Valve and charging device

Abstract

The utility model discloses a valve and a charging device. The valve comprises a driving part and a connecting part connected with the driving part. One end, far away from the connecting part, of the driving part is inwards concavely provided with a ventilation cavity extending into the connecting part. A ventilation groove communicating with the ventilation cavity is formed in the side wall of the connecting part, and a first screw joint part is arranged on the side wall of the connecting part. The valve can ensure the air exchange between the interior of the charging device and the exterior of the charging device, and ensures the sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of valves, and in particular to a valve and a charging device. Background Technology

[0002] With the rapid development of electric vehicle battery technology, the market demand for high-power charging devices, such as charging guns and charging sockets, is increasing. Currently, high-power charging devices that use air cooling or blower cooling suffer from the problem of not being able to simultaneously achieve adequate ventilation and sealing. Utility Model Content

[0003] The main objective of this utility model is to provide a valve, including a drive unit and a connecting unit connected to the drive unit;

[0004] The end of the drive unit away from the connecting part is recessed inward and extends into the connecting part;

[0005] The side wall of the connecting part is provided with a venting groove that communicates with the venting cavity, and the side wall of the connecting part is provided with a first screw connection.

[0006] Optionally, in one embodiment of the present invention, the ventilation groove includes a first ventilation groove and a second ventilation groove, wherein the first ventilation groove and the second ventilation groove are arranged at intervals relative to each other on the side wall of the connecting part.

[0007] Optionally, in one embodiment of the present invention, the ventilation cavity is provided with a partition, the partition dividing the ventilation cavity into a first ventilation cavity and a second ventilation cavity that are spaced apart, the first ventilation cavity and the first ventilation groove are connected to form a first ventilation channel, and the second ventilation cavity and the second ventilation groove are connected to form a second ventilation channel.

[0008] Optionally, in one embodiment of the present invention, the spacer is a spacer plate passing through the axis of the ventilation cavity; the first ventilation channel and the second ventilation channel are respectively disposed at opposite ends of the spacer plate.

[0009] Optionally, in one embodiment of the present invention, the driving part is a gear.

[0010] Optionally, in one embodiment of the present invention, the connecting part is a connecting rod, and one end of the connecting rod is connected to the center of the driving part.

[0011] Optionally, in one embodiment of the present invention, the valve is further provided with a sealing portion at the end away from the drive portion, and the sealing portion extends radially from the outer wall of the connecting portion.

[0012] Optionally, in one embodiment of the present invention, the driving part has a connecting groove surrounding the connecting part on the side facing the connecting part.

[0013] Optionally, in one embodiment of the present invention, the first screw connection is at least partially located between the vent groove and the drive portion.

[0014] This utility model also proposes a charging device, including a housing, an opening on the housing, a valve as described above on the opening, a driving part of the valve being disposed inside the housing, a connecting part of the valve being disposed in the opening, and a second threaded part being disposed in the opening, wherein the first threaded part and the second threaded part are threadedly connected.

[0015] Optionally, in one embodiment of the present invention, a driving mechanism is further provided inside the housing. The driving mechanism includes a motor and a driving component connected to the motor. The driving component drives the valve to move along the opening axis direction so that the vent groove extends into or out of the opening, thereby realizing the closing and opening of the valve.

[0016] Optionally, in one embodiment of the present invention, when the driving part is a gear, the driving member includes a control rod and steel balls spaced apart on the control rod;

[0017] The spacing and size of the steel balls are matched with the tooth grooves on the gear so that the steel balls and the drive unit mesh;

[0018] The motor drives the control lever to move, which in turn causes the steel ball to drive the drive unit to rotate around the axial direction.

[0019] Optionally, in one embodiment of the present invention, the housing is provided with an inwardly protruding cylindrical connecting wall, and the opening is formed in the connecting wall;

[0020] When the connecting part is provided with a connecting groove, the size of the connecting groove matches the size of the connecting wall so that when the valve is opened, the connecting wall portion is accommodated in the connecting groove.

[0021] Optionally, in one embodiment of the present invention, when the valve is provided with a closing part, the diameter of the closing part is greater than or equal to the diameter of the opening.

[0022] This utility model valve has a vent chamber recessed inward at the end of the drive unit away from the connecting unit, extending into the connecting unit. A vent groove communicating with the vent chamber is provided on the side wall of the connecting unit. This allows gas inside the charging device to flow to the outside of the charging device through the vent chamber and vent groove, and gas outside the charging device to flow into the charging device through the vent groove and vent chamber, thereby realizing gas exchange between the inside and outside of the charging device. By providing a first threaded part on the connecting unit, the first threaded part can be threadedly connected to a second threaded part at the opening of the charging device, thereby ensuring that when the drive unit rotates, the valve can move along the valve axis, allowing the vent groove to extend out of the opening for gas exchange, or the vent groove to extend into the opening to ensure the airtightness of the entire charging device. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the installation structure of an embodiment of the valve, drive mechanism, and housing of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of an embodiment of the valve of this utility model;

[0026] Figure 3 This is a side view of an embodiment of the valve of this utility model;

[0027] Figure 4 for Figure 3 Cross-sectional view along point AA;

[0028] Figure 5 This is a three-dimensional structural diagram of another embodiment of the valve of this utility model.

[0029] Explanation of icon numbers:

[0030] 10. Valve; 11. Drive unit; 111. Connecting groove; 12. Connecting part; 121. First vent groove; 122. Second vent groove; 131. First vent chamber; 132. Second vent chamber; 14. First vent channel; 15. Second vent channel; 16. Sealing part; 17. Spacing part; 18. First screw connection part; 20. Drive mechanism; 21. Motor; 22. Drive component; 221. Control lever; 222. Steel ball; 30. Housing; 31. Opening; 32. Connecting wall; 33. Second screw connection part.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] With the rapid development of electric vehicle battery technology, the market demand for high-power charging devices, such as charging guns and charging sockets, is increasing. Currently, high-power charging devices that use air cooling or blower cooling suffer from the problem of not being able to simultaneously achieve adequate ventilation and sealing.

[0036] In view of this, the present invention proposes a valve 10, which has a vent cavity extending into the connecting part 12 recessed at the end of the driving part 11 away from the connecting part 12, and a vent groove communicating with the vent cavity on the side wall of the connecting part 12. This allows the gas inside the charging device to flow to the outside of the charging device through the vent cavity and the vent groove, and the gas outside the charging device to flow into the inside of the charging device through the vent groove and the vent cavity, thereby realizing gas exchange between the inside and outside of the charging device. By providing a first screw connection 18 on the connecting part 12, the first screw connection 18 can be threadedly connected to the second screw connection 33 at the opening 31 of the charging device, thereby ensuring that when the driving part 11 rotates, the valve 10 can move along the axis of the valve 10, so that the vent groove can extend out of the opening 31 for gas exchange, or the vent groove can extend into the opening 31 to ensure the airtightness of the entire charging device.

[0037] To better understand the above technical solution, a detailed explanation of the technical solution is provided below with reference to the accompanying drawings.

[0038] like Figure 1-5 As shown, the present invention proposes a valve 10, including a drive part 11 and a connecting part 12 connected to the drive part 11; the drive part 11 is recessed at one end away from the connecting part 12 and has a vent cavity extending into the connecting part 12; the side wall of the connecting part 12 is provided with a vent groove communicating with the vent cavity, and the side wall of the connecting part 12 is provided with a first screw connection part 18.

[0039] Understandably, charging devices such as charging guns, charging sockets, and connectors have a housing 30. The housing 30 contains heating elements such as power terminals. These power terminals generate a large amount of heat during use, and the air inside the housing 30 absorbs this heat, causing the air temperature inside the housing 30 to rise. The housing 30 has an opening 31, on which a valve 10 is installed. The valve 10 includes a drive unit 11 and a connecting unit 12 connected to the drive unit 11. The end of the drive unit 11 furthest from the connecting unit 12 has a recessed vent cavity extending into the connecting unit 12. A vent groove communicating with the vent cavity is provided on the side wall of the connecting unit 12, allowing high-temperature gas inside the housing 30 to flow to the outside of the housing 30 via the vent cavity and vent groove. Conversely, gas outside the housing 30 can flow into the housing 30 via the vent groove and vent cavity, thus achieving gas exchange between the inside and outside of the charging device. By providing a first threaded portion 18 on the connecting portion 12, the first threaded portion 18 can be threadedly connected to the second threaded portion 33 at the opening 31 of the charging device, thereby ensuring that when the driving portion 11 rotates, the valve 10 can move along the axis of the valve 10, so that the vent groove can extend out of the opening 31 for gas exchange, or the vent groove can extend into the opening 31 to ensure the airtightness of the entire charging device.

[0040] Furthermore, in one embodiment of the present invention, the ventilation groove includes a first ventilation groove 121 and a second ventilation groove 122, wherein the first ventilation groove 121 and the second ventilation groove 122 are arranged at intervals relative to each other on the side wall of the connecting portion 12.

[0041] Understandably, by providing the first ventilation groove 121 and the second ventilation groove 122 at relatively intervals on the side wall of the connecting part 12, the contact area between the ventilation cavity and the external air of the housing 30 is increased, thereby increasing the air circulation efficiency.

[0042] Furthermore, in one embodiment of the present invention, a partition 17 is provided in the ventilation cavity, the partition 17 dividing the ventilation cavity into a first ventilation cavity 131 and a second ventilation cavity 132 that are spaced apart. The first ventilation cavity 131 and the first ventilation groove 121 are connected to form a first ventilation channel 14, and the second ventilation cavity 132 and the second ventilation groove 122 are connected to form a second ventilation channel 15.

[0043] Understandably, by providing a spacer 17 on valve 10, two ventilation channels are formed on one valve 10. Normal-temperature air can enter the air pump through the second ventilation channel 15, while high-temperature gas inside the housing 30 can exit the housing 30 through the first ventilation channel 14. The path of normal-temperature air entering the housing 30 and the path of high-temperature air leaving the housing 30 do not overlap, further improving heat dissipation efficiency. Preferably, an air pump can be installed inside the housing 30 to further improve heat dissipation efficiency for the power terminals. When an air pump or similar component is installed inside the housing 30, the air pump can deliver normal-temperature gas to the power terminals through pipelines to cool them. At this time, high-temperature gas inside the housing 30 can exit the housing 30 through the first ventilation channel 14, while normal-temperature air can enter the air pump through the second ventilation channel 15. The path of normal-temperature air entering the air pump and the path of high-temperature air leaving the housing 30 do not overlap, ensuring that the temperature of the air entering the air pump is not affected by the high-temperature air inside the housing 30. Preferably, the partition 17 is a partition plate passing through the axis of the ventilation cavity; the first ventilation channel 14 and the second ventilation channel 15 are respectively disposed at opposite ends of the partition plate.

[0044] Further, in one embodiment of this utility model, the driving part 11 is a gear. It is understood that the gear has a tooth groove, and the driving mechanism 20 may have another gear meshing with the tooth groove. The rotation of the gear on the driving mechanism 20 drives the rotation of the gear in the driving part 11, which in turn drives the rotation of the connecting part 12. Since the first threaded part 18 on the connecting part 12 and the second threaded part 33 on the opening 31 are threadedly connected, the rotation of the connecting part 12 causes the entire valve 10 to rotate while moving along the axis of the valve 10. This allows the vent groove on the connecting part 12 to extend into the opening 31 to ensure the sealing of the opening 31, or the vent groove on the connecting part 12 to extend out of the opening 31 so that the outside of the housing 30 and the inside of the housing 30 can circulate gas through the vent groove and the vent cavity. Preferably, the connecting part 12 is a connecting rod, one end of which is connected to the center of the driving part 11. Preferably, the first threaded part 18 is at least partially located between the vent groove and the driving part 11.

[0045] Furthermore, in one embodiment of the present invention, the valve 10 is provided with a sealing part 16 at the end away from the drive part 11, and the sealing part 16 extends radially from the outer wall of the connecting part 12.

[0046] Understandably, by providing a sealing portion 16 on the valve 10, the sealing portion 16 can block the opening 31 when the valve 10 is closed, further improving the sealing effect. Preferably, the diameter of the sealing portion 16 is greater than or equal to the diameter of the opening 31.

[0047] Furthermore, in one embodiment of the present invention, the driving part 11 is provided with a connecting groove 111 around the connecting part 12 on the side facing the connecting part 12.

[0048] Understandably, when a cylindrical connecting wall 32 is provided at the opening 31, a connecting groove 111 is provided around the connecting part 12 on the side of the driving part 11 facing the opening 31 to prevent interference between the movement of the connecting wall 32 and the driving part 11 during the opening of the valve 10.

[0049] This utility model also provides a charging device, including a housing 30, an opening 31 on the housing 30, a valve 10 as described above on the opening 31, a driving part 11 of the valve 10 disposed inside the housing 30, a connecting part 12 of the valve 10 disposed in the opening 31, and a second threaded part 33 disposed in the opening 31, wherein a first threaded part 18 and the second threaded part 33 are threadedly connected.

[0050] Understandably, since the first threaded part 18 on the connecting part 12 and the second threaded part 33 on the opening 31 are threadedly connected, the rotation of the connecting part 12 causes the entire valve 10 to move along the axis of the valve 10, thereby allowing the vent groove on the connecting part 12 to extend into the opening 31 to ensure the sealing of the opening 31, or the vent groove on the connecting part 12 to extend out of the opening 31 so that the outside of the housing 30 can communicate with the inside of the housing 30 through the vent groove and vent chamber.

[0051] Furthermore, in one embodiment of the present invention, a drive mechanism 20 is also provided inside the housing 30. The drive mechanism 20 includes a motor 21 and a drive member 22 connected to the motor 21. The drive member 22 drives the valve 10 to move along the axial direction of the opening 31 so that the vent groove extends into or out of the opening 31, thereby realizing the closing and opening of the valve 10.

[0052] Understandably, the driving component 2232 can be a gear, and the driving part 11 is a gear meshing with the driving component 22. The connecting part 12 is threadedly connected to the inner wall of the opening 31. The rotation of the driving component 22 is controlled by the motor 21, which in turn drives the rotation of the driving part 11. When the driving part 11 rotates, because the connecting part 12 is threadedly connected to the wall of the opening 31, the rotation of the driving part 11 will drive the entire valve 10 to move up and down along the axial direction. Of course, the driving component 22 can also control the valve 10 to move along the axial direction of the opening 31 in other ways, which is not limited here.

[0053] Furthermore, in one embodiment of the present invention, when the driving part 11 is a gear, the driving member 22 includes a control rod 221 and steel balls 222 spaced apart on the control rod 221; the spacing and size of the steel balls 222 match the tooth grooves on the gear so that the steel balls 222 mesh with the driving part 11; the motor 21 drives the control rod 221 to move, thereby causing the steel balls 222 to drive the driving part 11 to rotate around the axial direction.

[0054] Understandably, during the opening and closing of valve 10, valve 10 not only rotates along the axial direction but also moves up and down along the axial direction. If the drive component 22 is configured as a gear, friction will occur between the drive component 22 and the drive unit 11 due to the up-and-down movement of valve 10 along the axial direction. However, by configuring the drive component 22 as a control lever 221 and a steel ball 222, the movement of the control lever 221 causes the steel ball 222 to drive the drive unit 11 to rotate around the axial direction. Rolling friction is generated between the steel ball 222 and the tooth groove wall on the gear of the drive unit 11, thereby reducing the friction loss between the two.

[0055] Furthermore, in one embodiment of the present invention, the housing 30 is provided with a cylindrical connecting wall 32 protruding inward, and the opening 31 is formed in the connecting wall 32; when the connecting part 12 is provided with a connecting groove 111, the size of the connecting groove 111 matches the size of the connecting wall 32, so that when the valve 10 is opened, the connecting wall 32 is partially accommodated in the connecting groove 111.

[0056] Understandably, by providing a cylindrical connecting wall 32 on the housing 30, the depth of the opening 31 is increased, the length of the threaded connection between the opening 31 and the connecting part 12 is increased, and the stability of the connection between the opening 31 and the connecting part 12 is also improved.

[0057] Furthermore, in one embodiment of this utility model, when the valve 10 is provided with a sealing portion 16, the diameter of the sealing portion 16 is greater than or equal to the diameter of the opening 31. The fact that the diameter of the sealing portion 16 is greater than or equal to the diameter of the opening 31 allows the sealing portion 16 to block the opening 31 when the valve 10 is closed, further improving the sealing effect.

[0058] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

[0059] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A valve (10) characterized by, The valve (10) comprises a driving part (11) and a connecting part (12) connected with the driving part (11); The end of the driving part (11) away from the connecting part (12) is inwardly recessed with a ventilation cavity extending into the connecting part (12); The side wall of the connecting part (12) is provided with a ventilation groove in communication with the ventilation cavity, and the side wall of the connecting part (12) is provided with a first screw connection part (18).

2. A valve (10) as claimed in claim 1, characterised in that The ventilation groove comprises a first ventilation groove (121) and a second ventilation groove (122), and the first ventilation groove (121) and the second ventilation groove (122) are oppositely and spacedly arranged on the side wall of the connecting part (12).

3. A valve (10) as claimed in claim 2, characterised in that The ventilation cavity is provided with a spacing part (17), and the spacing part (17) divides the ventilation cavity into a first ventilation cavity (131) and a second ventilation cavity (132) which are spacedly arranged, the first ventilation cavity (131) and the first ventilation groove (121) are in communication to form a first ventilation passage (14), and the second ventilation cavity (132) and the second ventilation groove (122) are in communication to form a second ventilation passage (15).

4. A valve (10) as claimed in claim 3, characterised in that The spacing part (17) is a spacing plate passing through the axis of the ventilation cavity, and the first ventilation passage (14) and the second ventilation passage (15) are respectively arranged at opposite ends of the spacing plate.

5. A valve (10) as claimed in claim 1, characterised in that The driving part (11) is a gear.

6. A valve (10) as claimed in claim 5, characterised in that The connecting part (12) is a connecting rod, one end of the connecting rod is connected to the center of the driving part (11).

7. A valve (10) as claimed in claim 1, characterised in that The end of the valve (10) away from the driving part (11) is further provided with a closing part (16), and the closing part (16) is arranged radially from the outer wall of the connecting part (12).

8. A valve (10) as claimed in claim 1, characterised in that The side of the driving part (11) facing the connecting part (12) is provided with a connecting groove (111) around the connecting part (12).

9. A valve (10) as claimed in claim 1, characterised in that The first screw connection part (18) is at least partially located between the ventilation groove and the driving part (11).

10. A charging device comprising a housing (30) provided with an opening (31), characterized in that The opening (31) is provided with the valve (10) as claimed in any one of claims 1-9, the driving part (11) of the valve (10) is arranged in the housing (30), the connecting part (12) of the valve (10) is arranged in the opening (31), a second screw connection part (33) is arranged in the opening (31), and the first screw connection part (18) and the second screw connection part (33) are threadedly connected.

11. A charging device as claimed in claim 10, characterized in that The housing (30) is further provided with a driving mechanism (20), and the driving mechanism (20) comprises a motor (21) and a driving member (22) connected with the motor (21), the driving member (22) drives the valve (10) to move along the axis direction of the opening (31) to make the ventilation groove extend into or out of the opening (31) to realize the closing and opening of the valve (10).

12. A charging device as claimed in claim 11, characterized in that When the driving part (11) is a gear, the driving member (22) comprises a control rod (221) and steel balls (222) spacedly arranged on the control rod (221); The steel balls (222) are spaced and sized to match the tooth grooves on the gear, so that the steel balls (222) and the driving part (11) are engaged; The motor (21) drives the control rod (221) to move, and then the steel ball (222) drives the driving part (11) to rotate around the axis.

13. A charging device as claimed in claim 12, characterized in that The shell (30) is inwardly convex with a cylindrical connecting wall (32), and the opening (31) is formed in the connecting wall (32); When the connecting part (12) is provided with a connecting groove (111), the size of the connecting groove (111) is matched with the size of the connecting wall (32), so that when the valve (10) is opened, the connecting wall (32) is partially accommodated in the connecting groove (111).

14. A charging device as claimed in claim 10, wherein, When the valve (10) is provided with a closing part (16), the diameter of the closing part (16) is greater than or equal to the diameter of the opening (31).

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