fitting gap with an opening facing the outer housing 2. Therefore, the coolant will flow out towards the outside of the generator and will not affect the inside of the generator.

[0042] Optionally, in order to improve the firmness after the sealant is filled, in some embodiments, a number of dipping teeth are provided inside the glue storage tank 7. The dipping teeth are arranged on the second support portion 202. Through the dipping teeth, after the sealant is filled and air-dried, the firmness of the sealant can be effectively improved, and the loosening of the sealant during the use of the generator can be avoided.

[0043] In this embodiment, the dipping teeth are of a toothed structure and are formed by milling a plurality of grooves 8 with different diameters on the second support portion 202 by a lathe, or by welding a plurality of annular protrusions 103 with different diameters on the second support portion 202.

[0044] Optionally, in some embodiments, the sealant is an organosilicon sealant. The organosilicon sealant has high and low temperature resistance, aging resistance, oil resistance and mechanical properties, and can adapt to the use environment of the generator.

[0045] Optionally, in order to prevent the sealant from entering the generator during the filling of the sealant, in some embodiments, an annular protrusion 103 is provided on the second pressing portion 102. The protrusion 103 is used to prevent the sealant from entering the inner housing 1. At the same time, it can increase the filling amount of the sealant, thereby improving the sealing effect.

[0046] Please refer to Figures 1 - 4 , in some embodiments, a partition plate 104 is provided on the inner housing 1. The partition plate 104 divides the cooling chamber 3 into two parts. The water inlet pipe 4 and the water outlet pipe 5 are respectively located on both sides of the partition plate 104. That is to say, the water inlet pipe 4 and the water outlet pipe 5 are separated by the partition plate 104. Therefore, the coolant will flow fully in the cooling chamber 3.

[0047] Optionally, in some embodiments, both the water inlet pipe 4 and the water outlet pipe 5 are arranged closely against the partition plate 104. That is to say, both the water inlet pipe 4 and the water outlet pipe 5 are located on the same side of the cooling chamber 3 and are separated by the partition plate 104. Therefore, the coolant in the cooling chamber 3 will circulate around the inner housing 1 for one week and be discharged from the water outlet pipe 5, which can more fully improve the fluidity of the coolant and effectively improve the heat absorption efficiency of the generator.

[0048] That is to say, the key point of the embodiment of the present invention is that the coolant enters the cooling cavity 3 through the water inlet pipe 4, absorbs heat, and then is discharged from the cooling cavity 3 through the water outlet pipe 5 to form a circulation loop to achieve the purpose of sustainable cooling. The sealing mechanism includes at least two sealing rubber rings 6. The two sealing rubber rings 6 are located between the inner housing 1 and the outer housing 2 and on both sides of the cooling cavity 3. A glue storage groove 7 is formed on the same side of the inner housing 1 and the outer housing 2. The glue storage groove 7 is filled with sealing glue. That is to say, sealing rubber rings 6 are arranged on both sides of the cooling cavity 3 to seal the coolant to prevent it from leaking. By arranging a glue storage groove 7 on one side of the cooling cavity 3 and filling it with sealing glue to further seal the coolant, it is ensured that the coolant is effectively sealed. Only a glue storage groove 7 is arranged on one side of the cooling cavity 3, and the other side adopts a normal fitting method, retaining a fitting gap to ensure connection to the external atmosphere. Therefore, even if there is leakage, the coolant will directly leak to the external environment, thereby ensuring the safety inside the generator and effectively increasing the service life of the generator.

[0049] Among them, Figure 1 the arrangement of the water inlet pipe 4 and the water outlet pipe 5 is to show the relative position with respect to the partition plate 104.

[0050] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same and similar parts among the embodiments, reference can be made to each other.

[0051] The above has introduced in detail a combined water-cooled sealing structure provided by the present invention. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A combined water-cooled sealing structure, characterized in that: include: An inner shell (1) and an outer shell (2), wherein a cooling cavity (3) is formed between the inner shell (1) and the outer shell (2), and the cooling cavity (3) is filled with a cooling liquid; a water inlet pipe (4) and a water outlet pipe (5), wherein the water inlet pipe (4) and the water outlet pipe (5) are both installed on the outer shell (1) and are in communication with the cooling chamber (3); at least two sealing rubber rings (6), wherein the at least two sealing rubber rings (6) are located between the inner shell (1) and the outer shell (2), and are located on both sides of the cooling cavity (3); A glue storage groove (7) is formed on the same side of the inner shell (1) and the outer shell (2), and the glue storage groove (7) is filled with sealant.

2. A combined water-cooled sealing structure according to claim 1, characterized in that: Two annular grooves (8) are provided on the inner shell (1), and the two sealing rubber rings (6) are respectively located in the two grooves (8).

3. A combined water-cooled sealing structure according to claim 2, characterized in that: The volume of the groove (8) is smaller than the volume of the sealing rubber ring (6).

4. The combined water-cooling sealing structure according to claim 1, characterized in that: The inner shell (1) comprises a first clamping portion (101) and a second clamping portion (102), the diameter of the first clamping portion (101) being larger than that of the second clamping portion (102); the outer shell (2) comprises a first support portion (201) and a second support portion (202), the diameter of the first support portion (201) being larger than that of the second support portion (202); the first clamping portion (101) contacts the first support portion (201) and forms an L-shaped fitting gap opening toward the outer shell (2).

5. A combined water-cooling sealing structure according to claim 4, characterized in that: The second pressing portion (102) cooperates with the second supporting portion (202) to form an L-shaped fitting gap opening toward the inner shell (1), and the glue storage groove (7) is located between the second pressing portion (102) and the second supporting portion (202).

6. A combined water-cooling sealing structure according to any one of claims 1 to 5, characterized in that: The sealant is silicone sealant.

7. A combined water-cooling sealing structure according to claim 6, characterized in that: An annular protrusion (103) is provided on the second pressing portion (102), and the protrusion (103) is used to prevent the sealant from entering the interior of the inner shell (1).

8. The combined water-cooling sealing structure according to claim 7, characterized in that: A partition plate (104) is provided on the inner shell (1), the partition plate (104) dividing the cooling chamber (3) into two parts, and the water inlet pipe (4) and the water outlet pipe (5) are respectively located on two sides of the partition plate (104).

9. A combined water-cooling sealing structure according to claim 8, characterized in that: The water inlet pipe (4) and the water outlet pipe (5) are both arranged in close proximity to the partition plate (104).

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