CN115202954A - Air volume detection device for detecting unblocked or blocked air outlet path - Google Patents

Abstract

The application discloses an air volume detection device for detecting the smoothness or blockage of an air outlet path, which is positioned on the air outlet path of an electronic device and at least comprises a bearing part, a metal sensing part and a metal air plate part, wherein the metal sensing part and the metal air plate part are respectively positioned on the bearing part, and the polarities of electrodes of the metal sensing part and the metal air plate part are different.

Description

Air volume detection device for detecting unblocked or blocked air outlet path

Technical Field

The present invention relates to an air volume detecting device for detecting a clear or blocked air outlet path, and more particularly, to an air volume detecting device which can be located on an air outlet path of an electronic device and at least includes a carrying portion, a metal sensing portion and a metal wind plate portion, wherein the electrodes of the metal sensing portion and the metal wind plate portion have different polarities and are respectively positioned on the carrying portion, so that the two portions can form a short circuit or an open circuit when they are abutted or not abutted.

Background

The invention of the electronic product brings convenience to human life from a hand-by-hand smart phone to an indispensable refrigerator and a desktop computer for work use of household households, meanwhile, the high-efficiency operation of the electronic device is accompanied with heat energy overflow and dissipation, passive heat dissipation components such as a heat dissipation sheet or a heat radiator with good heat dissipation function built in the product, and active heat dissipation components such as a heat dissipation fan and the like can also contribute to discharging heat energy of an equipment system, so that the problem of poor system efficiency caused by heat accumulation is avoided.

When the machine runs, heat energy is generated, and a system cooling fan is needed to assist in discharging the heat energy, so that the heat energy is reduced from being accumulated in the machine. The system cooling fan can discharge hot air in the system to achieve the effect of cooling the temperature of the system. The system cooling fan is widely applied to electronic products such as factory building equipment, commercial buildings, data centers, computers in office environments, solar systems, dust-free room equipment, frequency converters, refrigeration or freezing equipment, baking equipment and the like, and the installation position of the system cooling fan can be arranged in the system or at the side edge of the system. On the air outlet path of the system heat dissipation fan, a dust screen or an air hole is often arranged to prevent dust entering the equipment or dust from attaching to the fan blades to affect the heat dissipation capability.

However, the aerosol is carried in by the activity of people and the indoor and outdoor air circulation, and after the accumulation of the aerosol in the day and the month, dust is formed to cover the surface of the object, and the dust screen or the wind holes on the wind outlet path are difficult to survive the dust accumulation. Moreover, some electronic products are disposed in remote areas, mountainous areas or maintenance personnel cannot frequently check the dirt degree of the dust screen, or the ventilation holes of the electronic products are not kept smooth, so that the products are overheated in operation, the product performance is affected, the service life is shortened, the stability is reduced or the system is crashed. In the prior art, whether the air outlet path of the electronic product is kept smooth cannot be known, and the problems of overhigh internal temperature of a product system cannot be solved except that maintenance personnel cannot be reminded to carry out condition elimination. Therefore, how to effectively solve the above problems and detect the air outlet path being unblocked or blocked is an important issue of the present application.

Disclosure of Invention

In view of the fact that the prior art cannot know whether the air outlet path of the electronic product is kept smooth, after repeated research and tests by the inventor, the air volume detection device for detecting the smoothness or blockage of the air outlet path is developed, and the conventional problems can be effectively solved by means of the appearance of the air volume detection device.

In order to solve the above technical problems, one of the technical solutions adopted in the present application is to provide an air volume detecting device for detecting the unblocked or blocked air outlet path, wherein the air volume detecting device can be installed on an air outlet path of an electronic device, and at least includes a bearing portion, a metal sensing portion and a metal air plate portion; the metal sensing part is arranged on the bearing part and has a first electrode polarity; the metal wind plate part is arranged on the bearing part and has a second electrode polarity; the metal wind plate part can abut against the metal sensing part to form a short circuit state under the condition that the air volume on the air outlet path meets a first condition, and the metal wind plate part cannot abut against the metal sensing part to form an open circuit state under the condition that the air volume on the air outlet path meets a second condition. Therefore, the device can be used for detecting the unblocked or blocked air outlet path, and also can be applied to the people who are difficult for maintainers in remote areas, mountainous areas and the like to frequently inspect the states of the dust screen and the air holes, or can assist in paying attention to the situation that the air holes are not kept unblocked, so as to avoid the influence on the product performance, the stability or the crash caused by the overheated operation of the product due to the dirty dust screen or the shielding of the air holes.

Optionally, the first condition is that the air volume of the air outlet path is greater than a threshold, and the second condition is that the air volume of the air outlet path is less than the threshold.

Optionally, the first condition is that the air volume of the air outlet path is smaller than a threshold, and the second condition is that the air volume of the air outlet path is larger than the threshold.

Optionally, the carrying part is provided with a cavity, a part of the metal sensing part can be accommodated in the cavity, and the top end of the metal sensing part can be exposed out of the top surface of the carrying part.

Optionally, the carrying part includes a first body and a second body; the first body is provided with the cavity and a first clamping unit, wherein part of the metal sensing part can be accommodated in the cavity, and the top end of the metal sensing part can be exposed out of the first body; the second body is provided with a second embedding unit, the second embedding unit can be combined with the first embedding unit, and part of the metal wind plate part can be clamped between the second body and the first body.

Optionally, the metal wind plate portion is provided with a wind plate embedding unit, the wind plate embedding unit can be combined with the first embedding unit, so that the metal wind plate portion can be fixed to the first body, the top end of the metal wind plate portion can be exposed out of the first body, the second embedding unit can also be combined with the first embedding unit and the wind plate embedding unit, so that the metal wind plate portion is clamped between the second body and the first body.

Optionally, the metal wind plate portion at least comprises a wind receiving unit and a deformation unit, the wind receiving unit is connected with the deformation unit, and can apply a bending acting force to the deformation unit due to bearing of wind volume.

Optionally, the metal wind plate portion at least comprises a wind receiving unit and a base unit, the wind receiving unit is connected with the base unit and can be directly or indirectly pivoted to the bearing portion, and the wind receiving unit can rotate due to bearing wind volume.

Optionally, the base unit includes a rotating shaft and a positioning member, the bottom surface of the positioning member is attached to the top surface of the bearing portion, a wind plate pin is arranged on the front side of the positioning member, the rear side of the positioning member can be connected with the rotating shaft, and the wind receiving unit is pivoted to the rotating shaft so as to be indirectly pivoted to the bearing portion.

Optionally, the bearing portion includes a first body and a second body, and the metal wind plate portion includes a wind receiving unit and a contact unit, the bottom of the contact unit and the bottom of the metal sensing portion are respectively disposed on two opposite sides of the first body, the top of the contact unit and the top of the metal sensing portion are respectively disposed on two opposite sides of the second body, the wind receiving unit is pivoted to the second body, and the width of the wind receiving unit is greater than the distance between the contact unit and the metal sensing portion.

For further explanation of the purpose, technical features and effects of the present application, the following detailed description is provided with reference to the accompanying drawings, which are provided for reference and illustration purposes only and are not intended to limit the present application.

Drawings

Fig. 1 is a schematic front view of an air volume detecting device according to the present application;

fig. 2 is a schematic side view of the air volume detecting device of the present application;

fig. 3 is a perspective view of an air volume detecting device according to a first embodiment of the present application;

fig. 4 is an exploded view of the air volume detecting device according to the first embodiment of the present application;

fig. 5 is a perspective side view of the metal wind plate portion of the air volume detecting device according to the first embodiment of the present application in contact with the metal sensing portion;

fig. 6 is a perspective side view of a metal wind plate portion of an air volume detecting device according to a second embodiment of the present application, the metal wind plate portion not being in contact with a metal sensing portion;

fig. 7 is a schematic perspective view of an air volume detecting device according to a third embodiment of the present application;

fig. 8 is an exploded view of an air volume detecting device according to a third embodiment of the present application;

fig. 9 is a perspective side view of the metal wind plate portion of the air volume detecting device according to the third and fourth embodiments of the present application contacting the metal sensing portion;

fig. 10 is a perspective view of an air volume detecting device according to a fifth embodiment of the present application;

fig. 11 is an exploded view of an air volume detecting device according to a fifth embodiment of the present application;

fig. 12 is a schematic perspective view of an air volume detecting device according to a seventh embodiment of the present application;

fig. 13 is an exploded view of an air volume detecting device according to a seventh embodiment of the present application; and

fig. 14 is a perspective side view of the metal wind plate portion and the metal sensing portion of the air volume detecting device according to the seventh and eighth embodiments of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, embodiments of the "air volume detecting device for detecting a clear or blocked air outlet path" disclosed in the present application are described in further detail below with reference to the accompanying drawings. The advantages and effects of the present application will be apparent to those skilled in the art from the disclosure of the present specification. The present application is capable of other and different embodiments and its several details are capable of modifications and variations in various respects, all without departing from the present application. Further, it is stated in advance that the drawings of the present application are for illustrative purposes only and are not drawn to scale, and although examples of parameters including particular values may be provided herein, it is to be understood that the parameters need not be exactly equal to the corresponding values, but may be approximated to the corresponding values within acceptable error margins or design constraints. The following embodiments will further explain the related art of the present application in detail, but the disclosure is not intended to limit the scope of the present application.

It is noted that the drawings of the present application are only for a simple schematic description and are not drawn to actual dimensions. The following embodiments will further describe the related technical content of the present application in detail, but the disclosure is not intended to limit the scope of the present application. It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms, which are used primarily to distinguish one element from another. Furthermore, directional terms, such as "left" and "right", etc., used in the following embodiments refer to directions of the drawings, and therefore, the directional terms are used for illustration and are not used to limit the scope of the present disclosure.

Please refer to fig. 1 and 2, the air volume detecting device S can be located on an air outlet path of an electronic device, for example, when a fan of a server operates to dissipate heat, the fan blows hot air in the server out of the server, the passing area of the hot air belongs to the air outlet path, and the air volume detecting device S can be located on the air outlet path, especially, when a dust screen is located in the air outlet path, the air volume detecting device S can be located at the downstream of the dust screen.

Referring to fig. 1 and 2, the air volume detecting device S at least includes a carrying portion 1, a metal sensing portion 2 and a metal wind plate portion 3, wherein the carrying portion 1 can be made of an insulating material (such as plastic); the metal sensing part 2 and the metal wind plate part 3 can be respectively arranged on the bearing part 1 and are made of conductive materials, the metal sensing part 2 has a first electrode polarity (such as a positive electrode), and the metal wind plate part 3 has a second electrode polarity (such as a negative electrode); under the condition that the air volume on the air outlet path meets a first condition, the metal air plate part 3 can abut against the metal sensing part 2 to form a short circuit state, and under the condition that the air volume on the air outlet path meets a second condition, the metal air plate part 3 cannot abut against the metal sensing part 2 (as shown in fig. 2) to form an open circuit state, so that a worker can know whether the air volume on the air outlet path meets the first condition or the second condition by only detecting the state of the air volume detection device S, such as the short circuit state or the open circuit state, and further can know whether the air outlet path is blocked by a foreign matter. In addition, the shape of the air volume detecting device S of the present application is not limited to that shown in fig. 1, and the manufacturer can adjust the appearance of each component according to the product requirement, and only the air volume detecting device S with different structures will be described below, however, as long as the air volume detecting device S has the related basic structure and function of the following embodiments, that is, the air volume detecting device S to be protected by the present application, it is well known in advance.

To describe the air volume detecting device S of the present application in detail, the component composition and the operation of the air volume detecting device S will be described below by several embodiments. Referring to fig. 3 and 4, in the first embodiment, the air volume detecting device S can include a carrying portion 1, a metal sensing portion 2 and a metal wind plate portion 3, wherein, for convenience of explaining the relative relationship between the components, the lower left of fig. 3 is taken as the front position of the following components, the upper right of fig. 3 is taken as the rear position of the following components, the upper left of fig. 3 is taken as the left position of the following components, the lower right of fig. 3 is taken as the right position of the following components, the upper side of fig. 3 is taken as the upper (top) position of the following components, and the lower side of fig. 3 is taken as the lower (bottom) position of the following components.

In the first embodiment, referring to fig. 3 and 4 again, the carrying portion 1 can be made of a plastic material and includes a first body 11 and a second body 12, wherein a cavity 110 penetrating up and down is formed at a central portion of the first body 11, a first inserting unit 111 (only the first inserting unit 111 on the right side is drawn in fig. 3 and 4) is respectively disposed on left and right sides adjacent to the rear side of the first body 11, the first inserting unit 111 is at least composed of a first inserting space 1110 and a protrusion 1111, the first inserting space 1110 can be formed by recessing a surface of the first body 11, and the protrusion 1111 is protruded from a position of the first body 11 corresponding to the first inserting space 1110, so that the protrusion 1111 can be located in the first inserting space 1110.

As shown in fig. 3 and 4, the second body 12 is provided with a second inserting unit 121 corresponding to the first inserting unit 111, wherein the second inserting unit 121 is at least composed of a bump 1211 and a through hole 1210, and each bump 1211 can extend from the front side of the second body 12 and is provided with the through hole 1210. When the first body 11 and the second body 12 are assembled, the two protrusions 1211 can respectively extend into the corresponding first inserting space 1110 until the protrusions 1111 are respectively inserted into the corresponding through holes 1210, so that the second inserting unit 121 can be stably inserted and fixed onto the first inserting unit 111. However, in other embodiments of the present application, the through hole 1210 can be replaced by a groove on the inner side of the bump 1211, and the above-described engaging effect can be achieved. In addition, the structures of the first inserting unit 111 and the second inserting unit 121 are not limited to the shapes depicted in fig. 3, and the number, the position and the combination manner thereof can be adjusted according to actual requirements, as long as both the first inserting unit 111 and the second inserting unit 121 can assemble the first body 11 and the second body 12 into the carrying part 1.

Referring to fig. 3 and 4, the metal sensing portion 2 can be made of a conductive material (e.g., copper white), in the first embodiment, the metal sensing portion 2 extends into and through the chamber 110 from top to bottom, and a part of the metal sensing portion 2 can be accommodated in the chamber 110, the top end of the metal sensing portion can be exposed out of the top surface of the first body 11, the bottom end of the metal sensing portion can be exposed out of the bottom surface of the first body 11, and can be connected to a circuit with a first electrode polarity (e.g., positive electrode), and the circuit can also be disposed on a circuit board or be in a wire form. The metal sensing part 2 can be made into a column shape, and the top end thereof can be bent toward the metal wind plate part 3 (as shown in fig. 1), but not limited thereto.

Referring to fig. 3 and 4, the metal wind plate portion 3 is located between the first body 11 and the second body 12, and can be made of a conductive material (e.g., cupronickel), in the first embodiment, the metal wind plate portion 3 includes a deformation unit 31 and a wind receiving unit 32, in the first embodiment, the deformation unit 31 is thin and elastic, and can be bent and deformed when receiving an external force, but after the external force disappears, the restoration force of the deformation unit will restore the original shape. The top end of the deformation unit 31 is provided with the wind receiving unit 32, two sides of the deformation unit 31 adjacent to the bottom end are respectively provided with a wind plate engaging unit 311, the wind plate engaging unit 311 is at least composed of a sheet body 3111 and an opening 3110, wherein each sheet body 3111 can extend forward from two sides of the deformation unit 31 and is provided with the opening 3110, when the metal wind plate portion 3 is assembled to the carrying portion 1, each sheet body 3111 can extend into the corresponding first engaging space 1110 in advance until each protruding portion 1111 passes through the corresponding opening 3110 to be positioned on the first body 11, then each bump 1211 can extend into the corresponding first engaging space 1110 and is positioned outside each sheet body 3111 until the protruding portion 1111 exposed from the opening 3110 is embedded into the corresponding through hole 1210, so that the metal wind plate portion 3113 can be stably positioned on the carrying portion 1, and the wind receiving unit 32 and at least part of the deformation unit 3111 can be exposed out of the top surface of the carrying portion 31, and the bottom end of the deformation unit 31 can be exposed out of the carrying portion 31; the bottom end of the metal wind plate part 3 can be connected with a circuit of a second electrode polarity (such as a negative electrode), and the circuit can be arranged on a circuit board or be in a wire form.

Referring to fig. 5, in the first embodiment, the metal sensing portion 2 and the metal wind plate portion 3 can be in contact with each other when they are preset in a windless condition, so as to form a short circuit state. When the air volume detecting device S is installed in the air outlet path and the air volume moves from the front side to the rear side (as indicated by the thick black arrow in fig. 5, that is, the air volume moves from the left side to the right side in fig. 5), when the current air volume on the air outlet path is greater than a threshold value, it represents that the force applied to the deforming unit 31 by the current air volume received by the air receiving unit 32 can be greater than the restoring force of the deforming unit 31 itself, and at this time, the air receiving unit 32 will move outward (i.e., toward the rear side, as indicated by the imaginary line in fig. 5) without contacting the metal sensing part 2, so as to form an open circuit state, and will simultaneously drive the deforming unit 31 to bend and deform; when the current air volume on the air outlet path is smaller than the threshold, which means that the force applied to the deformation unit 31 by the air receiving unit 32 due to the current air volume is smaller than the restoring force of the deformation unit 31 itself, the deformation unit 31 will be restored to the original position, and the air receiving unit 32 will be driven to move inward (i.e. toward the front direction) until the air receiving unit 32 contacts the metal sensing part 2 (as shown in fig. 5), so as to form a short circuit state. It is specifically mentioned that in this embodiment, the width of the deformation unit 31 can be smaller than that of the wind receiving unit 32, so as to be able to deform better, but not limited to this, in other embodiments, the width of the deformation unit 31 can also be equal to that of the wind receiving unit 32, as long as the deformation unit 31 deforms enough to be moved by the wind receiving unit 32.

In summary, the manufacturer only needs to detect the air volume generated by the electronic device under normal conditions, and then, according to the pressure generated by the air volume, manufacture the air volume detection device S, and then, only needs to determine the short circuit state or the open circuit state of the air volume detection device S. For example, in the first embodiment, when the air outlet path or the dust screen is not blocked by a foreign object or the blocking degree is not serious, the air volume thereon should be in an open circuit state, so that if the system detects that the air volume detection device S is currently in a short circuit state, it indicates that the air volume of the air outlet path becomes small and does not conform to the expected normal air volume, at this time, the system can send out a warning message to notify the operator to go to view and maintain, thus greatly improving the convenience of maintenance and reducing the burden of the operator.

In addition, in the first embodiment, the first condition that the air volume of the air-out path is smaller than a threshold is taken as a first condition for judgment, and the second condition that the air volume of the air-out path is larger than the threshold is taken as a second condition for judgment, but not limited thereto. In the second embodiment of the present application, please refer to fig. 6, when the metal sensing portion 2 and the metal wind plate portion 3 are preset to be in a windless condition, they will not contact each other, and an open circuit state is formed. When the air volume detecting device S is installed in the air outlet path and the air volume moves from the rear direction to the front direction (as indicated by the thick black arrow in fig. 6, that is, the air volume moves from the right direction to the left direction in fig. 6), when the current air volume on the air outlet path is greater than a threshold value, which means that the force applied to the deforming unit 31 by the current air volume received by the air receiving unit 32 is greater than the restoring force of the deforming unit 31 itself, the air receiving unit 32 will be displaced inward (i.e., toward the front direction, as indicated by the imaginary line in fig. 6), and will contact the metal sensing part 2 to form a short-circuit state, and will simultaneously drive the deforming unit 31 to bend and deform; moreover, when the current air volume on the air outlet path is smaller than the threshold, which means that the force applied to the deformation unit 31 by the air receiving unit 32 due to the current air volume is smaller than the restoring force of the deformation unit 31 itself, the deformation unit 31 will be restored to the original position, and drive the air receiving unit 32 to move outward (i.e. toward the rear direction), without contacting the metal sensing part 2 (as shown in fig. 6), so as to form an open circuit state. Therefore, in the second embodiment, the first condition for determining is that the air volume of the air-out path is greater than a threshold, and the second condition for determining is that the air volume of the air-out path is less than the threshold.

In addition to the air volume detecting device S of the first and second embodiments, the present application also includes other embodiments, please refer to fig. 7 and 8, in the third embodiment, the air volume detecting device S includes a carrying portion 1, a metal wind plate portion 3 and a metal sensing portion 2, wherein the carrying portion 1 can be made of plastic material, a cavity 110 penetrating up and down is disposed at the central portion of the carrying portion, a pin receiving space 10 can be concavely disposed at the front side of the carrying portion 1, and a first positioning column 13 and a second positioning column 14 are respectively disposed upward at the left and right side surfaces adjacent to the rear side of the carrying portion. In the third embodiment, the metal sensing part 2 extends into and through the chamber 110 from top to bottom, and a part of the metal sensing part 2 can be accommodated in the chamber 110, the top end of the metal sensing part 2 can be exposed out of the top surface of the supporting part 1, the bottom end of the metal sensing part 2 can be exposed out of the bottom surface of the supporting part 1, and the metal sensing part can be connected to a circuit of a first electrode polarity (e.g., a positive electrode), and the circuit can be disposed on a circuit board or be in a wire form. The metal sensing part 2 can be made into a column shape, and the top end thereof can be bent toward the left direction of the carrying part 1 (as shown in fig. 7), but not limited thereto.

Referring to fig. 7 and 8, in the third embodiment, the metal wind plate portion 3 includes a wind receiving unit 32 and a base unit 33, which can be made of conductive material, wherein the wind receiving unit 32 can be located in front of both the first positioning post 13 and the second positioning post 14, and includes a wind receiving plane 321 and a pivot plane 322, the wind receiving plane 321 can be located at the upper half of the wind receiving unit 32, and the pivot plane 322 can be located at the lower half of the wind receiving unit 32; moreover, in order to increase the wind receiving area of the wind receiving unit 32, the angle between the wind receiving plane 321 and the hinge plane 322 is less than 180 degrees and greater than or equal to the angle between the upright position of the wind receiving plane 321 and the hinge plane 322 (the upright position is a position in which the wind receiving plane 321 is orthogonal to the wind direction), so that all or most of the area of the front side or the rear side of the wind receiving plane 321 can be used as the windward side of the wind outlet path. In addition, the height of the bottom edge of the pivot plane 322 can be smaller than the height of the first positioning column 13 and the second positioning column 14, and the width of the bottom edge of the pivot plane 322 can be larger than the distance between the first positioning column 13 and the second positioning column 14, so that the backward turning angle of the wind receiving unit 32 can be limited in front of the first positioning column 13 and the second positioning column 14.

As shown in fig. 7 and 8, the base unit 33 includes a rotating shaft 331 and a positioning member 332, the rotating shaft 331 is in a cross bar shape, and the left and right ends of the rotating shaft 331 can be bent downward, and the rear side of the positioning member 332 is wound up at the left and right ends of the rotating shaft 331, so that the rotating shaft 331 can be positioned at the positioning member 332 and at the rear positions of the first positioning column 13 and the second positioning column 14. The bottom surface of the positioning member 332 is attached to the top surface of the supporting portion 1, and the front end of the positioning member is provided with a wind plate pin 3321, the wind plate pin 3321 can partially abut against the pin receiving space 10, the rear side of the positioning member 332 can be connected to the rotating shaft member 331, and the pivot plane 322 can be pivoted to the rotating shaft member 331 so as to be indirectly pivoted to the supporting portion 1. The positioning element 332 is formed with an opening 3320, the opening 3320 corresponds to the chamber 110, and the aperture thereof is larger than the cylinder width of the metal sensing part 2, so that the metal sensing part 2 does not contact the inner edge surface of the opening 3320, and the metal sensing part 2 does not form a short circuit with the positioning element 332. The rotating member 331 and the positioning member 332 of this embodiment are separate components, but not limited thereto, and the base unit 33 of other embodiments of the present application can also be a single component integrally formed. The top end of the metal wind plate portion 3 (e.g., the wind receiving unit 32) can be exposed out of the top surface of the carrying portion 1, and the bottom end of the metal wind plate portion 3 (e.g., the wind plate pin 3321) can be connected to a circuit with a second electrode polarity (e.g., a negative electrode), which can be disposed on a circuit board or in a wire form.

Referring to fig. 7 and 9, in the third embodiment, the metal sensing portion 2 and the metal wind plate portion 3 can be in contact with each other when the wind is not present, so as to form a short circuit state. When the air volume detecting device S is installed in the air-out path and the air volume moves from the front side to the rear side (i.e. the air volume moves from the lower left side of fig. 7 to the upper right side and the air volume moves from the left side of fig. 9 to the right side), when the current air volume on the air-out path is greater than a threshold value, which means that the current air volume borne by the air-receiving unit 32 will be greater than the downward gravity formed by the weight of the air-receiving unit 32, at this time, the air-receiving plane 321 can drive the bottom end of the pivot plane 322 to rotate backward due to the above-mentioned air volume, and also turns back to avoid contacting the metal sensing part 2 (as shown in fig. 7), so as to form an open circuit state; moreover, when the current air volume on the air outlet path is smaller than the threshold, it means that the current air volume borne by the air receiving unit 32 will be smaller than the downward gravity formed by the weight of the air receiving unit 32, at this time, the air receiving plane 321 will drive the bottom end of the pivot plane 322 to rotate forward and turn over itself forward (i.e. toward the direction of the metal sensing portion 2) until the air receiving unit 32 contacts the metal sensing portion 2 (as shown in fig. 9), so as to form a short circuit state.

In addition, in the third embodiment, the first condition for determining is that the air volume of the air-out path is greater than a threshold, and the second condition for determining is that the air volume of the air-out path is less than the threshold, but not limited thereto. In the fourth embodiment of the present application, please refer to fig. 7 to 9, a volute spring 35 can be disposed inside the bottom end of the wind receiving unit 32, and the elastic force of the volute spring 35 can apply an acting force to the wind receiving unit 32, so that the metal sensing portion 2 and the metal wind plate portion 3 are not in contact when they are pre-disposed in a no-wind condition, and an open circuit state is formed. When the air volume detecting device S is installed in the air-out path and the air volume moves from the rear direction to the front direction (i.e. the air volume moves from the upper right direction to the lower left direction in fig. 7 and the air volume moves from the right direction to the left direction in fig. 9), when the current air volume on the air-out path is smaller than a threshold value, which represents the elastic force applied to the air receiving unit 32 by the volute spring 35, and is smaller than the force applied to the air receiving unit 32 by the air receiving plane 321 due to the current air volume, the air receiving unit 32 can not contact with the metal sensing part 2 (as shown in fig. 7) to form the open circuit state; when the current air volume on the air outlet path is greater than the threshold value, it represents that the force applied to the air receiving unit 32 by the air receiving plane 321 receiving the current air volume is greater than the force applied to the air receiving unit 32 by the volute spring 35, and drives the air receiving unit 32 to turn toward the metal sensing part 2 until the air receiving unit 32 contacts the metal sensing part 2 (as shown in fig. 9), so as to form a short circuit state.

Referring to fig. 10 and 11, in a fifth embodiment, the air volume detecting device S can include a carrying portion 1, a metal wind plate portion 3 and a metal sensing portion 2, the carrying portion 1 can be made of a plastic material, a cavity 110 penetrating up and down is disposed at a central portion thereof, a pin receiving space 10 penetrating up and down can be disposed on a top surface of the carrying portion 1 adjacent to a front end, and the carrying portion 1 can be L-shaped, but not limited thereto. The metal sensing part 2 can be made of a conductive material, in the fifth embodiment, the metal sensing part 2 extends into and passes through the cavity 110 from top to bottom, and a part of the metal sensing part 2 can be accommodated in the cavity 110, the top end of the metal sensing part can be exposed out of the top surface of the bearing part 1, the bottom end of the metal sensing part can be exposed out of the bottom surface of the bearing part 1, and the metal sensing part 2 can be made into a column shape, and the top end of the metal sensing part can be bent towards the direction of the metal wind plate part 3 (as shown in fig. 10), but not limited thereto.

Referring to fig. 10 and 11, the metal wind plate portion 3 includes a deformation unit 31, a wind receiving unit 32 and a positioning member 332, which can be made of conductive material, wherein the deformation unit 31 is thin and elastic, and can be bent and deformed when receiving an external force, but after the external force disappears, the original shape is restored by its own restoring force. The top end of the deformation unit 31 is provided with the wind receiving unit 32, and the deformation unit 31 and the wind receiving unit 32 are exposed above the top surface of the carrying part 1; the deformation unit 31 is adjacent to the positioning member 332 downward, wherein the positioning member 332 is provided with an opening 3320, the opening 3320 corresponds to the chamber 110, and the aperture of the opening 3320 is larger than the cylinder width of the metal sensing part 2, so that the metal sensing part 2 does not contact the inner edge surface of the central region, and the metal sensing part 2 does not form a short circuit with the positioning member 332. Moreover, the front end of the positioning member 332 is provided with a wind plate pin 3321, the wind plate pin 3321 can partially abut against the pin accommodating space 10, and the bottom end of the wind plate pin 3321 can be exposed out of the bottom surface of the supporting portion 1; the positioning member 332 is chair-shaped and can be attached to the top surface and the front side surface of the rear end of the supporting portion 1. The bottom end of the metal sensing part 2 can be connected with a circuit of a first electrode polarity (such as a positive electrode), and the circuit can be arranged on a circuit board or adopts a wire form; the air plate pin 3321 can be connected to a circuit of a second electrode polarity (e.g., negative electrode), which can be disposed on a circuit board or in the form of a wire.

Referring to fig. 10 again, in the fifth embodiment, the metal sensing portion 2 and the metal wind plate portion 3 can be in contact with each other when the wind is not present, so as to form a short circuit state. When the air volume detecting device S is installed in the air outlet path and the air volume moves from the front side to the rear side (i.e. the air volume moves from the lower left side to the upper right side in fig. 10), when the current air volume on the air outlet path is greater than a threshold value, it represents that the force applied to the deforming unit 31 by the current air volume received by the air receiving unit 32 can be greater than the restoring force of the deforming unit 31 itself, and at this time, the air receiving unit 32 will move outward (i.e. toward the rear side, in the upper right side in fig. 10), without contacting the metal sensing part 2, so as to form an open circuit state, and will simultaneously drive the deforming unit 31 to bend and deform; moreover, when the current air volume on the air outlet path is smaller than the threshold, which means that the force applied to the deformation unit 31 by the air receiving unit 32 due to the current air volume is smaller than the restoring force of the deformation unit 31 itself, the deformation unit 31 will return to the original position and drive the air receiving unit 32 to move inward (i.e. toward the front side direction, the left lower side direction in fig. 10), until the air receiving unit 32 contacts the metal sensing part 2, so as to form a short circuit state, and in particular, the operation manner of the fifth embodiment on the air outlet path is the same as that of the first embodiment, so that the three-dimensional side view of the relative position of the metal sensing part 2 and the metal air plate part 3 is shown in fig. 5.

In addition, in the fifth embodiment, the first condition for determining is that the air volume of the air-out path is smaller than a threshold, and the second condition for determining is that the air volume of the air-out path is greater than the threshold, but not limited thereto. In the sixth embodiment of the present application, the operation manner of the metal sensing part 2 and the metal wind plate part 3 in the wind outlet path is the same as that of the second embodiment, and both are preset in the absence of wind and will not contact to form an open circuit state, so the three-dimensional side view of the relative position of the metal sensing part 2 and the metal wind plate part 3 is shown in fig. 6. When the air volume detecting device S is installed in the air outlet path and the air volume moves from the rear direction to the front direction (i.e. the air volume moves from the upper right direction to the lower left direction in fig. 10), when the current air volume on the air outlet path is greater than a threshold value, it represents that the force applied to the deforming unit 31 by the current air volume received by the air receiving unit 32 can be greater than the restoring force of the deforming unit 31 itself, and at this time, the air receiving unit 32 will displace inward (i.e. toward the front direction) and contact the metal sensing part 2 to form a short circuit state, and will simultaneously drive the deforming unit 31 to bend and deform; when the current air volume on the air outlet path is smaller than the threshold, which means that the force applied to the deformation unit 31 by the air receiving unit 32 due to the current air volume is smaller than the restoring force of the deformation unit 31, the deformation unit 31 will return to the original position and drive the air receiving unit 32 to move outward (i.e. toward the rear direction), without contacting the metal sensing part 2, so as to form an open circuit state. Therefore, in the sixth embodiment, the first condition for determining is that the air volume of the air-out path is greater than a threshold, and the second condition for determining is that the air volume of the air-out path is less than the threshold.

Referring to fig. 12 and 13, in a seventh embodiment, the air volume detecting device S can include a supporting portion 1, a metal sensing portion 2 and a metal wind plate portion 3, the supporting portion 1 can be made of a plastic material, and includes a first body 11 and a second body 12, the second body 11 can be used as a supporting point for the metal wind plate portion 3 to swing forward or backward, the first body 11 can be parallel to the second body 12, and the first body 11 and the second body 12 can be made into a rod shape or a bracket, but not limited thereto.

Referring to fig. 12 and 13, the metal sensing portion 2 and the metal wind plate portion 3 can be made of a conductive material, the metal wind plate portion 3 is composed of at least a wind receiving unit 32 and a contact unit 34, the wind receiving unit 32 and the contact unit 34 are independent components, the top end of the wind receiving unit 32 can be pivoted to the second body 12, the contact unit 34 and the bottom of the metal sensing portion 2 can be respectively disposed on two opposite sides of the first body 11 and penetrate through the first body 11; the contact unit 34 and the top of the metal sensing part 2 can be disposed on two opposite sides of the second body 12, respectively. The wind receiving unit 32 has a wind receiving plane 321, the wind receiving plane 321 is located outside the first body 11 and the second body 12, and can change the swing amplitude by receiving the acting force of the wind quantity on the wind receiving unit 32, and the width of the wind receiving plane 321 is greater than the distance between the contact unit 34 and the metal sensing part 2. The metal sensing part 2 can be connected with a circuit with a first electrode polarity (such as a positive electrode), and the circuit can be arranged on a circuit board or adopts a wire form; the contact unit 34 can be connected to a Circuit having a polarity of a second electrode (e.g., a negative electrode), and the Circuit can be disposed on a Circuit Board or be in the form of a wire, wherein the bottom surfaces of the metal sensing part 2 and the contact unit 34 can be fixed to an assembled Printed Circuit Board (PCBA), and can also provide a function of supporting the air volume detecting device S. Also, the metal sensing part 2 and the contact unit 34 can be made into a column shape, but not limited thereto.

Referring to fig. 12 and 14, in the seventh embodiment, when the wind receiving unit 32, the metal sensing part 2 and the contact unit 34 are determined to be in a windless condition, the wind receiving unit 32 can contact the metal sensing part 2 and the contact unit 34 (corresponding to the metal wind plate part 3 contacting the metal sensing part 2, as shown in fig. 14) at the same time to form a short circuit state. When the air volume detecting device S is installed in the air outlet path and the air volume moves from the front side direction to the rear side direction in fig. 12 and 14 (i.e. the air volume moves from the lower left side direction to the upper right side direction in fig. 12 and the air volume moves from the left side direction to the right side direction in fig. 14), when the current air volume on the air outlet path is greater than a threshold value, it means that the force applied to the air receiving unit 32 by the current air volume received by the air receiving plane 321 will be greater than the downward gravity formed by the self-weight of the air receiving unit 32, and at this time, the air receiving unit 32 will be displaced outward (i.e. toward the rear side direction) without contacting the metal sensing part 2 (as shown in fig. 12), so as to form an open circuit state; when the current air volume on the air outlet path is smaller than the threshold, it means that the current air volume borne by the air receiving plane 321 will be smaller than the downward gravity formed by the self weight of the air receiving unit 32, and at this time, the air receiving unit 32 will move inward (i.e. toward the front side direction) until the air receiving unit 32 contacts the metal sensing part 2 (as shown in fig. 14), so as to form a short circuit state.

In addition, in the seventh embodiment, the first condition for determining is that the air volume of the air-out path is smaller than a threshold, and the second condition for determining is that the air volume of the air-out path is greater than the threshold, but not limited thereto. In the eighth embodiment of the present application, please refer to fig. 12 to 14, a volute spring 35 can be disposed inside the top end of the wind receiving unit 32, and the elastic force of the volute spring 35 can apply an acting force to the wind receiving unit 32, so that the metal sensing portion 2, the wind receiving unit 32 and the contact unit 34 are not in contact with each other by default in the absence of wind, and an open circuit state is formed. When the air volume detecting device S is installed in the air outlet path and the air volume moves from the rear direction of fig. 12 and 14 to the front direction (i.e. the air volume moves from the upper right direction of fig. 12 to the lower left direction and the air volume moves from the right direction of fig. 14 to the left direction), when the current air volume on the air outlet path is greater than a threshold value, which means that the force applied to the air receiving unit 32 by the current air volume on the air receiving plane 321 is greater than the elastic force of the volute spring, the air receiving unit 32 will move inwards (i.e. to the front direction) and contact with the metal sensing part 2 and the contact unit 34 (as shown in fig. 14), so as to form a short circuit state; when the current air volume on the air outlet path is smaller than the threshold, it means that the force applied to the air receiving unit 32 by the air receiving plane 321 receiving the current air volume is smaller than the elastic force of the volute spring, so that the air receiving unit 32 moves outward (i.e. toward the rear direction) without contacting the metal sensing part 2 (as shown in fig. 12), thereby forming an open circuit state. Therefore, in the eighth embodiment, the first condition for determining is that the air volume of the air-out path is greater than a threshold, and the second condition for determining is that the air volume of the air-out path is less than the threshold.

It should be particularly mentioned that the carrying portion 1, the metal sensing portion 2 and the metal wind plate portion 3 of the present invention can be varied according to the use requirements of the actual product, for example, the metal sensing portion 2 and the metal wind plate portion 3 can be disposed on different independent components (as shown in fig. 1) or disposed on the same independent component (as shown in fig. 7), and the carrying portion 1 can be in various forms such as a Printed Circuit Board (PCBA), a chip or a case, as long as it can sufficiently carry the metal sensing portion 2 and the metal wind plate portion 3, so that the metal sensing portion 2 and the metal wind plate portion 3 can form a short Circuit state or an open Circuit state, which is the carrying portion 1 of the present invention.

In summary, the detection device of the present application can detect whether the air outlet of the cooling fan is shielded or whether the dust screen is dirty or not, thereby affecting the cooling effect thereof, and can be applied to remote areas, mountainous areas and other people who have difficulty in frequently inspecting the states of the dust screen and the air holes, or can assist in paying attention to the situation that the air holes are not kept smooth, thereby avoiding the influence on the performance, stability or crash of the product due to the overheating of the product caused by the dirty dust screen or the shielding of the air holes.

The above description is only a preferred and practical embodiment of the present application, and does not limit the scope of the claims of the present application, so that all the modifications that can be made by those skilled in the art without inventive changes in the technical content disclosed in the present application are included in the scope of the claims of the present application.

Claims (10)

1. An air volume detecting device for detecting the clear or blocked air outlet path, which can be installed on the air outlet path of an electronic device, the air volume detecting device at least comprises:

a bearing part;

the metal sensing part is arranged on the bearing part and is provided with a first electrode polarity; and

the metal wind plate part is arranged on the bearing part and has a second electrode polarity;

the metal wind plate part can abut against the metal sensing part to form a short circuit state under the condition that the air volume on the air outlet path meets a first condition, and the metal wind plate part cannot abut against the metal sensing part to form an open circuit state under the condition that the air volume on the air outlet path meets a second condition.

2. The airflow detecting device according to claim 1, wherein the first condition is that the airflow in the air-out path is greater than a threshold, and the second condition is that the airflow in the air-out path is less than the threshold.

3. The airflow rate detecting device according to claim 1, wherein the first condition is that the airflow rate of the air-out path is less than a threshold, and the second condition is that the airflow rate of the air-out path is greater than the threshold.

4. The airflow rate detecting device according to any one of claims 1 to 3, wherein the carrying portion has a cavity, a part of the metal sensing portion can be accommodated in the cavity, and a top end of the metal sensing portion can be exposed out of a top surface of the carrying portion.

5. The air volume detecting device according to claim 4, wherein the bearing portion includes:

the first body is provided with the cavity and a first clamping unit, wherein part of the metal sensing part can be accommodated in the cavity, and the top end of the metal sensing part can be exposed out of the first body; and

and the second body is provided with a second embedding and clamping unit which can be combined with the first embedding and clamping unit, and part of the metal wind plate part can be clamped between the second body and the first body.

6. The air volume detecting device according to claim 5, wherein the metal wind plate portion is provided with a wind plate engaging unit which is engageable with the first engaging unit so that the metal wind plate portion can be fixed to the first body with the top end of the metal wind plate portion exposed from the first body, and the second engaging unit is engageable with the first engaging unit and the wind plate engaging unit so that the metal wind plate portion is held between the second body and the first body.

7. The airflow detecting device according to any one of claims 1 to 3, wherein said metal wind plate portion comprises a wind receiving unit and a deforming unit, said wind receiving unit is connected to said deforming unit and is capable of exerting a bending force on said deforming unit by receiving the airflow.

8. The airflow detecting device according to any one of claims 1 to 3, wherein the metal wind plate portion at least comprises a wind receiving unit and a base unit, the wind receiving unit is connected with the base unit and can be directly or indirectly pivoted to the bearing portion, and the wind receiving unit can rotate due to the wind capacity.

9. The airflow rate detecting device according to claim 8, wherein said base unit includes a rotating shaft and a positioning member, a bottom surface of said positioning member is attached to a top surface of said carrying portion, a wind board connecting pin is disposed at a front side of said positioning member, a rear side of said positioning member is capable of being connected to said rotating shaft, and said wind receiving unit is pivoted to said rotating shaft so as to be indirectly pivoted to said carrying portion.

10. The airflow rate detecting device according to any one of claims 1 to 3, wherein the supporting portion includes a first body and a second body, and the metal wind plate portion includes a wind receiving unit and a contact unit, the bottom of the contact unit and the bottom of the metal sensing portion are respectively disposed at two opposite sides of the first body, the top of the contact unit and the top of the metal sensing portion are respectively disposed at two opposite sides of the second body, the wind receiving unit is pivotally connected to the second body, and the width of the wind receiving unit is greater than the distance between the contact unit and the metal sensing portion.

Images