CN216165189U - Realize gas-liquid exchange's oil storage mechanism and electron smog spinning disk atomiser - Google Patents

Realize gas-liquid exchange's oil storage mechanism and electron smog spinning disk atomiser Download PDF

Info

Publication number
CN216165189U
CN216165189U CN202122520227.7U CN202122520227U CN216165189U CN 216165189 U CN216165189 U CN 216165189U CN 202122520227 U CN202122520227 U CN 202122520227U CN 216165189 U CN216165189 U CN 216165189U
Authority
CN
China
Prior art keywords
oil
gas
oil storage
support
sealing element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202122520227.7U
Other languages
Chinese (zh)
Inventor
李彪
夏友银
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TK Precision Plastics Shenzhen Ltd
Original Assignee
TK Precision Plastics Shenzhen Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TK Precision Plastics Shenzhen Ltd filed Critical TK Precision Plastics Shenzhen Ltd
Priority to CN202122520227.7U priority Critical patent/CN216165189U/en
Application granted granted Critical
Publication of CN216165189U publication Critical patent/CN216165189U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Electrostatic Separation (AREA)

Abstract

The utility model provides an oil storage mechanism for realizing gas-liquid exchange and an electronic cigarette atomizer, wherein the oil storage mechanism comprises a suction nozzle shell and a support, a flue and an oil cavity for storing tobacco tar are arranged in the suction nozzle shell, the oil cavity is provided with an oil outlet, the end part of the support extends into the oil outlet, the outer surface of the end part of the support is in liquid-tight fit with the inner surface of the oil outlet, a smoke outlet is arranged at the top of the suction nozzle shell, the flue is communicated with the smoke outlet, the support is provided with a gas-liquid balance groove, and air enters the oil cavity through the gas-liquid balance groove. The utility model has the beneficial effects that through the matching of the first sealing element and the gas-liquid balance groove, the optimal sealing effect of the tobacco tar is ensured, the perfect gas-liquid balance effect is also ensured, the tobacco tar is further ensured to stably flow to the surface of the atomizing core in real time, the stable smoke amount is provided for consumers, and the smoking experience of the consumers is obviously improved.

Description

Realize gas-liquid exchange's oil storage mechanism and electron smog spinning disk atomiser
Technical Field
The utility model relates to the technical field of electronic cigarettes, in particular to an oil storage mechanism for realizing gas-liquid exchange and an electronic cigarette atomizer.
Background
Tobacco tar atomizing type electron cigarette, gradually become for a quick consumer goods of comparatively fashion, common electron smog spinning disk atomiser generally includes oil cup, atomizing core subassembly, sealing member, electrode needle etc. main spare part, and its theory of operation is the resistance ohmic heating mode through the atomizing core, becomes smog with liquid tobacco tar high temperature atomizing, and the specific flue gas passageway of rethread is sent into the consumer mouth to replace traditional tobacco, let the consumer experience and inhale the enjoyment. In the consumption process, whether the tobacco tar can continuously and stably supplement the tobacco tar to the surface of the heating element of the atomizing core through the oil absorption and oil guide functions of the atomizing core is one of the core factors for ensuring whether the atomized smoke quantity is stable and whether the user experience of a consumer is satisfied. The premise of realizing the function is to reasonably design the relationship between the smoke oil sealing effect in the oil storage cup and the air inlet hole required by gas-liquid balance. Firstly, the sealing is too tight, and the air inlet groove at the periphery of the sealing element is too small or not, so that proper external air is difficult to enter the oil storage cup to drive the tobacco tar to smoothly flow to the surface of the atomizing core, and the specific expression is that the amount of the tobacco tar flowing to the oil inlet of the heating element on the surface of the atomizing core is large and small, and the amount of the smoke is unstable; secondly, the sealing effect is not good, air can enter the oil storage cavity from the sealing element on the periphery of the oil storage cup, and the tobacco tar can flow to the surface of the atomizing core conveniently, but the risk of whole oil leakage and user satisfaction reduction of the atomizer is brought, the design of the sealing element of the oil storage cup needs to be optimized on the whole, the tobacco tar in the oil storage cup can be ensured to be well sealed and not leak oil for a long time, and the air channel on the periphery of the sealing element can ensure that external air can smoothly enter the oil storage cavity, so that good gas-liquid balance is realized, the liquid tobacco tar can stably flow to the surface of the atomizing core in real time, stable atomized smoke amount is provided for consumers, and the satisfaction of the consumers is improved.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil storage mechanism which comprises a suction nozzle shell and a support, wherein a flue and an oil cavity for storing tobacco tar are arranged in the suction nozzle shell, the oil cavity is provided with an oil outlet, the end part of the support extends into the oil outlet, the outer surface of the end part of the support is in liquid-tight fit with the inner surface of the oil outlet, a smoke outlet hole is formed in the top of the suction nozzle shell, the flue is communicated with the smoke outlet hole, the support is provided with a gas-liquid balance groove, and air enters the oil cavity through the gas-liquid balance groove.
As a further improvement of the utility model, the outer surface of the end part of the bracket is provided with the gas-liquid balance groove, the gas-liquid balance groove comprises a gas inlet and at least two gas outlets communicated with the gas inlet, and the gas inlet is communicated with the gas outlets through a bent groove.
As a further improvement of the present invention, the oil storage mechanism further includes a first sealing element, the first sealing element is a sealing component having openings at two ends, the first sealing element is sleeved on the outer surface of the end portion of the bracket, the first sealing element is located between the outer surface of the end portion of the bracket and the inner surface of the oil outlet, the outer surface of the end portion of the bracket and the inner surface of the oil outlet are in liquid-tight fit through the first sealing element, the gas-liquid balance groove is provided with a gas inlet and a gas outlet communicated with the gas inlet, the first sealing element covers the gas-liquid balance groove, and the lower end of the gas inlet extends out of the lower edge of the first sealing element.
As a further improvement of the present invention, the oil storage mechanism further comprises a first sealing member, the first sealing member is made of a flexible material, the first sealing member is provided with a pre-cut opening or a score line, the first sealing member seals the oil outlet, and when the bracket is not assembled with the first sealing member, the pre-cut opening or the score line is in a closed state, so as to prevent the oil smoke from leaking; when the support and the first sealing element are assembled together, the support pushes the pre-cut opening or the score line away to form a through hole, so that the tobacco tar in the oil cavity flows to the atomizing mechanism, the first sealing element is located between the outer surface of the end part of the support and the inner surface of the oil outlet, the outer surface of the end part of the support is in liquid-tight fit with the inner surface of the oil outlet through the first sealing element, the gas-liquid balancing groove is provided with a gas inlet and a gas outlet communicated with the gas inlet, the first sealing element covers the gas-liquid balancing groove, and the lower end of the gas inlet extends out of the lower edge of the first sealing element.
As a further improvement of the utility model, the oil storage mechanism further comprises an oil storage cup, an oil storage cavity in the oil storage cup forms the oil cavity, a suction nozzle shell cavity is arranged in the suction nozzle shell, the oil storage cup is positioned in the suction nozzle shell cavity, a smoke channel is formed by a gap between the outer surface of the oil storage cup and the inner surface of the shell cavity, and the smoke channel is formed by the smoke channel.
The utility model also discloses an electronic cigarette atomizer comprising the oil storage mechanism, the electronic cigarette atomizer further comprises an atomizing mechanism, the atomizing mechanism comprises a bottom cover, an atomizing core and a heating assembly, the bottom cover is connected with the suction nozzle shell, an inner cavity is formed between the bottom cover and the suction nozzle shell, the atomizing core and the heating assembly are located in the inner cavity, the atomizing core is arranged below the support, the tobacco tar in the oil storage cup flows to the atomizing core through the support, the heating assembly is used for heating and atomizing the tobacco tar leaked from the atomizing core, and the bottom cover is provided with an air inlet.
As a further improvement of the utility model, the heating assembly comprises an atomizing core heating element and an electrode needle, the atomizing core heating element is positioned below the atomizing core, the top end surface of the electrode needle is in point contact with an electrode point on the atomizing core heating element, and the electrode needle is installed on the bottom cover.
As a further improvement of the utility model, the atomization mechanism further comprises a second sealing element, and the atomization core and the bracket are sealed through the second sealing element to prevent the smoke oil from leaking from the bracket.
As a further improvement of the present invention, the atomizing mechanism further includes a sealing ring, the end of the bottom cap extends into the interior of the suction nozzle housing, and the sealing ring is located between the outer surface of the end of the bottom cap and the inner wall of the suction nozzle housing.
As a further improvement of the utility model, the bottom cover is connected with the suction nozzle shell through a buckle.
The utility model has the beneficial effects that: according to the utility model, through the matching of the first sealing element and the gas-liquid balance groove, the optimal sealing effect of the tobacco tar is ensured, and the perfect gas-liquid balance effect is also ensured, so that the tobacco tar stably flows to the surface of the atomizing core in real time, stable smoke amount is provided for consumers, and the smoking experience of the consumers is obviously improved.
Drawings
FIG. 1 is a schematic cross-sectional view of an electronic smoke atomizer;
FIG. 2 is a schematic view of a stent structure;
fig. 3 is an exploded view of the electronic smoke atomizer.
Detailed Description
As shown in fig. 1-3, the utility model discloses an electronic cigarette atomizer, which comprises an oil storage mechanism and an atomization mechanism.
The oil storage mechanism comprises a suction nozzle shell 110 and a support 210, wherein a flue and an oil cavity used for storing tobacco tar are arranged inside the suction nozzle shell 110, an oil outlet is formed in the oil cavity, the end portion of the support 210 extends into the oil outlet, the outer surface of the end portion of the support 210 is in liquid-tight fit with the inner surface of the oil outlet, a smoke outlet hole 112 is formed in the top of the suction nozzle shell 110, the flue is communicated with the smoke outlet hole 112, the support 210 is provided with a gas-liquid balance groove 211, and air enters the oil cavity through the gas-liquid balance groove 211.
The outer surface of the end part of the bracket 210 is in liquid-tight fit with the inner surface of the oil outlet, that is: the outer surface of the end part of the bracket 210 is tightly attached to the inner surface of the oil outlet, so that the smoke oil cannot leak out from the space between the outer surface of the end part of the bracket 210 and the inner surface of the oil outlet, or the outer surface of the end part of the bracket 210 and the inner surface of the oil outlet are sealed through a sealing member, thereby achieving the purpose that the smoke oil cannot leak out from the space between the outer surface of the end part of the bracket 210 and the inner surface of the oil outlet.
As an example of the oil storage mechanism, the oil chamber is a cavity inside the nozzle housing 110, and a separate flue is provided at a middle position inside the nozzle housing 110.
As a preferred embodiment of the oil storage mechanism, the oil storage mechanism further includes an oil storage cup 120, the oil storage cavity 121 inside the oil storage cup 120 forms the oil cavity, the suction nozzle housing 110 is internally provided with a suction nozzle housing cavity 111, the oil storage cup 120 is located inside the suction nozzle housing cavity 111, a gap between the outer surface of the oil storage cup 120 and the inner surface of the housing cavity 111 forms a smoke channel 500, and the smoke channel is formed by the smoke channel 500.
The outer surface of the end of the bracket 210 is provided with the gas-liquid balance groove 211, the gas-liquid balance groove 211 comprises a gas inlet 212 and at least two gas outlets 213 communicated with the gas inlet 212, and the gas inlet 212 is communicated with the gas outlets 213 through bent grooves.
The oil storage mechanism further comprises a first sealing element 230, the first sealing element 230 is a sealing component with openings at two ends, the first sealing element 230 is sleeved on the outer surface of the end portion of the bracket 210, the first sealing element 230 is located between the outer surface of the end portion of the bracket 210 and the inner surface of the oil outlet, the outer surface of the end portion of the bracket 210 and the inner surface of the oil outlet are in liquid-tight fit through the first sealing element 230, the first sealing element 230 covers the gas-liquid balance groove 211, and the lower end of the air inlet 212 extends out of the lower edge of the first sealing element 230, so that air can enter conveniently.
The first sealing element 230 has another structure, specifically: the first sealing member 230 is made of flexible material, said first sealing member 230 is provided with a pre-cut opening or a score line, said first sealing member 230 seals said oil outlet, when said bracket 210 is not assembled with said first sealing member 230, said pre-cut opening or score line is in a closed state, preventing the leakage of the tobacco tar; when the bracket 210 and the first sealing member 230 are assembled together, the bracket 210 pushes away the pre-cut opening or score line to form a through hole, so that the tobacco tar in the oil cavity flows to the atomization mechanism, the first sealing member 230 is located between the outer surface of the end portion of the bracket 210 and the inner surface of the oil outlet, the outer surface of the end portion of the bracket 210 and the inner surface of the oil outlet are in liquid-tight fit through the first sealing member 230, the first sealing member 230 covers the gas-liquid balance groove 211, and the lower end of the gas inlet 212 extends out of the lower edge of the first sealing member 230, so that air can enter conveniently.
Atomizing mechanism includes bottom 310, atomizing core 220, heating element, bottom 310 with nozzle shell 110 links to each other, bottom 310 with the inside formation inner chamber of nozzle shell 110, atomizing core 220 with heating element is located the inner chamber, atomizing core 220 install in support 210 below, the tobacco tar warp in the oil storage cup 120 support 210 flow direction atomizing core 220, heating element is used for right the tobacco tar that atomizing core 220 leaked heats the atomizing, bottom 310 is equipped with inlet port 311.
The heating assembly comprises an atomizing core heating element 221 and an electrode needle 320, the atomizing core heating element 221 is located below the atomizing core 220, the top end face of the electrode needle 320 is in point contact with an electrode point on the atomizing core heating element 221, and the electrode needle 320 is installed on the bottom cover 310.
The atomization mechanism further comprises a second sealing member 240, and the atomization core 220 and the bracket 210 are sealed through the second sealing member 240, so that the smoke oil is prevented from leaking from the bracket 210.
The atomizing mechanism further includes a sealing ring 330, an end of the bottom cover 310 extends into the nozzle housing 110, and the sealing ring 330 is located between an outer surface of the end of the bottom cover 310 and an inner wall of the nozzle housing 110.
The bottom cover 310 is coupled to the nozzle housing 110 by a snap.
During the use, the tobacco tar in the oil storage cup 120 flows to the atomizing core 220, the tobacco tar fully contacts with the atomizing core 220, the oil is stored through the tiny inner hole of the atomizing core 220 itself, lead the oil to the atomizing core heating element 221 on the surface of the atomizing core 220, smoke is generated by adding the oil through the atomizing core heating element 221, the outside air smoothly enters through the air inlet hole 311 to drive the atomized smoke to enter the smoke channel 500, and then enters the mouth of a consumer from the smoke outlet hole 112, meanwhile, the gas-liquid balance groove 211 works synchronously to ensure that the outside air can enter the oil storage cup 120 in real time, the tobacco tar can be stably led to the atomizing core heating element 221 through the atomizing core 220, perfect gas-liquid balance is realized, the consumer is ensured to continuously and stably experience the smoking pleasure, and the consumption purpose is realized.
The utility model has the following beneficial effects: according to the utility model, the first sealing element 230 ensures that the tobacco tar in the oil storage cup 120 is well sealed and does not leak oil for a long time, and simultaneously ensures that the external air can smoothly enter the oil storage cup 120 through the gas-liquid balance groove 211 in the practical process of the electronic cigarette atomizer, so that good gas-liquid balance is realized, the tobacco tar can stably flow to the surface of the atomizing core 220 in real time, stable smoke amount is provided for consumers, and the smoking experience of the consumers is obviously improved.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.

Claims (10)

1. The utility model provides a realize oil storage mechanism of gas-liquid exchange which characterized in that: including nozzle shell (110), support (210), the inside oil pocket that is equipped with the flue and is used for saving the tobacco tar of nozzle shell (110), the oil pocket is equipped with the oil-out, support (210) tip stretches into in the oil-out, support (210) tip surface with oil-out internal surface is the liquid seal cooperation, nozzle shell (110) top is equipped with smoke outlet (112), the flue with smoke outlet (112) intercommunication, support (210) are equipped with gas-liquid balance groove (211), and the air warp gas-liquid balance groove (211) get into in the oil pocket.
2. The oil storage mechanism according to claim 1, characterized in that: the outer surface of the end part of the support (210) is provided with the gas-liquid balance groove (211), the gas-liquid balance groove (211) comprises a gas inlet (212) and at least two gas outlets (213) communicated with the gas inlet (212), and the gas inlet (212) is communicated with the gas outlets (213) through bent grooves.
3. The oil storage mechanism according to claim 1, characterized in that: the oil storage mechanism further comprises a first sealing element (230), the first sealing element (230) is a sealing component with openings at two ends, the first sealing element (230) is sleeved on the outer surface of the end portion of the support (210), the first sealing element (230) is located between the outer surface of the end portion of the support (210) and the inner surface of the oil outlet, the outer surface of the end portion of the support (210) is in liquid-tight fit with the inner surface of the oil outlet through the first sealing element (230), the gas-liquid balance groove (211) is provided with a gas inlet (212) and a gas outlet (213) communicated with the gas inlet (212), the first sealing element (230) covers the gas-liquid balance groove (211), and the lower end of the gas inlet (212) extends out of the lower edge of the first sealing element (230).
4. The oil storage mechanism according to claim 1, characterized in that: the oil storage mechanism further comprises a first sealing member (230), wherein the first sealing member (230) is made of flexible materials, the first sealing member (230) is provided with a pre-cut opening or a score line, the first sealing member (230) seals the oil outlet, and when the support (210) is not assembled with the first sealing member (230), the pre-cut opening or the score line is in a closed state to prevent the smoke oil from leaking; when the bracket (210) and the first sealing element (230) are assembled together, the bracket (210) pushes the precut opening or the score line away to form a through hole, so that the smoke oil in the oil cavity flows to an atomizing mechanism, the first sealing element (230) is positioned between the outer surface of the end part of the bracket (210) and the inner surface of the oil outlet, the outer surface of the end part of the bracket (210) is in liquid-tight fit with the inner surface of the oil outlet through the first sealing element (230), the gas-liquid balance groove (211) is provided with a gas inlet (212) and a gas outlet (213) communicated with the gas inlet (212), the first sealing element (230) covers the gas-liquid balance groove (211), and the lower end of the gas inlet (212) extends out of the lower edge of the first sealing element (230).
5. The oil storage mechanism according to claim 1, characterized in that: this oil storage mechanism still includes oil storage cup (120), oil storage chamber (121) inside oil storage cup (120) form the oil pocket, inside suction nozzle shell cavity (111) that is equipped with of suction nozzle shell (110), oil storage cup (120) are located in suction nozzle shell cavity (111), oil storage cup (120) surface with clearance between shell cavity (111) internal surface forms flue gas passageway (500), the flue by flue gas passageway (500) constitute.
6. An electronic smoke atomizer comprising the oil storage mechanism of any one of claims 1 to 5, wherein: this electron smog spinning disk atomiser still includes atomizing mechanism, atomizing mechanism includes bottom (310), atomizing core (220), heating element, bottom (310) with suction nozzle shell (110) link to each other, bottom (310) with the inside inner chamber that forms of suction nozzle shell (110), atomizing core (220) with heating element is located the inner chamber, atomizing core (220) install in support (210) below, the tobacco tar warp in oil storage cup (120) support (210) flow direction atomizing core (220), heating element is used for right the tobacco tar that atomizing core (220) seepage leaked heats the atomizing, bottom (310) are equipped with inlet port (311).
7. The electronic aerosolizer of claim 6, wherein: the heating assembly comprises an atomization core heating element (221) and an electrode needle (320), the atomization core heating element (221) is located below the atomization core (220), the top end face of the electrode needle (320) is in point contact with an electrode point on the atomization core heating element (221), and the electrode needle (320) is installed on the bottom cover (310).
8. The electronic aerosolizer of claim 6, wherein: the atomization mechanism further comprises a second sealing piece (240), and the atomization core (220) and the support (210) are sealed through the second sealing piece (240) to prevent the tobacco tar from leaking from the support (210).
9. The electronic aerosolizer of claim 6, wherein: the atomizing mechanism further comprises a sealing ring (330), the end part of the bottom cover (310) extends into the interior of the suction nozzle shell (110), and the sealing ring (330) is positioned between the outer surface of the end part of the bottom cover (310) and the inner wall of the suction nozzle shell (110).
10. The electronic aerosolizer of claim 6, wherein: the bottom cover (310) is connected with the suction nozzle shell (110) through a buckle.
CN202122520227.7U 2021-10-19 2021-10-19 Realize gas-liquid exchange's oil storage mechanism and electron smog spinning disk atomiser Active CN216165189U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122520227.7U CN216165189U (en) 2021-10-19 2021-10-19 Realize gas-liquid exchange's oil storage mechanism and electron smog spinning disk atomiser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122520227.7U CN216165189U (en) 2021-10-19 2021-10-19 Realize gas-liquid exchange's oil storage mechanism and electron smog spinning disk atomiser

Publications (1)

Publication Number Publication Date
CN216165189U true CN216165189U (en) 2022-04-05

Family

ID=80884750

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122520227.7U Active CN216165189U (en) 2021-10-19 2021-10-19 Realize gas-liquid exchange's oil storage mechanism and electron smog spinning disk atomiser

Country Status (1)

Country Link
CN (1) CN216165189U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024051168A1 (en) * 2022-09-07 2024-03-14 爱奇迹(香港)有限公司 Atomization assembly and atomization device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024051168A1 (en) * 2022-09-07 2024-03-14 爱奇迹(香港)有限公司 Atomization assembly and atomization device

Similar Documents

Publication Publication Date Title
US10631576B1 (en) Atomizing device and electronic cigarette having the same
CN106820269B (en) Electronic cigarette atomizer
CN109195461B (en) Heating device, atomizer and electronic cigarette
CN215013576U (en) Atomizer and aerosol generating device
WO2023065470A1 (en) Atomization component and electronic atomizer
CN216165189U (en) Realize gas-liquid exchange's oil storage mechanism and electron smog spinning disk atomiser
CN216961503U (en) Atomizing device and electron cigarette that has it
CN109619707A (en) Oil-leakage-prevention is atomized suction unit
CN211153798U (en) Atomizing device and electron cigarette
CN210017886U (en) Atomizing device and be equipped with its electron cigarette
CN210076581U (en) Leak protection oil atomizing suction device
CN219125368U (en) Atomizing device and electronic cigarette
CN217117523U (en) A electron cigarette that is used for atomizing device of electron cigarette and has it
CN215873478U (en) Atomizing mechanism of electronic cigarette atomizer and electronic cigarette atomizer
CN216821767U (en) Suction nozzle of electronic cigarette atomizer and electronic cigarette atomizer
CN217089592U (en) Gas-liquid exchange valve of oil storage mechanism, oil storage mechanism and electronic cigarette atomizer
CN210782928U (en) Electronic cigarette
CN113455713A (en) Atomizing device capable of supplementing air and electronic cigarette
CN209825216U (en) Electron cigarette body and electron cigarette
CN210695950U (en) Cigarette bullet and have electron cigarette of this cigarette bullet
CN215684858U (en) Oil storage mechanism and electron smog spinning disk atomiser with gas-liquid balance valve hole
CN215873475U (en) Oil storage mechanism of electronic cigarette atomizer
CN217906277U (en) Electronic atomizer, cartridge and ventilation assembly
CN210275883U (en) Novel integral type electronic cigarette
CN210299475U (en) Atomizing device and be equipped with its electron cigarette

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant