Float switch and mobile air conditioner
By increasing the contact area between the float housing and the float guide rod and using a hollow structure design in the float switch, the problem of inaccurate float response in portable air conditioners was solved, achieving more accurate water level protection and avoiding water overflow and electrical safety risks.
Patent Information
- Application Number
- CN202323414653.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-13
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-13
AI Technical Summary
Existing float switches in portable air conditioners are easily affected by the environment, leading to inaccurate water level protection, which may cause water leakage or electrical safety problems. This is especially true in the presence of dust and viscous liquids, where the small gap between the float and the guide rod affects the float's response delay or prevents it from responding at all.
A float switch was designed, comprising a float housing and a float housing cover. The float housing has a hollow body to increase the contact area between the float housing and the float guide rod. By setting the hollow structure and tapering design, the adhesion force between the float and the guide rod is reduced, ensuring accurate float response and avoiding water level protection delay.
It improves the response accuracy of the float switch, avoids water level protection delay or failure, prevents water overflow from portable air conditioners and electrical safety hazards, and adapts to different environmental conditions.
Smart Images
Figure CN222281854U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of float switches, in particular to a float switch and a mobile air conditioner. Background Art
[0002] Mobile air conditioners produce condensed water during the cooling process, and the machine has a water storage structure (hereinafter referred to as the chassis). In order to monitor the water level in the chassis and provide prompts and protection when the condensed water accumulates to a certain level, a water level switch component is usually installed on the chassis, such as Fig.11 There is a float on the water level switch that can move up and down. The float will float up when soaked in water. When the amount of water increases and the water level rises, the float will also rise. Fig.12 When the float position rises to the specified height, the switch gives a feedback signal. After receiving this signal, the whole machine prompts information and stops the machine to avoid excessive water level and water leakage. Fig.13 Therefore, the accuracy of the float switch is very important to the reliability of the whole machine. If the float switch has poor accuracy or is easily affected by the surrounding environment, water leakage or even electric leakage may occur, causing property or personal safety problems.
[0003] The water level switch in the prior art has the following problems: Fig.15 As shown, the condenser area of the mobile air conditioner is interconnected with the external space. During the air suction process of the external air duct, in a poor environment, dust will enter the surface of the condenser, and then enter the chassis with the condensed water, causing the water in the water receiving area to be dirty with dust and other dirt to form a turbid viscous liquid. The existing gap between the float and the switch slide is too small, which is easily affected by the mucous membrane, causing the rise of the float to be delayed with the rise of the water surface or not rise, thereby changing the force system of the float and causing the water level switch to be delayed in protection or not protect. Utility Model Content
[0004] The main purpose of the utility model is to provide a float switch and a mobile air conditioner to solve the problem of water leakage caused by easy misprotection or untimely protection in the float structure in the prior art.
[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a float switch is provided. The float switch comprises: a float device, the float device comprises a float box body and a float box cover, a hollow boss is provided in the float box body, a receiving space is provided inside the hollow boss, a bottom opening is formed on a side of the receiving space away from the float box cover, the float box cover has a closed position for closing the top opening of the float box body, and the float box cover has an open position for opening the top opening of the float box body, a first through hole communicating with the receiving space is provided at the top of the float box cover, and a float guide rod, when the float box cover is in the closed position, the float guide rod passes through the first through hole and the receiving space in sequence.
[0006] Furthermore, the top surface of the float box cover is a conical structure, and the outer diameter of the float box cover is gradually increased toward the float box body.
[0007] Furthermore, the float box body includes: a float body, the float body is an annular structure, the hollow boss is connected to the inner circle of the float body, and the outer circumference of the hollow boss and the inner circumference of the float body form a first hollow cavity, and the inner circumference of the hollow boss forms a accommodating space.
[0008] Further, the hollow boss includes: a first component segment, which is arranged along the circumference of the float guide rod; a second component segment, which is arranged along the circumference of the float guide rod, the second component segment is located above the first component segment, and the inner diameter of the second component segment is smaller than the inner diameter of the first component segment; a third component segment, the first end of the third component segment is connected to one end of the first component segment, and the second end of the third component segment is connected to one end of the second component segment, wherein a first hollow cavity is formed between the outer circumferential surface of at least one of the first component segment and the second component segment and the inner circumferential surface of the float body.
[0009] Furthermore, the float box cover includes: a box cover body, the box cover body is a conical structure, a fourth component segment is provided inside the float box cover, the fourth component segment is arranged along the circumference of the float guide rod, the first end of the fourth component segment is connected to the inner circle of the box cover body, the outer circumferential surface of the fourth component segment and the inner circumferential surface of the box cover body are arranged to form a second hollow cavity, the second hollow cavity is arranged to communicate with the first hollow cavity, and the outer circumferential surface of the second end of the fourth component segment abuts against the inner circumferential surface of the second component segment.
[0010] Further, the diameter of the float guide rod is D1, the inner diameter of the fourth component segment is D2, the inner diameter of the float body is D3, the inner diameter of the first component segment is D4, and the thickness of the float body is B1, wherein D1+0.1<D2<D1+1.5, and / or, D2+3<D3<D2+15, and / or, D3+5<D4<D3+15, and / or, 1<B1<3.
[0011] Furthermore, at least three support columns are provided at the bottom of the float box body, and the at least three support columns are arranged at intervals. The support columns are used to support the chassis, and the diameter of the support columns is D5. The height of the support columns 12 is H, 2<D5<3.5, and / or, 3.5<H.
[0012] Furthermore, the float switch also includes a folding belt, one end of the folding belt is connected to the top of the outer wall of the float box body, and the other end of the folding belt is connected to the bottom of the outer wall of the float box cover. When the float box cover is in the open position, the folding belt is in a flat state, and when the float box cover is in the closed position, the folding belt is in a folded state.
[0013] Furthermore, the folding belt is provided with a recessed portion, the thickness of the recessed portion is B2, and the thickness of the folding belt is B3, wherein 0.2<B2<1.5, and / or, B2<B3 / 2.
[0014] Furthermore, a plurality of buckles are provided inside the float box cover, the plurality of buckles protrude from the opening surface of the float box cover, and the plurality of buckles are arranged at intervals, a plurality of grooves are provided on the inner wall surface of the float box body, the plurality of grooves are arranged at intervals, and the plurality of buckles are arranged in a one-to-one manner with the plurality of grooves.
[0015] Furthermore, an induction magnet is also provided in the float box body. The induction magnet is circumferentially arranged on the outer ring of the second component segment, and the induction magnet is located on the third component segment.
[0016] Furthermore, the top surface of the float box cover has an inclination angle a, where a≥35°.
[0017] According to another aspect of the utility model, a mobile air conditioner is provided, comprising a float switch, wherein the float switch is the above-mentioned float switch.
[0018] By applying the technical solution of the utility model, a float box body of a float device is provided with a hollow boss, a accommodating space is provided inside the hollow boss, and a bottom opening is formed on a side of the accommodating space away from the float box cover, so that when the float guide rod passes through the accommodating space, a preset distance is provided between the bottom opening and the float guide rod, and the hollow boss is provided so that the distance between the inner hole of the accommodating space of the float box body and the outer axial surface of the float guide rod is increased, thereby increasing the contact area between the float box body, the float guide rod and the condensed water, weakening the large adhesive force between the float box body and the float guide rod, and making the triggering start of the float switch more accurate, thereby making the water level protection of the float switch timely and avoiding the overflow of condensed water. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0020] Figure 1 A schematic structural diagram of a first embodiment of a float switch according to the utility model is shown;
[0021] Figure 2 A schematic structural diagram of a second embodiment of a float switch according to the utility model is shown;
[0022] Figure 3 A cross-sectional structural diagram of a first embodiment of a float switch according to the utility model is shown;
[0023] Figure 4A structural schematic diagram of a first embodiment of a float device of a float switch according to the utility model is shown;
[0024] Figure 5 A structural schematic diagram of a second embodiment of a float device of a float switch according to the utility model is shown;
[0025] Figure 6 A schematic structural diagram of a third embodiment of a float device of a float switch according to the utility model is shown;
[0026] Figure 7 A structural schematic diagram of a fourth embodiment of a float device of a float switch according to the utility model is shown;
[0027] Figure 8 A cross-sectional schematic diagram of a fourth embodiment of a float device of a float switch according to the utility model is shown;
[0028] Fig. 9 Shows Figure 8 The enlarged schematic diagram of point A in the middle;
[0029] Fig.10 A structural schematic diagram of a fifth embodiment of a float device of a float switch according to the utility model is shown;
[0030] Fig.11 A schematic diagram showing the installation relationship of the main components of a mobile air conditioner in the prior art;
[0031] Fig.12 A schematic structural diagram of a first embodiment of a float switch in the prior art is shown;
[0032] Fig.13 The schematic diagram of the structure of the float switch water level detection control system in the prior art is shown;
[0033] Fig.14 A structural schematic diagram of a second embodiment of a float switch in the prior art is shown;
[0034] Fig.15 A schematic structural diagram of a third embodiment of a float switch in the prior art is shown;
[0035] Fig.16 A structural schematic diagram of a fourth embodiment of a float switch in the prior art is shown.
[0036] The above drawings include the following reference numerals:
[0037] 1. Float box;
[0038] 11. hollow boss; 111. first component segment; 112. second component segment; 113. third component segment; 114. first hollow cavity;
[0039] 12. Support column; 13. Groove; 14. Induction magnet; 15. Accommodation space; 16. Float body;
[0040] 2. float box cover; 21. first through hole; 221. fourth group segment; 23. buckle; 24. box cover body; 25. second hollow cavity;
[0041] 3. Float guide rod;
[0042] 4. Folding belt; 41. Recessed portion. DETAILED DESCRIPTION
[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0046] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.
[0047] It should be noted that the float structure in the prior art still has the following technical problems:
[0048] 1. If Fig.14 As shown, the mobile air conditioner is a movable device that can be installed and used in different places and locations. During the movement, it is very easy for the water in the chassis to ripple back and forth and stay on the top surface of the float, resulting in delayed protection or no protection of the water level switch after the force system of the float is changed.
[0049] 2. If Fig.16 As shown, the matching surfaces of the existing float and the chassis are surface-to-surface matching. After the mobile air conditioner is used in a harsh environment, when it enters the season of non-use, the water in the chassis slowly dries up, and the sticky substance will bond the float ground to the chassis plane together, resulting in the float being unable to rise in the new season of use and the water level protection failing.
[0050] For the float structure in the prior art, the force analysis is as follows:
[0051] According to the force balance relationship, in an ideal state, when water gathers on the chassis and rises with the water surface, the gravity of the float and the buoyancy of the float are in a balanced relationship, that is, F 浮子重力 =F 浮子浮力1 , F 浮子重力 =m*g is a constant, F 浮子浮力1 =ρ*g*V=ρ*g*S*H1 is a variable that changes according to the draft height H1.
[0052] 1. However, when the top of the float is flat and condensed water appears on the top of the float during the process of pushing the mobile air conditioner, the equilibrium relationship becomes: 浮子重力 +F 浮子顶部水重力 =F 浮子浮力2 , because in order to overcome F 浮子顶部水重力 , F 浮子浮力2 Need to be F 浮子浮力1 Increase to achieve balance, and because F 浮子浮力2 =ρ*g*S*H2, only H2 is a variable, and the others are constants. Therefore, a higher draft height H2 is required to effectively float the float and trigger the water level switch to start the protection signal. Therefore, at this time, H2 is greater than H1, that is: the water level protection is not timely, or even no protection, resulting in condensed water overflowing the water receiving parts.
[0053] 2. However, when the use environment is poor and dust and other foreign matter form suspended matter in the condensed water, the condensed water will have a greater viscosity. When the diameter gap between the inner hole of the float and the outer shaft surface of the guide rod is small, there will be a greater viscosity between the two, and the balance relationship becomes: 浮子重力 +F 浮子与轴的粘力 =F浮子浮力3 , because in order to overcome F 浮子与轴的粘力 , F 浮子浮力3 Need to be F 浮子浮力1 Increase to achieve balance, and because F 浮子浮力3 =ρ*g*S*H3, only H3 is a variable, and the others are constants. Therefore, a higher draft height H3 is required to effectively float the float and trigger the water level switch to start the protection signal. Therefore, at this time, H3 is greater than H1, that is: the water level protection is not timely, or even no protection, resulting in condensed water overflowing the water receiving parts.
[0054] Combination Figures 1 to 10 As shown, according to a specific embodiment of the utility model, a float switch is provided.
[0055] Specifically, Figure 1 , Figure 3 , Figure 6 , Figure 7 As shown, the float switch includes: a float device, the float device includes a float box body 1 and a float box cover 2, a hollow boss 11 is provided in the float box body 1, a receiving space 15 is provided inside the hollow boss 11, a bottom opening is formed on the side of the receiving space 15 away from the float box cover 2, the float box cover 2 has a closed position for closing the top opening of the float box body 1, and the float box cover 2 has an open position for opening the top opening of the float box body 1, a first through hole 21 communicating with the receiving space 15 is provided at the top of the float box cover 2; a float guide rod 3, when the float box cover 2 is in the closed position, the float guide rod 3 is sequentially passed through the first through hole 21 and the receiving space 15.
[0056] In this embodiment, the float box body of the float device is provided with a hollow boss 11, and a accommodating space 15 is provided inside the hollow boss 11. A bottom opening is formed on the side of the accommodating space 15 away from the float box cover 2. In this way, when the float guide rod 3 is arranged through the accommodating space 15, a preset distance is provided between the bottom opening and the float guide rod 3. In addition, the hollow boss 11 is provided so that the distance between the inner hole of the accommodating space of the float box body and the outer axial surface of the float guide rod 3 is increased, thereby increasing the contact area between the float box body, the float guide rod 3 and the condensed water, weakening the large adhesive force between the float box body 1 and the float guide rod 3, and making the triggering start of the float switch more accurate, thereby making the water level protection of the float switch timely and avoiding the overflow of condensed water.
[0057] like Figure 1 , Figure 2 , Figure 3As shown, the top surface of the float box cover 2 is a conical structure, and the outer diameter of the float box cover 2 is gradually increased toward the float box body 1. This prevents the condensed water on the chassis from splashing during the machine pushing process, and the water droplets will not stay on the top of the float box cover 2, and will not affect the gravity system of the float, which can ensure that the up and down movement of the float has a good correlation with the rise and fall of the liquid level.
[0058] like Figure 3 , Figure 4 As shown, the float box body 1 includes: a float body 16, the float body 16 is an annular structure, the hollow boss 11 is connected to the inner circle of the float body 16, and the outer circumference of the hollow boss 11 and the inner circumference of the float body 16 are surrounded by a first hollow cavity 114, and the inner circumference of the hollow boss 11 is surrounded by a receiving space 15. The provision of the first hollow cavity 114 further reduces the gravity of the float box body 1, reduces the influence of the gravity of the float device, and thus makes the water level detection of the float switch more accurate.
[0059] like Figure 3 , Figure 4 As shown, the hollow boss 11 includes: a first component segment 111, which is arranged along the circumference of the float guide rod 3; a second component segment 112, which is arranged along the circumference of the float guide rod 3, and is located above the first component segment 111, and the inner diameter of the second component segment 112 is smaller than the inner diameter of the first component segment 111; a third component segment 113, a first end of the third component segment 113 is connected to one end of the first component segment 111, and a second end of the third component segment 113 is connected to one end of the second component segment 112, wherein a first hollow cavity 114 is formed between the outer circumferential surface of at least one of the first component segment 111 and the second component segment 112 and the inner circumferential surface of the float body 16. This arrangement makes the inner circumference of the hollow boss 11 stepped, and the diameter of the inner circumference of the hollow boss 11 is increased in the direction away from the float box cover 2, so that the matching clearance between the hollow boss 11 of the float box body 1 and the float guide rod 3 is increased, and the large adhesion between the float box body 1 and the float guide rod 3 is weakened, so that the triggering and starting of the float switch is more accurate, thereby making the water level protection of the float switch timely and avoiding the overflow of condensed water.
[0060] Further, the float box cover 2 includes: a box cover body 24, the box cover body 24 is a conical structure, a fourth component segment 221 is provided inside the float box cover 2, the fourth component segment 221 is arranged along the circumference of the float guide rod 3, the first end of the fourth component segment 221 is connected to the inner circle of the box cover body 24, the outer circumference of the fourth component segment 221 and the inner circumference of the box cover body 24 are surrounded to form a second hollow cavity 25, the second hollow cavity 25 is arranged in communication with the first hollow cavity 114, and the outer circumference of the second end of the fourth component segment 221 abuts against the inner circumference of the second component segment 112. Specifically, the inner circumference of the fourth component segment 221 and the float guide rod 3 are clearance-matched, and the clearance is small, which is used to limit the float guide rod 3. The outer circumference of the fourth component segment 221 and the inner circumference of the box cover body 24 are surrounded to form a second hollow cavity 25, which reduces the gravity of the float box cover 2 and the influence of the gravity of the float device, so that the water level detection of the float switch is more accurate. In addition, the outer circumference of the second end of the fourth component segment 221 abuts against the inner circumference of the second component segment 112, so that the inner circumference of the fourth component segment 221, the inner circumference of the second component segment 112, the inner circumference of the third component segment 113 and the inner circumference of the first component segment 111 sequentially form a stepped surface, so that the diameter of the inner circumference of the hollow boss 11 is increased in the direction away from the float box cover 2, so that the matching clearance between the hollow boss 11 of the float box body 1 and the float guide rod 3 is increased, and the large adhesive force between the float box body 1 and the float guide rod 3 is weakened, so that the water level protection of the float switch is timely and the overflow of condensed water is avoided.
[0061] like Figure 5 As shown, the diameter of the float guide rod is D1, the inner diameter of the fourth component section 221 is D2, the inner diameter of the float body 16 is D3, the inner diameter of the first component section 111 is D4, and the thickness of the float body 16 is B1, wherein D1+0.1<D2<D1+1.5, D2+3<D3<D2+15, D3+5<D4<D3+15, 1<B1<3. Through the constraints of various diameters, it is ensured that the height of the water surface is always below the stepped surface, so that the inside of the float box body 1 and the float guide rod 3 are effectively prevented from being affected by the surface tension of the water, even in the state of gel water. After setting the stepped mating surface, the volume of the lower part of the float box body 1 that sinks below the water surface will become smaller, that is, the buoyancy is reduced. In order to maintain the balance between buoyancy and gravity, the float of the new utility model is designed to be hollow, with a wall thickness of 1<b1<3, which effectively reduces the gravity of the float itself and changes synchronously with the reduced buoyancy stroke to keep the balanced state of the float force unchanged.
[0062] like Figure 4 , Figure 5 , Fig.10As shown, at least three support columns 12 are provided at the bottom of the float box body 1, and the at least three support columns 12 are arranged at intervals. The support columns 12 are used to support the chassis. The diameter of the support column 12 is D5, and the height of the support column 12 is H, 2<D5<3.5, 3.5<H. In this embodiment, three support columns 12 are provided at the bottom of the float box body 1, so that the float device and the chassis are in point contact, reducing the contact area, and avoiding the situation where the float and the chassis are bonded after the turbid water dries up.
[0063] like Figure 8 As shown, the float switch also includes a folding belt 4, one end of the folding belt 4 is connected to the top of the outer wall of the float box body 1, and the other end of the folding belt 4 is connected to the bottom of the outer wall of the float box cover 2. When the float box cover 2 is in the open position, the folding belt 4 is in a flat state, and when the float box cover 2 is in the closed position, the folding belt 4 is in a folded state.
[0064] like Fig. 9 As shown, the folding belt 4 is provided with a recessed portion 41, the thickness of the recessed portion 41 is B2, and the thickness of the folding belt 4 is B3, wherein 0.2<B2<1.5, B2<B3 / 2. Folding is performed at the recessed portion 41, so that the structure is simple and convenient.
[0065] Further, a plurality of buckles 23 are provided inside the float box cover 2, the plurality of buckles 23 are provided protruding from the opening surface of the float box cover 2, and the plurality of buckles 23 are provided at intervals, the inner wall surface of the float box body 1 is provided with a plurality of grooves 13, the plurality of grooves 13 are provided at intervals, and the plurality of buckles 23 are provided in a one-to-one matching manner with the plurality of grooves 13. The float box cover 2 and the float box body 1 are conveniently connected and assembled through the buckles 23, thereby improving production efficiency.
[0066] like Figure 3 , Figure 5 As shown, the float box body 1 is also provided with an induction magnet 14, which is circumferentially arranged on the outer ring of the second component segment 112, and the induction magnet 14 is located on the third component segment 113. When the liquid level rises or falls, the float device will move with the change of the liquid level, and the induction magnet 14 will sense the movement of the float device. The function of the induction magnet 14 is that when the float device approaches or moves away from the magnet, it will change the strength of the magnetic field, thereby affecting the sensor connected to the induction magnet 14. The sensor will determine the position of the float by detecting the change of the magnetic field, thereby determining the height of the liquid level. Therefore, the role of the induction magnet 14 in the float switch is to detect and measure the liquid level by sensing the change of the position of the float.
[0067] like Figure 2As shown, the top surface of the float box cover 2 has an inclination angle a, a ≥ 35°, so as to avoid the splashing of condensed water on the chassis during the pushing of the machine, and the water droplets will not stay on the top of the float, and will not affect the gravity system of the float, which can ensure that the up and down movement of the float has a good correlation with the rise and fall of the liquid level.
[0068] According to another aspect of the utility model, a mobile air conditioner is provided, comprising a float switch, wherein the float switch is the above-mentioned float switch. The float switch comprises: a float device, wherein the float device comprises a float box body 1 and a float box cover 2, wherein a hollow boss 11 is provided in the float box body 1, wherein a receiving space 15 is provided inside the hollow boss 11, wherein a bottom opening is formed on a side of the receiving space 15 away from the float box cover 2, wherein the float box cover 2 has a closed position for closing the top opening of the float box body 1, and wherein the float box cover 2 has an open position for opening the top opening of the float box body 1, wherein a first through hole 21 communicating with the receiving space 15 is provided at the top of the float box cover 2; and a float guide rod 3, wherein when the float box cover 2 is in the closed position, the float guide rod 3 is sequentially arranged through the first through hole 21 and the receiving space 15. The float box body of the float device is provided with a hollow boss 11, and a accommodating space 15 is provided inside the hollow boss 11. A bottom opening is formed on the side of the accommodating space 15 away from the float box cover 2. In this way, when the float guide rod 3 passes through the accommodating space 15, a preset distance is provided between the bottom opening and the float guide rod 3. In addition, the hollow boss 11 is provided so that the distance between the inner hole of the accommodating space of the float box body and the outer axial surface of the float guide rod 3 is increased, thereby increasing the contact area between the float box body, the float guide rod 3 and the condensed water, weakening the large adhesive force between the float box body 1 and the float guide rod 3, and making the triggering start of the float switch more accurate, thereby making the water level protection of the float switch timely and avoiding the overflow of condensed water.
[0069] In this embodiment, the outer shape of the float box body 1 is a cylindrical shape. In other embodiments, the outer shape of the float box body 1 may also be a square shape, and the outer shape of the corresponding float box cover 2 is also set to a square cone structure.
[0070] The utility model can improve the water level control progress without increasing the number of parts and costs, avoid water leakage and electric leakage, and has the following beneficial effects:
[0071] 1. Avoid condensed water gathering on the top of the float during the process of pushing the machine, which may cause the water full protection to be delayed or not protected.
[0072] 2. Avoid using in a poor environment. When there is turbid liquid and suspended adhesive in the chassis, the surface tension between the center hole of the float and the shaft may cause the float to be blocked, resulting in a delay in the water full protection action.
[0073] 3. Avoid using in a poor environment, where there is turbid liquid and suspended adhesive in the chassis, which may cause the bottom of the float to stick to the chassis, making it impossible to perform the full water protection action.
[0074] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0075] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.
[0076] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0077] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A float switch, characterized in that: include: A float device, comprising a float box body (1) and a float box cover (2), wherein a hollow boss (11) is provided inside the float box body (1), a receiving space (15) is provided inside the hollow boss (11), a bottom opening is formed on a side of the receiving space (15) away from the float box cover (2), the float box cover (2) has a closed position for closing the top opening of the float box body (1), and an open position for opening the top opening of the float box body (1), and a first through hole (21) communicating with the receiving space (15) is provided at the top of the float box cover (2); A float guide rod (3), when the float box cover (2) is located at the closed position, the float guide rod (3) is sequentially arranged through the first through hole (21) and the accommodating space (15).
2. The float switch according to claim 1, characterized in that: The top surface of the float box cover (2) is a conical structure, and the outer diameter of the float box cover (2) is arranged to gradually increase toward the float box body (1).
3. The float switch according to claim 1 or 2, characterized in that: The float box (1) comprises: The float body (16) is an annular structure, the hollow boss (11) is connected to the inner ring of the float body (16), and the outer peripheral surface of the hollow boss (11) and the inner peripheral surface of the float body (16) are surrounded by a first hollow cavity (114), and the inner peripheral surfaces of the hollow boss (11) are surrounded by the accommodating space (15).
4. The float switch according to claim 3, characterized in that: The hollow boss (11) comprises: A first assembly section (111), wherein the first assembly section (111) is arranged along the circumference of the float guide rod (3); a second component section (112), the second component section (112) being arranged along the circumference of the float guide rod (3), the second component section (112) being located above the first component section (111), and the inner diameter of the second component section (112) being smaller than the inner diameter of the first component section (111); a third component segment (113), wherein a first end of the third component segment (113) is connected to one end of the first component segment (111), and a second end of the third component segment (113) is connected to one end of the second component segment (112), The first hollow cavity (114) is formed between the outer circumference of at least one of the first component segment (111) and the second component segment (112) and the inner circumference of the float body (16).
5. The float switch according to claim 4, characterized in that: The float box cover (2) comprises: A box cover body (24), the box cover body (24) is a conical structure, a fourth component segment (221) is provided inside the float box cover (2), the fourth component segment (221) is arranged along the circumference of the float guide rod (3), a first end of the fourth component segment (221) is connected to the inner circle of the box cover body (24), a second hollow cavity (25) is formed between the outer circumference of the fourth component segment (221) and the inner circumference of the box cover body (24), the second hollow cavity (25) is arranged to communicate with the first hollow cavity (114), and the outer circumference of the second end of the fourth component segment (221) abuts against the inner circumference of the second component segment (112).
6. The float switch according to claim 5, characterized in that: The diameter of the float guide rod is D1, the inner diameter of the fourth component segment (221) is D2, the inner diameter of the float body (16) is D3, the inner diameter of the first component segment (111) is D4, and the thickness of the float body (16) is B1, wherein D1+0.1<D2<D1+1.5, and / or, D2+3<D3<D2+15, and / or, D3+5<D4<D3+15, and / or, 1<B1<3.
7. The float switch according to claim 1, characterized in that: At least three support columns (12) are provided at the bottom of the float box body (1), and the at least three support columns (12) are arranged at intervals. The support columns (12) are used to support the chassis, and the diameter of the support columns (12) is D5. The height of the support columns (12) is H, 2<D5<3.5, and / or, 3.5<H.
8. The float switch according to claim 5, characterized in that: The float switch further comprises a folding belt (4), one end of which is connected to the top of the outer wall of the float box body (1), and the other end of which is connected to the bottom of the outer wall of the float box cover (2). When the float box cover (2) is in the open position, the folding belt (4) is in a flat state, and when the float box cover (2) is in the closed position, the folding belt (4) is in a folded state.
9. The float switch according to claim 8, characterized in that: The folding belt (4) is provided with a recessed portion (41), the thickness of the recessed portion (41) is B2, and the thickness of the folding belt (4) is B3, wherein 0.2<B2<1.5, and / or B2<B3 / 2.
10. The float switch according to claim 1, characterized in that: The float box cover (2) is provided with a plurality of buckles (23) inside, the plurality of buckles (23) are arranged protruding from the opening surface of the float box cover (2), and the plurality of buckles (23) are arranged at intervals; the inner wall surface of the float box body (1) is provided with a plurality of grooves (13), the plurality of grooves (13) are arranged at intervals, and the plurality of buckles (23) are arranged in a one-to-one matching manner with the plurality of grooves (13).
11. The float switch according to claim 4, characterized in that: An induction magnet (14) is also provided in the float box body (1). The induction magnet (14) is circumferentially arranged on the outer ring of the second component segment (112). The induction magnet (14) is located on the third component segment (113).
12. The float switch according to claim 1, characterized in that: The top surface of the float box cover (2) has an inclination angle a, where a≥35°.
13. A mobile air conditioner, comprising a float switch, characterized in that: The float switch is the float switch according to any one of claims 1 to 12.