A cooling fan

Abstract

The cooling fan provided by the present invention comprises: a bracket and a shell, the shell is detachably connected to the bracket, and a space for installing a wet curtain is formed between the bracket and the shell; a switch, including at least one safety switch, the safety switch is arranged on the bracket; a trigger part is arranged on the shell, and contacts and triggers the safety switch; a safety member is arranged on the bracket or the shell, and the safety member has a first state of blocking the triggering of the safety switch, and a second state of exposing the safety switch. At least one safety switch is blocked and triggered by the safety member, and the fan can only be used normally when the safety switch is in a closed state. Therefore, when the wet curtain is not installed, the safety switch is in a state of being blocked and triggered by the safety member, and cannot be triggered to close, resulting in the fan being unable to work, thereby reminding the user to install the wet curtain.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a cooling fan. Background Art

[0002] A tower cooling fan is a household appliance that can deliver relatively low-temperature cold air to the surrounding environment. The working principle of a tower cooling fan is that, based on the existing tower fan, a wet curtain is installed inside the fan. The wet curtain is located between the air inlet and the wind wheel of the cooling fan. A water separation box is arranged above the wet curtain. The bottom of the water separation box has a water outlet, and water is delivered to the wet curtain from the water outlet.

[0003] During the blowing process, the evaporation of water on the wet curtain absorbs heat, reducing the temperature of the wind entering from the air inlet to achieve the purpose of blowing cold air.

[0004] However, since the wet curtain is an additional functional component, when the user disassembles it for maintenance, even if the user forgets to install the wet curtain, the fan wheel of the cooling fan can still work and send air to the surrounding environment. However, after the wet curtain is removed, the water distribution box still supplies water to the original position of the wet curtain, resulting in no parts in the cooling fan that can absorb water. The dripping water splashes in the cooling fan, causing electrical safety hazards. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the wet curtain is easily missed during the process of the user disassembling and then installing the cooling fan, thereby providing a cooling fan.

[0006] The present invention provides a cooling fan, comprising:

[0007] A bracket and a shell, wherein the shell is detachably connected to the bracket, and a space for installing a wet curtain is formed between the bracket and the shell;

[0008] A switch, including at least one safety switch, wherein the safety switch is arranged on the bracket;

[0009] The trigger part is arranged on the shell, and contacts and triggers the safety switch; the safety piece is arranged on the bracket or the shell, and the safety piece has a first state of blocking the triggering of the safety switch, and a second state of exposing the safety switch.

[0010] The safety element comprises:

[0011] The rotating shaft is rotatably connected to the bracket.

[0012] Also includes:

[0013] An elastic member connects the rotating shaft and the bracket, and when the safety member is in the second state, the elastic member is in a deformed state.

[0014] The elastic member is a torsion spring.

[0015] The safety element also includes:

[0016] The first blocking portion is disposed on the rotating shaft and extends between the safety switch and the trigger portion.

[0017] The safety element also includes:

[0018] The second blocking portion is arranged on the rotating shaft and extends to the installation path of the wet curtain.

[0019] The bracket is provided with a switch slot, the safety switch is arranged in the switch slot, and the switch slot has at least one opening for the trigger part to enter.

[0020] The first blocking portion is a plate, and when the safety member is in the first state, the first blocking portion blocks the opening of the switch slot.

[0021] The technical solution of the present invention has the following advantages:

[0022] 1. The cooling fan provided by the present invention comprises: a bracket and a shell, the shell being detachably connected to the bracket, and a space for installing a wet curtain is formed between the bracket and the shell; a switch, comprising at least one safety switch, the safety switch being arranged on the bracket; a triggering part, being arranged on the shell, contacting and triggering the safety switch; a safety member, being arranged on the bracket or the shell, the safety member having a first state of blocking the triggering of the safety switch, and a second state of exposing the safety switch.

[0023] In this solution, at least one safety switch is blocked and triggered by the safety component, and the fan can only be used normally when the safety switch is in the closed state. Therefore, when the wet curtain is not installed, the safety switch is blocked and triggered by the safety component and cannot be closed, causing the fan to fail to work, thereby reminding the user to install the wet curtain. When installing the wet curtain, the user adjusts the position of the safety component so that the safety component is in the second state where the safety switch is exposed, thereby triggering the safety switch to enable the fan to work normally.

[0024] 2. In the cooling fan provided by the present invention, the safety component comprises: a rotating shaft rotatably connected to the bracket.

[0025] The safety member is rotatably connected to the bracket, so that the safety member can be switched between the first state and the second state by rotating.

[0026] 3. The cooling fan provided by the present invention further includes: an elastic member connecting the rotating shaft and the bracket, and when the safety member is in the second state, the elastic member is in a deformed state.

[0027] The elastic member acts on the safety member through its own elasticity, so that after the wet curtain is removed, the safety member is in the first state of blocking the triggering of the safety switch. When the wet curtain is installed, the safety member is driven to rotate under the action of external force, causing the elastic member to further deform, and at the same time the safety member exposes the safety switch.

[0028] 4. In the cooling fan provided by the present invention, the elastic member is a torsion spring.

[0029] The safety element rotates during the switching process between the first state and the second state, so the torsion spring is more suitable for the use environment of the safety element.

[0030] 5. In the cooling fan provided by the present invention, the safety member further comprises: a first blocking portion, which is arranged on the rotating shaft and extends between the safety switch and the trigger portion.

[0031] The first blocking portion blocks the trigger between the safety switch and the trigger portion. When the wet curtain is not installed, the trigger portion is blocked by the first blocking portion, resulting in the inability to further install the shell. At the same time, the safety switch cannot be triggered, that is, the next step of installation cannot be carried out, and the cold fan cannot work, thereby reminding the user to install the wet curtain.

[0032] 6. In the cooling fan provided by the present invention, the safety member further comprises: a second blocking portion, which is arranged on the rotating shaft and extends to the installation path of the wet curtain.

[0033] When installing the wet curtain, the installation of the wet curtain is blocked by the second blocking part. The wet curtain is installed continuously, so that the wet curtain pushes the second blocking part to move under the action of external force, so that the second blocking part drives the rotating shaft to rotate, so that the first blocking part changes from blocking the triggering safety switch to exposing the safety switch. After the wet curtain is installed, the trigger part on the housing can trigger the safety switch, so that the housing can be installed in place.

[0034] 7. In the cooling fan provided by the present invention, a switch slot is provided on the bracket, the safety switch is arranged in the switch slot, and the switch slot has at least one opening for the trigger part to enter.

[0035] The switch slot is for the trigger part to be inserted. When the housing is installed on the bracket, the trigger part is inserted into the switch slot and triggers the safety switch. This makes it impossible for the user to complete the installation of the housing without installing the wet curtain, thereby reminding the user to install the wet curtain.

[0036] 8. In the cooling fan provided by the present invention, the first blocking portion is a plate, and when the safety member is in the first state, the first blocking portion blocks the opening of the switch slot.

[0037] Since the first blocking portion serves to block the trigger portion, when the first blocking portion is supported on the opening of the switch slot and is pressed by the supporting portion, it can have stronger mechanical strength, thereby preventing the resistance portion from crushing the first blocking portion when the user installs the housing with force. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic diagram showing the installation position of the safety element of the present invention;

[0040] Figure 2 It is a schematic diagram of the safety element structure of the present invention;

[0041] Figure 3 for Figure 1 I in the middle shows an enlarged view of the safety component installation structure;

[0042] Figure 4 A schematic diagram showing another embodiment of the housing;

[0043] Figure 5 for Figure 4 II in the middle is an enlarged view of the safety component connection structure.

[0044] Description of reference numerals:

[0045] 1. Bracket; 11. Safety switch; 12. Switch slot; 2. Housing; 21. Trigger part; 22. First split body; 23. Second split body; 231. Connecting part; 3. Safety piece; 31. First blocking part; 32. Second blocking part; 33. Rotating shaft; 34. Torsion spring. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] Example 1

[0051] This embodiment provides a cooling fan, such as Figure 1 , Figure 3 As shown, it includes: a bracket 1 and a shell 2, the shell 2 is detachably connected to the bracket 1, and a space for installing a wet curtain is formed between the bracket 1 and the shell 2; a switch, including at least one safety switch 11, the safety switch 11 is arranged on the bracket 1; a trigger part 21 is arranged on the shell 2, and contacts and triggers the safety switch 11; a safety member 3 is arranged on the bracket 1, and the safety member 3 has a first state of blocking the triggering of the safety switch 11, and a second state of exposing the safety switch 11. In this solution, at least one safety switch is blocked and triggered by the safety member, and the fan can only be used normally when the safety switch is in the closed state. Therefore, when the wet curtain is not installed, the safety switch 11 is in a state of being blocked and triggered by the safety member 3, and cannot be triggered to close, resulting in the fan being unable to work, thereby reminding the user to install the wet curtain. When the user installs the wet curtain, the position of the safety member 3 is adjusted so that the safety member 3 is in the second state of exposing the safety switch 11, thereby triggering the safety switch 11 to enable the fan to work normally.

[0052] In this embodiment, Figure 4As shown, the housing 2 includes a first body 22 and a second body 23 which are arranged in a split manner. The first body 22 and the second body 23 are arranged in a vertical direction and are respectively buckled on the bracket 1. The first body 22, the second body 23, and the bracket 1 form a space for accommodating the wet curtain. Figure 4 , Figure 5 , the second split 23 is connected to the bracket 1 through the connecting portion 231. The safety member 3 is arranged on the housing 2. The triggering portion 21 is arranged on the first split 22. When the first split 22 is installed from top to bottom in the vertical direction, the triggering portion 21 is aligned with the switch slot 12 and inserted. If the wet curtain is not installed, the first blocking portion 31 blocks the opening of the switch slot 12, preventing the triggering portion 21 from being inserted into the switch slot 12. Therefore, before the wet curtain is installed, the first split 22 cannot be installed. When the wet curtain is installed, the wet curtain is inserted from top to bottom in the space between the housing 2 and the bracket 1 and installed below the housing 2. The second blocking portion 32 is located on the insertion path of the wet curtain. The wet curtain contacts the second blocking portion 32 and drives the rotating shaft of the safety member 3 to rotate, so that the first blocking portion 31 rotates accordingly and leaves the opening position of the switch slot 12. At this time, when the first split 22 is installed again, there is no obstruction of the first blocking portion 31, and the triggering portion 21 can be inserted into the switch slot 12 and trigger the safety switch 11. The housing 2 can be installed completely, and the cooling fan can work normally.

[0053] There is no specific limitation on the connection method between the safety member 3 and the bracket 1. In this embodiment, Figure 2 , Figure 3 As shown, the safety member 3 includes: a rotating shaft 33, which is rotatably connected to the bracket 1. The safety member 3 is rotatably connected to the bracket 1, so that the safety member 3 switches between the first state and the second state by rotating. As an alternative embodiment, the safety member 3 is slidably connected to the bracket 1, and the safety member 3 switches between the first state and the second state by sliding.

[0054] There is no specific limitation on the reset method of the safety element 3. In this embodiment, Figure 3 As shown, it also includes: an elastic member, connecting the rotating shaft 33 and the bracket 1, and when the safety member 3 is in the second state, the elastic member is in a deformed state. The elastic member acts on the safety member 3 through its own elasticity, so that after the wet curtain is removed, the safety member 3 is in the first state of blocking the triggering of the safety switch 11. When installing the wet curtain, the safety member 3 is driven to rotate under the action of external force, so that the elastic member is further deformed, and the safety member 3 exposes the safety switch 11. As an alternative embodiment, the safety member 3 is switched between the first state and the second state by manual adjustment.

[0055] There is no specific limitation on the type of elastic member. In this embodiment, Figure 1 , Figure 3As shown, the elastic member is a torsion spring 34. The safety member 3 rotates during the switching process between the first state and the second state, so the torsion spring 34 is more suitable for the use environment of the safety member 3. As an alternative embodiment, the elastic member is an elastic object such as a spring or a disc spring, and further deforms during the switching process of the safety member 3 to the second state, so that the safety member 3 can be driven to return to the first state after the external force is removed.

[0056] There is no specific limitation on the structure of the safety element 3. In this embodiment, Figure 2 , Figure 3 As shown, the safety member 3 further includes: a first blocking portion 31, which is disposed on the rotating shaft 33 and extends between the safety switch 11 and the trigger portion 21. The first blocking portion 31 blocks the trigger between the safety switch 11 and the trigger portion 21. When the wet curtain is not installed, the trigger portion 21 is blocked by the first blocking portion 31, resulting in the inability to further install the housing 2, and the safety switch 11 cannot be triggered, that is, the next step of installation cannot be performed, and the cooling fan cannot work, thereby reminding the user to install the wet curtain.

[0057] There is no specific limitation on the structure of the safety element 3. In this embodiment, Figure 2 , Figure 3 As shown, the safety member 3 further includes: a second blocking portion 32, which is arranged on the rotating shaft 33 and extends to the installation path of the wet curtain. When installing the wet curtain, the installation of the wet curtain is hindered by the second blocking portion 32. The wet curtain is continuously installed, so that the wet curtain pushes the second blocking portion 32 to move under the action of external force, so that the second blocking portion 32 drives the rotating shaft 33 to rotate, so that the first blocking portion 31 changes from a state of blocking the triggering safety switch 11 to a state of exposing the safety switch 11. After the wet curtain is installed, the triggering portion 21 on the housing 2 can trigger the safety switch 11, so that the housing 2 can be installed in place.

[0058] There is no specific limitation on the shape of the second blocking portion 32. In this embodiment, Figure 2 As shown, the second blocking portion 32 is a rectangular plate. As an alternative embodiment, the second blocking portion 32 is a rod.

[0059] There is no specific limitation on the configuration of the safety switch 11. In this embodiment, Figure 3 As shown, the bracket 1 is provided with a switch slot 12, the safety switch 11 is arranged in the switch slot 12, and the switch slot 12 has at least one opening for the trigger part 21 to enter. The switch slot 12 is for the trigger part 21 to be inserted, and when the housing 2 is installed on the bracket 1, the trigger part 21 is inserted into the switch slot 12 and triggers the safety switch 11. The user cannot complete the installation of the housing 2 without installing the wet curtain, thereby reminding the user to install the wet curtain.

[0060] There is no specific limitation on the positional relationship between the first blocking portion 31 and the switch slot 12. Figure 3 As shown, the first blocking portion 31 is a plate, and when the safety member 3 is in the first state, the first blocking portion 31 blocks the opening of the switch slot 12. Since the first blocking portion 31 plays a role of blocking the trigger portion 21, when the first blocking portion 31 is supported on the opening of the switch slot 12 and is pressed by the supporting portion, it can have a stronger mechanical strength, thereby preventing the first blocking portion 31 from being crushed by the abutting portion when the user installs the housing with force.

[0061] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A cooling fan, characterized in that: include: A bracket (1) and a shell (2), wherein the shell (2) is detachably connected to the bracket (1), and a space for installing a wet curtain is formed between the bracket and the shell (2); A switch, comprising at least one safety switch (11), wherein the safety switch (11) is disposed on the bracket (1); A trigger portion (21) is disposed on the housing (2) and contacts and triggers the safety switch (11); A safety member (3) is disposed on the bracket (1), the safety member (3) having a first state of blocking the triggering of the safety switch (11) and a second state of exposing the safety switch (11); The safety element (3) comprises: A rotating shaft (33) rotatably connected to the bracket (1); A first blocking portion (31) is provided on the rotating shaft (33) and extends between the safety switch (11) and the trigger portion (21); A second blocking portion (32) is provided on the rotating shaft (33) and extends to the installation path of the wet curtain; The wet curtain contacts the second blocking portion (32) and drives the rotating shaft (33) of the safety element (3) to rotate, causing the first blocking portion (31) to rotate accordingly, thereby causing the first blocking portion (31) to change from a state of blocking the triggering of the safety switch (11) to a state of exposing the safety switch (11).

2. The cooling fan according to claim 1, characterized in that: Also includes: An elastic member connects the rotating shaft (33) and the bracket (1), and when the safety member (3) is in the second state, the elastic member is in a deformed state.

3. The cooling fan according to claim 2, characterized in that: The elastic member is a torsion spring (34).

4. The cooling fan according to claim 1, characterized in that: The bracket (1) is provided with a switch slot (12), the safety switch (11) is arranged in the switch slot (12), and the switch slot (12) has at least one opening for the trigger part (21) to enter.

5. The cooling fan according to claim 4, characterized in that: The first blocking portion (31) is a plate, and when the safety member is in the first state, the first blocking portion (31) blocks the opening of the switch slot (12).

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