Glass ball sprayer

Abstract

The utility model discloses a glass ball sprayer which comprises a base, one end of the base is provided with a first connecting part, the first connecting part is used for fixing the base on a mounting plate of an electric box, and the outer contour of the radial section of the first connecting part is in a non-rotational symmetry shape. According to the glass ball spray head, when a technician installs the glass ball spray head, the spray head is exactly aligned to a battery cell, and the glass ball spray head can effectively avoid slipping between the base and the installation plate, so that the air tightness is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of fire extinguishing equipment, in particular to a glass ball spray head. Background Art

[0002] As we all know, when the temperature of the lithium-ion battery cell is too high or the temperature difference is large, the cycle life of the battery cell will be greatly reduced and affect the service life of the energy storage product. In severe cases, it will cause thermal runaway of the battery cell. Once the battery cell has thermal runaway, the battery cell will produce a large amount of flammable gas. When the content of flammable gas reaches a certain concentration, it is easy to explode when encountering a slight spark. In order to prevent the lithium-ion battery in the electric box from thermal runaway and causing an explosion, current technicians generally install glass ball nozzles in the electric box. When the lithium battery has thermal runaway, the thermal glass bubble on the glass ball nozzle will break, thereby conducting the nozzle of the glass ball nozzle and spraying the agent to extinguish the fire.

[0003] However, the inventors have discovered that existing glass ball nozzles are usually installed on the mounting plate of the electrical box using a sleeve-type base, which often makes it impossible for technicians to position the nozzle of the glass ball nozzle directly toward the battery cell, and the nozzle cannot effectively spray the agent into the space, thereby greatly reducing the fire extinguishing efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a glass ball nozzle to solve the problem that the nozzle of the traditional glass ball nozzle is difficult to be arranged in the direction facing the battery core during installation and application.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a glass ball nozzle, comprising a base, a first connecting part is provided at one end of the base, the first connecting part is used to fix the base on the mounting plate of the electrical box, and the outer contour of the radial cross section of the first connecting part is a non-rotationally symmetrical shape.

[0006] Furthermore, the outer contour of the radial cross section of the first connecting portion is in a D-shape.

[0007] Furthermore, it also includes a first nut, the first connecting part includes an arc-shaped outer wall, the arc-shaped outer wall is provided with a first thread matching with the first nut, so that the first nut is threadedly sleeved on the first connecting part, and a limiting part is also provided at a position of the base close to the first connecting part, the first nut abuts against the side wall on one side of the mounting plate, and the limiting part abuts against the side wall on the other side of the mounting plate.

[0008] Furthermore, it also includes a sealing gasket, a sealing portion with a smooth outer wall is provided between the first connecting portion and the limiting portion, and the sealing gasket is sleeved on the sealing portion.

[0009] Furthermore, the length of the sealing portion is smaller than the thickness of the sealing gasket.

[0010] Furthermore, it also includes a glass ball holder, the glass ball holder is provided with a positioning part, the base is provided with a through hole, the positioning part is arranged in the through hole, the outer contour of the radial cross section of the positioning part is a non-rotationally symmetrical shape, and the inner contour of the through hole matches the outer contour of the positioning part.

[0011] Furthermore, the outer contour of the radial cross section of the positioning portion is in a D-shape.

[0012] Furthermore, the positioning portion is a stepped protrusion on the outer wall of the glass ball holder, the through hole includes a first hole segment and a second hole segment which are stepped along the length direction, the inner contour of the radial cross section of the second hole segment matches the outer contour of the radial cross section of the positioning portion, and the protrusion passes through the first hole segment and engages with the second hole segment.

[0013] Furthermore, it also includes a joint, and the other end of the base is provided with a second connecting part, and the joint is connected to the second connecting part.

[0014] Furthermore, it also includes a thermosensitive glass ball, a plunger rod and an elastic member, the plunger rod and the elastic member are arranged in the glass ball holder, one end of the elastic member abuts the joint, and the other end of the elastic member abuts the plunger rod, the thermosensitive glass ball is arranged on the glass ball holder, and one end of the thermosensitive glass ball abuts the glass ball holder, and the other end of the thermosensitive glass ball abuts the plunger rod.

[0015] The beneficial effect of the utility model is that the glass ball nozzle designed by the utility model has anti-fool measures. Specifically, the base of the glass ball nozzle passes through the mounting hole of the mounting plate through the first connecting part, so that the glass ball nozzle is fixed on the mounting plate, wherein the outer contour of the first connecting part and the inner contour of the mounting hole are non-rotationally symmetrical shapes, so that the technician can accurately set the glass ball nozzle to face the battery cell when installing the glass ball nozzle, and the glass ball nozzle can effectively avoid slipping between the base and the mounting plate to ensure air tightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the glass ball nozzle of the utility model in one embodiment;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the middle base at one viewing angle;

[0018] Figure 3 for Figure 1Schematic diagram of the structure of the middle base from another perspective;

[0019] Figure 4 for Figure 3 Middle AA section view;

[0020] Figure 5 for Figure 1 Schematic diagram of the structure of the glass ball bracket at one viewing angle;

[0021] Figure 6 for Figure 1 Schematic diagram of the structure of the glass ball bracket in another perspective;

[0022] Figure 7 for Figure 1 Schematic diagram of the structure of the mounting holes of the mounting plate.

[0023] Description of labels:

[0024] 1. Base; 11. First connecting portion; 111. Arc-shaped outer wall; 112. First thread; 12. Through hole; 121. First hole section; 122. Second hole section; 13. Position limiting portion; 14. Sealing portion; 15. Second connecting portion;

[0025] 2. Mounting plate; 21. Mounting hole;

[0026] 3. First nut;

[0027] 4. Sealing gasket;

[0028] 5. Glass ball bracket; 51. Positioning unit;

[0029] 6. Connector;

[0030] 7. Thermosensitive glass ball;

[0031] 8. Plunger rod;

[0032] 9. Elastic parts. DETAILED DESCRIPTION

[0033] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0034] Please refer to Figures 1 to 7 As shown, the utility model designs a glass ball nozzle, including a base 1, a first connecting portion 11 is provided at one end of the base 1, the first connecting portion 11 is used to fix the base 1 on a mounting plate 2 of an electrical box, the outer contour of the radial cross section of the first connecting portion 11 is a non-rotationally symmetrical shape, and the mounting plate 2 is provided with a mounting hole 21 matching the outer contour of the first connecting portion 11 for the first connecting portion 11 to pass through.

[0035] From the above description, it can be seen that the beneficial effect of the utility model is that the glass ball nozzle designed by the utility model has an anti-fool measure. Specifically, the base 1 of the glass ball nozzle passes through the mounting hole 21 of the mounting plate 2 through the first connecting part 11, so that the glass ball nozzle is fixed on the mounting plate 2, wherein the outer contour of the first connecting part 11 and the inner contour of the mounting hole 21 are non-rotationally symmetrical shapes, so that the technician can accurately set the glass ball nozzle to face the battery cell when installing the glass ball nozzle, and the glass ball nozzle can effectively avoid slipping between the base 1 and the mounting plate 2 to ensure air tightness.

[0036] Furthermore, the outer contour of the radial cross section of the first connecting portion 11 is in a D-shape.

[0037] Furthermore, it also includes a first nut 3, the first connecting part 11 includes an arcuate outer wall 111, and the arcuate outer wall 111 is provided with a first thread 112 that matches the first nut 3, so that the first nut 3 is threadedly sleeved on the first connecting part 11, and the base 1 is also provided with a limiting part 13 at a position close to the first connecting part 11, the first nut 3 abuts against the side wall of one side of the mounting plate 2, and the limiting part 13 abuts against the side wall of the other side of the mounting plate 2.

[0038] From the above description, it can be seen that the first connection part 11 is set to have a D-shaped outer contour of the radial cross section, and a first thread 112 can be set on the arc-shaped outer wall 111 of the first connection part 11, so that the first nut 3 and the limiting part 13 lock the base 1 on the mounting plate 2.

[0039] In other preferred embodiments of the present invention, the first connecting portion 11 can also be fixed to the mounting plate 2 by snap fit or other means. When the first connecting portion 11 is fixed to the mounting plate 2 by other means, the outer contour of the radial cross section of the first connecting portion 11 can also be set to a non-rotationally symmetrical shape such as a trapezoid or a fan.

[0040] Furthermore, it also includes a sealing gasket 4 . A sealing portion 14 with a smooth outer wall is provided between the first connecting portion 11 and the limiting portion 13 . The sealing gasket 4 is sleeved on the sealing portion 14 .

[0041] From the above description, it can be seen that the sealing gasket 4 can improve the fixed sealing between the mounting plate 2 and the glass ball nozzle, wherein the base 1 is provided with a sealing portion 14 with a smooth outer wall to place the sealing gasket 4, which can make the placement position of the sealing gasket 4 on the base 1 smooth without any sharp objects blocking, thereby improving the safety of the sealing gasket 4 and avoiding high-frequency breakage of the sealing gasket 4.

[0042] Furthermore, the length of the sealing portion 14 is smaller than the thickness of the sealing gasket 4 .

[0043] From the above description, it can be seen that the length of the sealing portion 14 is set to be smaller than the thickness of the sealing gasket 4, which can ensure that after the first nut 3 is locked in place, the sealing gasket 4 is compressed and tightly fitted on the mounting plate 2 under the interference of the limiting portion 13 and the sealing bolt, thereby further improving the sealing performance of the sealing gasket 4.

[0044] Furthermore, it includes a glass ball holder 5, which is provided with a positioning portion 51, and the base 1 is provided with a through hole 12. The positioning portion 51 is arranged in the through hole 12, and the outer contour of the radial cross section of the positioning portion 51 is a non-rotationally symmetrical shape, and the inner contour of the through hole 12 matches the outer contour of the positioning portion 51.

[0045] From the above description, it can be seen that the glass ball holder 5 and the base 1 can be positioned and installed, and a nozzle is provided on the glass ball holder 5, which is beneficial to the positioning of the nozzle of the glass ball holder 5, so that the glass ball nozzle can be installed with the nozzle of the glass ball holder 5 facing the battery cell.

[0046] Furthermore, the outer contour of the radial cross section of the positioning portion 51 is in a D-shape.

[0047] Furthermore, the positioning portion 51 is a stepped protrusion on the outer wall of the glass ball holder 5, and the through hole 12 includes a first hole segment 121 and a second hole segment 122 which are stepped along the length direction, and the inner contour of the radial cross section of the second hole segment 122 matches the outer contour of the radial cross section of the positioning portion 51, and the protrusion passes through the first hole segment 121 and engages with the second hole segment 122.

[0048] From the above description, it can be seen that the positioning part 51 can be engaged with the second hole section 122, which makes the positioning part 51 not only play a role in positioning and installing the glass ball holder 5 and the base 1, but also enables the glass ball holder 5 and the base 1 to be engaged and fixed through the fixing part and the second hole section 122, thereby improving the stability between the glass ball holder 5 and the base 1.

[0049] Furthermore, it also includes a joint 6 . The other end of the base 1 is provided with a second connecting portion 15 , and the joint 6 is connected to the second connecting portion 15 .

[0050] It can be seen from the above description that the connector 6 is used to connect the medicine pipeline arranged on the other side of the mounting plate 2.

[0051] Furthermore, it also includes a thermosensitive glass ball 7, a plunger rod 8 and an elastic member 9, the plunger rod 8 and the elastic member 9 are arranged in the glass ball holder 5, one end of the elastic member 9 abuts the joint 6, and the other end of the elastic member 9 abuts the plunger rod 8, the thermosensitive glass ball 7 is arranged on the glass ball holder 5, and one end of the thermosensitive glass ball 7 abuts the glass ball holder 5, and the other end of the thermosensitive glass ball 7 abuts the plunger rod 8.

[0052] From the above description, it can be seen that when the connector 6 is connected to the agent pipeline, the agent pipeline will be pressurized, and a certain air pressure will be formed in the glass ball nozzle. Under the action of the air pressure and the elastic member 9, the plunger rod 8 will tend to move into the battery pack, but due to the presence of the thermosensitive glass bulb, the plunger rod 8 will not continue to move, and the nozzle of the glass ball nozzle will be sealed; when a fire occurs in the battery pack, the temperature in the battery pack rises, and when it reaches the set temperature of the thermosensitive glass bulb, the thermosensitive glass bulb will break and detach from the glass ball holder 5. Under the action of the air pressure and the elastic member 9, the plunger rod 8 will move to one end close to the glass ball holder 5. At this time, the nozzle of the glass ball nozzle is connected to the agent pipeline, and the fire extinguishing agent will be released.

[0053] Embodiment 1

[0054] Please refer to Figures 1 to 7 Embodiment 1 of the present invention is: a glass ball nozzle, comprising a base 1, a glass ball bracket 5 and a joint 6, wherein the base 1 is used to fix the glass ball nozzle on a mounting plate 2 of an electrical box, and the glass ball bracket 5 and the joint 6 are respectively arranged at two ends of the base 1.

[0055] In the first embodiment of the present invention, a first connecting portion 11 is provided at one end of the base 1, and the base 1 is fixed to the mounting plate 2 through the first connecting portion 11. In order to facilitate the setting of the nozzle of the glass ball nozzle facing the battery cell in the battery box during installation, the outer contour of the radial cross-section of the first connecting portion 11 is a non-rotationally symmetrical shape, and a mounting hole 21 matching the outer contour of the first connecting portion 11 is provided on the mounting plate 2 for the first connecting portion 11 to pass through; the first connecting portion 11 matches the shape of the mounting hole 21, which can effectively play a role in accurately positioning the installation direction of the glass ball nozzle, thereby ensuring that the nozzle of the glass ball nozzle can be accurately set facing the battery cell; in addition, the structures of the first connecting portion 11 and the mounting hole 21 cooperate with each other to avoid slipping and relative rotation between the base 1 and the mounting plate 2, thereby effectively improving the firmness of the locking between the base 1 and the mounting plate 2.

[0056] Please refer to Figures 1 to 3, the radial cross-section of the first connecting portion 11 is D-shaped, so the first connecting portion 11 includes an arc-shaped outer wall 111; in the first embodiment, the glass ball nozzle also includes a first nut 3, the base 1 is locked and fixed on the mounting plate 2 through the first nut 3, and the arc-shaped outer wall 111 is provided with a first thread 112 that matches the first nut 3, so that the first nut 3 is sleeved on the first connecting portion 11, and the base 1 is also provided with a limiting portion 13 at a position close to the first connecting portion 11. In actual application, after the first connecting portion 11 passes through the mounting hole 21, the limiting portion 13 contacts the mounting plate 2 to limit and fix the base 1, and then the technician can install the first nut 3 on the first connecting portion 11 through the first thread 112, so that the first nut 3 contacts the side wall of one side of the mounting plate 2, and the limiting portion 13 contacts the side wall of the other side of the mounting plate 2, so that the base 1 is locked on the mounting plate 2 through the first nut 3.

[0057] like Figure 3 As shown, specifically, in the first embodiment, the diameter R1 of the arcuate outer wall 111 of the first connecting portion 11 is 17.2±0.1 mm, the first connecting portion 11 also includes a plane outer wall, and the shortest distance D1 from the center of the arcuate outer wall 111 to the plane outer wall is 7.6±0.1 mm; accordingly, please refer to Figure 7 The mounting hole 21 includes an arc-shaped inner wall and a plane inner wall, the diameter R2 of the arc-shaped inner wall is 20.2±0.1 mm, and the shortest distance D2 from the center of the arc-shaped inner wall to the plane inner wall is 8.6±0.1 mm.

[0058] Preferably, the glass ball nozzle also includes a sealing gasket 4, a sealing portion 14 with a smooth outer wall is provided between the first connecting portion 11 and the limiting portion 13, and the sealing gasket 4 is sleeved on the sealing portion 14. The sealing gasket 4 can improve the fixed sealing between the mounting plate 2 and the glass ball nozzle, wherein the base 1 is provided with a sealing portion 14 with a smooth outer wall so that the sealing gasket 4 can be placed smoothly without any sharp objects blocking the position of the base 1, thereby improving the safety of the sealing gasket 4 and avoiding high-frequency fracture of the sealing gasket 4; in the first embodiment, the length of the sealing portion 14 is less than the thickness of the sealing gasket 4, which can ensure that after the first nut 3 is locked in place, the sealing gasket 4 is compressed and tightly fits on the mounting plate 2 under the action of the limiting portion 13 and the sealing bolt, so as to further improve the sealing of the sealing gasket 4.

[0059] Please refer to Figure 1In the first embodiment, the glass ball nozzle also includes a glass ball holder 5, a positioning portion 51 is provided on the glass ball holder 5, and a through hole 12 is provided on the base 1; specifically, the positioning portion 51 is a stepped protrusion on the outer wall of the glass ball holder 5, and the through hole 12 includes a first hole section 121 and a second hole section 122 which are stepped along the length direction, and the inner contour of the radial cross section of the second hole section 122 matches the outer contour of the radial cross section of the positioning portion 51, and the protrusion passes through the first hole section 121 and engages with the second hole section 122; the positioning portion 51 can not only play a role in positioning and installing the glass ball holder 5 and the base 1, ensuring that the nozzle of the glass ball nozzle can be arranged directly facing the battery cell, but also enable the glass ball holder 5 and the base 1 to be engaged and fixed by the fixing portion and the second hole section 122, thereby improving the stability between the glass ball holder 5 and the base 1.

[0060] In the first embodiment, the glass ball holder 5 is specifically provided at one end of the base 1 close to the first connecting portion 11, and the other end of the base 1 is provided with a second connecting portion 15, and the joint 6 is provided on one end of the base 1 close to the second connecting portion 15; the glass ball nozzle also includes a thermosensitive glass ball 7, a plunger rod 8 and an elastic member 9, the plunger rod 8 and the elastic member 9 are provided in the glass ball holder 5, one end of the elastic member 9 abuts the joint 6, and the other end of the elastic member 9 abuts the plunger rod 8, the thermosensitive glass ball 7 is provided on the glass ball holder 5, and one end of the thermosensitive glass ball 7 abuts the glass ball holder 5, and the other end of the thermosensitive glass ball 7 abuts the plunger rod 8.

[0061] In the first embodiment of the present invention, the connector 6 is used to connect the medicine pipeline arranged on the other side of the mounting plate 2. When the connector 6 is connected to the medicine pipeline, the medicine pipeline will be pressurized, and a certain air pressure will be formed in the glass ball nozzle. Under the action of the air pressure and the elastic member 9, the plunger rod 8 will tend to move into the battery pack. However, due to the presence of the thermosensitive glass bulb, the plunger rod 8 will not continue to move, and the nozzle of the glass ball nozzle will be sealed under the action of the plunger rod 8. When a fire occurs in the electrical box, the temperature in the electrical box rises, and when the set temperature of the thermosensitive glass bulb is reached, the thermosensitive glass bulb will break and detach from the glass ball holder 5. The plunger rod 8 will move to one end close to the glass ball holder 5 under the action of the air pressure and the elastic member 9. At this time, the nozzle of the glass ball nozzle is connected to the medicine pipeline, and the fire extinguishing agent will be released.

[0062] In summary, the glass ball nozzle designed by the utility model has anti-fool measures. Specifically, the base 1 of the glass ball nozzle passes through the mounting hole 21 of the mounting plate 2 through the first connecting part 11, so that the glass ball nozzle is fixed on the mounting plate 2, wherein the outer contour of the first connecting part 11 and the inner contour of the mounting hole 21 are non-rotationally symmetrical shapes, so that the technician can accurately set the glass ball nozzle facing the battery cell when installing the glass ball nozzle, and the glass ball nozzle can effectively avoid slipping between the base 1 and the mounting plate 2 to ensure air tightness.

[0063] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A glass ball nozzle, characterized in that: It comprises a base, one end of which is provided with a first connecting part, the first connecting part is used to fix the base on the mounting plate of the electrical box, and the outer contour of the radial cross section of the first connecting part is in a non-rotationally symmetrical shape.

2. The glass ball nozzle according to claim 1, characterized in that: The outer contour of the radial cross section of the first connecting portion is in a D-shape.

3. The glass ball nozzle according to claim 2, characterized in that: It also includes a first nut, the first connecting part includes an arc-shaped outer wall, the arc-shaped outer wall is provided with a first thread matching with the first nut, so that the first nut is threadedly sleeved on the first connecting part, and a limiting part is also provided at a position of the base close to the first connecting part, the first nut abuts against the side wall on one side of the mounting plate, and the limiting part abuts against the side wall on the other side of the mounting plate.

4. The glass ball nozzle according to claim 3, characterized in that: It also includes a sealing gasket. A sealing portion with a smooth outer wall is provided between the first connecting portion and the limiting portion, and the sealing gasket is sleeved on the sealing portion.

5. The glass ball nozzle according to claim 4, characterized in that: The length of the sealing portion is smaller than the thickness of the sealing gasket.

6. The glass ball nozzle according to claim 1, characterized in that: It also includes a glass ball bracket, which is provided with a positioning part, the base is provided with a through hole, the positioning part is arranged in the through hole, the outer contour of the radial cross section of the positioning part is a non-rotationally symmetrical shape, and the inner contour of the through hole matches the outer contour of the positioning part.

7. The glass ball nozzle according to claim 6, characterized in that: The outer contour of the radial cross section of the positioning portion is in a D-shape.

8. The glass ball nozzle according to claim 6, characterized in that: The positioning portion is a stepped protrusion on the outer wall of the glass ball holder, the through hole includes a first hole segment and a second hole segment which are stepped along the length direction, the inner contour of the radial cross section of the second hole segment matches the outer contour of the radial cross section of the positioning portion, the protrusion passes through the first hole segment and engages with the second hole segment.

9. The glass ball nozzle according to claim 6, characterized in that: It also includes a joint, and the other end of the base is provided with a second connecting part, and the joint is connected to the second connecting part.

10. The glass ball nozzle according to claim 9, characterized in that: It also includes a thermosensitive glass ball, a plunger rod and an elastic member, wherein the plunger rod and the elastic member are arranged in the glass ball holder, one end of the elastic member abuts the joint, and the other end of the elastic member abuts the plunger rod, the thermosensitive glass ball is arranged on the glass ball holder, and one end of the thermosensitive glass ball abuts the glass ball holder, and the other end of the thermosensitive glass ball abuts the plunger rod.

Images