Refrigerant sensor, outdoor unit and heating and ventilation equipment

Abstract

The utility model discloses a refrigerant sensor, an outdoor unit and heating and ventilation equipment, and relates to the technical field of sensor installation. The refrigerant sensor comprises a shell and a first magnetic part. The first magnetic part is arranged on the shell, and the refrigerant sensor is magnetically connected to a second magnetic part of the air conditioner through the first magnetic part. According to the technical scheme, through the magnetic attraction force generated between the first magnetic part and the second magnetic part in the air conditioner, the refrigerant sensor can be conveniently installed in the air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sensor installation, in particular to a refrigerant sensor, an outdoor unit and a heating and ventilation device. BACKGROUND

[0002] In an air conditioner, due to real assembly errors and design errors, there is a certain probability that the installation position of the sensor will change, and in addition, the space for installing the refrigerant sensor is relatively small, and the worker is not convenient to operate the installation tool, which will affect the assembly efficiency of the sensor.

[0003] In order to realize flexible installation of the sensor, a detachable sensor bracket, base and the like are designed, the sensor is first installed with the bracket, and then the sensor is fixed and installed in the air conditioner through the bracket. Although this method improves the flexibility of sensor installation to some extent, it needs to increase the production and assembly process of the bracket, and the indirect installation of the sensor increases the installation steps of the sensor and the bracket, which affects the overall production and assembly efficiency of the air conditioner. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a refrigerant sensor, an outdoor unit and a heating and ventilation device, which aims to solve the problem of low installation efficiency of the existing refrigerant sensor.

[0005] In a first aspect, the present application provides a refrigerant sensor for an air conditioner, comprising:

[0006] a housing; and

[0007] a first magnetic member provided on the housing, the refrigerant sensor being magnetically connected to a second magnetic member of the air conditioner through the first magnetic member.

[0008] In an embodiment, the first magnetic member is provided on the outer side of the housing.

[0009] In an embodiment, the housing comprises a front shell and a rear shell which are detachably connected, an installation groove is provided on the inner wall of the rear shell, and the first magnetic member is provided in the installation groove.

[0010] In an embodiment, the refrigerant sensor further comprises a sensor body, the front shell and the rear shell are enclosed to form an installation cavity for installing the sensor body, and the installation groove is provided on the inner wall of the rear shell forming the installation cavity.

[0011] In an embodiment, the refrigerant sensor further comprises a sensor body, the front shell and the rear shell are enclosed to form an installation cavity for installing the sensor body, and the installation groove is provided on the inner wall of the rear shell forming the installation cavity. The front shell is provided with a limiting column extending towards the rear shell, and the limiting column abuts against the first magnetic member after the front shell and the rear shell are connected.

[0012] In an embodiment, the refrigerant sensor is a refrigerant leakage sensor, the sensor body comprises a detection element, the front shell is provided with an air inlet hole communicating between the outside and the mounting cavity, and the detection element can detect the refrigerant after leakage entering the mounting cavity from the air inlet hole.

[0013] In an embodiment, the air inlet hole is arranged in a flared manner in a direction away from the rear shell.

[0014] In an embodiment, the rear shell is provided with a through hole penetrating the mounting slot, the inner side wall of the through hole is provided with a limiting protrusion, and the limiting protrusion forms a slot bottom wall of the mounting slot.

[0015] In an embodiment, the first magnetic member comprises:

[0016] a limiting portion limited between the limiting protrusion and the front shell; and

[0017] an extension portion connected to the limiting portion and extending outwardly, and the extension portion is flush with or protrudes outwardly from the outer side of the rear shell.

[0018] In an embodiment, the first magnetic member comprises an electromagnet, and the refrigerant sensor further comprises a control module electrically connected to the electromagnet, and the control module is used to control the magnetization and demagnetization of the electromagnet.

[0019] In an embodiment, the electromagnet comprises a core, a coil wound on the core, and a power supply electrically connected to the coil, and the control module is electrically connected to the power supply to control the size and direction of the output current of the power supply.

[0020] In an embodiment, the number of the first magnetic members is multiple, and the multiple first magnetic members are arranged at least on two different sides of the shell.

[0021] In an embodiment, the edge of the shell is provided with an outwardly extending connecting plate, and the connecting plate is provided with a connecting hole used for connecting the air conditioner.

[0022] Based on the refrigerant sensor of the embodiment of the present application, by arranging the first magnetic member on the shell, when the refrigerant sensor is installed, the magnetic attraction force generated between the first magnetic member and the second magnetic member in the air conditioner can be used to realize the fixed installation of the refrigerant sensor in the air conditioner. This installation method does not need to additionally arrange other connecting members, the whole installation process is convenient and fast, and when it is necessary to replace the installation position of the refrigerant sensor or to replace and maintain the refrigerant sensor itself, the refrigerant sensor can also be conveniently disassembled and reinstalled, thereby improving the installation efficiency of the refrigerant sensor in the air conditioner.

[0023] In a second aspect, the embodiments of the present application provide an outdoor unit, comprising a four-way valve and the refrigerant sensor as described above, wherein the refrigerant sensor is magnetically connected to the four-way valve.

[0024] In a third aspect, the embodiments of the present application provide a heating and ventilation device, characterized in that the outdoor unit as described above is comprised. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0026] Figure 1 FIG. 1 is a structural schematic diagram of an embodiment of the refrigerant sensor of the utility model;

[0027] Figure 2 FIG. 2 is a sectional view of FIG. 1 at A-A; Figure 1

[0028] Figure 3 FIG. 3 is a structural schematic diagram of another view of an embodiment of the refrigerant sensor of the utility model.

[0029] EXPLANATION OF DRAWINGS:

[0030] 10, refrigerant sensor; 100, shell; 110, front shell; 111, air inlet hole; 120, rear shell; 121, mounting groove; 122, through hole; 123, limiting protrusion; 130, mounting cavity; 140, connecting plate; 141, connecting hole; 200, first magnetic member; 300, detection element.

[0031] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail with reference to the drawings.

[0033] The following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0034] ​In the description of the present application, it is understood that the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, "a plurality of" means two or more, unless otherwise specified. The association relationship of the associated objects is described, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the specification of the present application is only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more associated listed items.

[0036] In an air conditioning machine, due to real assembly error and design error, there is a certain probability that the installation position of the sensor will change, and in addition, the space for installing the refrigerant sensor is relatively small, and the worker is not convenient to operate the installation tool, which will affect the assembly efficiency of the sensor.

[0037] To solve the above problems, the utility model provides a refrigerant sensor for air conditioner, aims at realizing convenient installation of refrigerant sensor and improving its installation efficiency.

[0038] Please refer to Figure 1 And Figure 2 In the present embodiment, the refrigerant sensor 10 comprises a shell 100 and a first magnetic member 200, the first magnetic member 200 is arranged on the shell 100, and the refrigerant sensor 10 is magnetically connected to the second magnetic member of the air conditioner through the first magnetic member 200.

[0039] By arranging the first magnetic member 200 on the shell 100, when the refrigerant sensor 10 is installed, the magnetic attraction force generated between the first magnetic member 200 and the second magnetic member in the air conditioner can be used to realize the fixed installation of the refrigerant sensor 10 in the air conditioner. This installation method does not need to additionally arrange other connecting members, the whole installation process is convenient and fast, and when it is necessary to replace the installation position of the refrigerant sensor 10 or to replace and maintain the refrigerant sensor 10 itself, the refrigerant sensor 10 can also be conveniently disassembled and reinstalled, improving the installation efficiency of the refrigerant sensor 10 in the air conditioner.

[0040] Specifically, in an embodiment, one of the first magnetic member 200 and the second magnetic member comprises a magnetically conductive material, and the other comprises a permanent magnet. The permanent magnet can try to attract the magnetically conductive material. By setting one of the first magnetic member 200 and the second magnetic member to comprise a magnetically conductive material and the other to comprise a permanent magnet, the first magnetic member 200 and the second magnetic member can be magnetically attracted to each other by the attraction between the permanent magnet and the magnetically conductive material, thereby achieving the connection between the refrigerant sensor 10 and the second magnetic member.

[0041] In another embodiment, the first magnetic member 200 and the second magnetic member both comprise permanent magnets, and the polarities of the adjacent ends of the first magnetic member 200 and the second magnetic member are opposite. It can be understood that when the polarities of the adjacent ends of the two permanent magnets are the same, the two permanent magnets will repel each other and move away from each other, and when the polarities of the adjacent ends of the two permanent magnets are opposite, the two permanent magnets will attract each other. By setting the first magnetic member 200 and the second magnetic member to both comprise permanent magnets and setting the polarities of the adjacent ends of the two to be opposite, the first magnetic member 200 and the second magnetic member can be magnetically attracted to each other by the attraction between the two permanent magnets with opposite polarities, thereby achieving the connection between the refrigerant sensor 10 and the second magnetic member.

[0042] Specifically, the magnetically conductive material includes but is not limited to iron, silicon steel, or nickel-iron alloy, etc.; the permanent magnet includes but is not limited to neodymium iron boron, ferrite, or aluminum-nickel-cobalt, etc.

[0043] In an embodiment, the first magnetic member 200 is arranged outside the shell 100. The arrangement of the first magnetic member 200 outside the shell 100 is not limited, for example, the first magnetic member 200 can be directly bonded to the outer surface of the shell 100; the first magnetic member 200 can also be connected by being clamped in a groove arranged on the outer surface of the shell 100; the first magnetic member 200 can also be detachably connected to the shell 100 by screw connection or other means, thereby achieving the fixed connection between the first magnetic member 200 and the shell 100 while reducing the installation difficulty and time of the first magnetic member 200.

[0044] Please refer to Figure 2 In an embodiment, the shell 100 comprises a front shell 110 and a rear shell 120 which are detachably connected, and the inner wall of the rear shell 120 is provided with a mounting groove 121, and the first magnetic member 200 is arranged in the mounting groove 121.

[0045] It can be understood that the back of the rear shell 120 opposite to the front shell 110 is a bottom surface, when installing the refrigerant sensor 10, the bottom surface is used as a connecting surface, that is, the bottom surface of the rear shell 120 is connected with the second magnetic member, and the first magnetic member 200 is arranged on the inner side wall of the rear shell 120, so that the distance between the first magnetic member 200 and the second magnetic member is reduced, the magnetic attraction between the first magnetic member 200 and the second magnetic member is strengthened, and the stability of the refrigerant sensor 10 after installation is improved. At the same time, after the first magnetic member 200 is installed in the mounting groove 121, the front shell 110 and the rear shell 120 can protect the first magnetic member 200 to a certain extent, and prevent the first magnetic member 200 from being worn. Specifically, the way in which the first magnetic member 200 is fixed in the mounting groove 121 after installation is not limited, and the first magnetic member 200 can be fixed in the mounting groove 121 by bonding or clamping. Preferably, the shape and size of the first magnetic member 200 are matched with the mounting groove 121, the first magnetic member 200 is in interference fit with the mounting groove 121, and the first magnetic member 200 is fixed in the mounting groove 121.

[0046] Further, in an embodiment, the refrigerant sensor 10 further comprises a sensor body, the front shell 110 and the rear shell 120 form a mounting cavity 130 for mounting the sensor body, and the mounting groove 121 is arranged on the inner wall of the rear shell 120 forming the mounting cavity 130.

[0047] When assembling the components of the refrigerant sensor 10, the first magnetic member 200 is first installed in the mounting groove 121, then the sensor body is placed on the first magnetic member 200, and finally the rear shell 120 and the front shell 110 are connected, so that the installation of all components is completed. Compared with separately assembling the sensor body, the sequential assembly of the first magnetic member 200 and the sensor body has little increase in assembly time, and the first magnetic member 200 is difficult to assemble in the mounting groove 121, and no additional connecting member is needed. At the same time, by arranging the mounting groove 121 on the inner wall of the rear shell 120 forming the mounting cavity 130, the first magnetic member 200 and the sensor body are arranged in layers after the front shell 110 and the rear shell 120 are connected, the sensor body limits the first magnetic member 200, and prevents the first magnetic member 200 from being separated from the mounting groove 121.

[0048] Different from the above, in an embodiment, the refrigerant sensor 10 further comprises a sensor body, the front shell 110 and the rear shell 120 enclose an installation cavity 130 for installing the sensor body, the installation cavity 130 and the installation slot 121 are arranged in a spaced manner, the front shell 110 is provided with a limiting column extending towards the rear shell 120, and the limiting column abuts against the first magnetic member 200 after the front shell 110 and the rear shell 120 are connected. That is, the area of the front shell 110 opposite to the installation slot 121 is provided with a limiting column, the limiting column points to the installation slot 121 after the front shell 110 and the rear shell 120 are connected, and the limiting column just abuts against the first magnetic member 200 when the first magnetic member 200 is installed in the installation slot 121. The limiting column limits the first magnetic member 200, further strengthens the stability of the first magnetic member 200 in the shell 100, and prevents the first magnetic member 200 from being separated from the installation slot 121.

[0049] The front shell 110 and the rear shell 120 can be detachably connected through bolt holes and then through bolts, or can be clamped by setting a first connecting column on the front shell 110 and a second connecting column on the rear shell 120, and then setting a clamping groove matched with the second connecting column at the end of the first connecting column, and inserting the second connecting column into the clamping groove.

[0050] The type of the refrigerant sensor 10 is not limited, including a refrigerant leakage sensor, a refrigerant pressure sensor, a refrigerant flow sensor, and a refrigerant temperature sensor.

[0051] Please refer to Figure 1 and Figure 2 In an embodiment, the refrigerant sensor 10 is a refrigerant leakage sensor, the sensor body comprises a detection element 300, the front shell 110 is provided with an air inlet hole 111 communicating between the outside and the installation cavity 130, and the detection element 300 can detect the refrigerant after leakage entering into the installation cavity 130 from the air inlet hole 111.

[0052] By setting the air inlet hole 111 on the front shell 110, which communicates with the outside and the installation cavity 130, the gas from the outside can enter the installation cavity 130 through the air inlet hole 111. When there is a leakage of refrigerant from the outside, i.e. through the air inlet hole 111 into the installation cavity 130, and the detection element 300 is just arranged in the installation cavity 130, the detection element 300 can detect the presence of refrigerant in the installation cavity 130, and then determine that there is a leakage of refrigerant in the air conditioner. Preferably, considering that the density of most refrigerants is greater than that of air, the installation cavity 130 is arranged at the bottom of the shell 100, i.e. so that the detection element 300 is arranged at the lower end inside the shell 100 after installation. The leaked refrigerant flows downward to the detection element 300 after entering the shell 100, improving the accuracy of detection by the detection element 300.

[0053] Further, the air inlet hole 111 is arranged in an expanding manner away from the rear shell 120. That is, the opening of the air inlet hole 111 outside the front shell 110 is larger than that inside the front shell 110. The opening outside is arranged to be larger, which can increase the air inlet area of the air inlet hole 111, facilitating the leaked refrigerant from the outside to enter the shell 100 through the air inlet hole 111. The opening inside is arranged to be smaller, which can avoid the backflow of the refrigerant in the shell 100 to the outside through the air inlet hole 111. Preferably, the number of air inlet holes 111 is set to be multiple, which can increase the total air inlet area while avoiding the setting of a single inlet hole to be too large and easily causing the backflow of the refrigerant in the shell 100 to the outside.

[0054] Please refer to Figure 2 and Figure 3 In an embodiment, the rear shell 120 is provided with a through hole 122 penetrating the installation groove 121, and the inner side wall of the through hole 122 is provided with a limiting protrusion 123, which forms the groove bottom wall of the installation groove 121.

[0055] By setting the through hole 122 through the mounting groove 121 on the rear shell 120, when the refrigerant sensor 10 is mounted on the second magnetic member of the air conditioner, the part of the rear shell 120 between the first magnetic member 200 and the second magnetic member is removed, avoiding the reduction of the magnetic attraction force between the first magnetic member and the second magnetic member due to the obstruction of the shell 100. By setting the limiting protrusion 123 on the inner side wall of the through hole 122, the limiting protrusion 123 forms the groove bottom wall of the mounting groove 121, so that the first magnetic member 200 can abut against the limiting protrusion 123 when mounted in the mounting groove 121, avoiding the first magnetic member 200 from escaping from the rear shell 120 through the through hole 122. Preferably, the number of limiting protrusions 123 is set to be multiple, and multiple limiting protrusions 123 are arranged at intervals in the circumferential direction of the through hole 122, which ensures the limiting effect on the first magnetic member 200 while reducing the total protruding area of the limiting protrusions 123.

[0056] To further enhance the magnetic attraction force between the first magnetic member 200 and the second magnetic member, in an embodiment, the first magnetic member 200 is provided with a limiting portion and an extension portion, the limiting portion is limited between the limiting protrusion 123 and the front shell 110, and the extension portion is connected to the limiting portion and extends outward, and the extension portion is flush with the outside of the rear shell 120 or protrudes from the rear shell 120. By setting the limiting portion, the fixed connection of the first magnetic member 200 on the shell 100 is ensured, and by setting the outwardly extending extension portion, the distance between the first magnetic member 200 and the second magnetic member is reduced, thereby achieving the enhancement of the magnetic attraction force between the first magnetic member 200 and the second magnetic member, i.e. improving the stability of the refrigerant sensor 10 installed in the air conditioner.

[0057] In an embodiment, the first magnetic member 200 includes an electromagnet, and the refrigerant sensor 10 further includes a control module electrically connected to the electromagnet, and the control module is used to control the magnetization and demagnetization of the electromagnet.

[0058] When the refrigerant sensor 10 has not been installed, the electromagnet is demagnetized by the control module, at this time the electromagnet as the first magnetic piece 200 does not have magnetic attraction ability, that is, it will not adsorb other magnetic conductive materials, facilitating the movement and transportation of the refrigerant sensor 10 when it is sold as a product, and can also avoid the refrigerant sensor 10 from adsorbing impurities containing magnetic conductive materials when it is exposed. When the refrigerant sensor 10 needs to be installed, the electromagnet is magnetized again by the control module, at this time the electromagnet as the first magnetic piece 200 has magnetic attraction ability, which can realize the magnetic attraction connection of the refrigerant sensor 10 and the second magnetic piece in the air conditioner. When the installed refrigerant sensor 10 needs to be disassembled, the electromagnet can be demagnetized again by the control module to release the magnetic attraction state of the refrigerant sensor 10 and the second magnetic piece, realizing the quick disassembly of the refrigerant sensor 10.

[0059] Specifically, the electromagnet includes a core, a coil wound on the core, and a power supply electrically connected to the coil, and the control module is electrically connected to the power supply for controlling the size and direction of the current output by the power supply.

[0060] It can be understood that the magnetic attraction force is proportional to the square of the current, and by controlling the size of the current output by the power supply, the size of the magnetic attraction force of the first magnetic piece 200 can be realized. When the second magnetic piece is a magnetic conductive material, the smaller the magnetic attraction force of the first magnetic piece 200, the lower the magnetic attraction strength with the second magnetic piece, when the installed refrigerant sensor 10 needs to be disassembled, the current output by the power supply can be reduced, or even the power supply can be turned off, to weaken or even release the magnetic attraction state between the first magnetic piece 200 and the second magnetic piece. When the second magnetic piece is a permanent magnet, the polarity of the first magnetic piece 200 can be changed by changing the direction of the current output by the power supply, that is, when the polarity of the adjacent end of the first magnetic piece 200 and the second magnetic piece is opposite, the magnetic attraction connection of the refrigerant sensor 10 and the second magnetic piece is realized; after changing the direction of the current output by the power supply, the polarity of the adjacent end of the first magnetic piece 200 and the second magnetic piece is opposite, the first magnetic piece 200 and the second magnetic piece change from mutual attraction to mutual repulsion, realizing the automatic disengagement of the refrigerant sensor 10.

[0061] In an embodiment, the first magnetic member 200 is provided in multiple numbers, and the multiple first magnetic members 200 are provided on at least two different sides of the shell 100. By providing the first magnetic member 200 on different sides of the shell 100, the different sides of the shell 100 provided with the first magnetic member 200 can be used as the connection surface for connecting with the second magnetic member, thereby providing more optional placement positions for the refrigerant sensor 10 during installation. For example, the back side and the lower side of the shell 100 are provided with the first magnetic member 200, and when the second magnetic member is arranged in a flat manner, the refrigerant sensor 10 can be arranged in a flat manner on the second magnetic member through the first magnetic member 200 on the back side to achieve magnetic attraction connection, or the refrigerant sensor 10 can be arranged in a vertical manner on the second magnetic member through the first magnetic member 200 on the lower side to achieve magnetic attraction connection. That is, the refrigerant sensor 10 can select a more suitable connection surface to connect with the second magnetic member according to the position and structure of the second magnetic member.

[0062] Correspondingly, multiple first magnetic members 200 can also be provided on the same side of the shell 100, and the magnetic attraction force between the first magnetic member 200 and the second magnetic member can be enhanced by increasing the number of the first magnetic member 200. Preferably, when the number of the first magnetic member 200 is one, the first magnetic member 200 is arranged close to the center of the corresponding side of the shell 100; and when the number of the first magnetic member 200 is multiple, the multiple first magnetic members 200 are uniformly arranged around the center of the corresponding side of the shell 100, so as to improve the stability of the magnetic attraction connection between the refrigerant sensor 10 and the second magnetic member.

[0063] Please refer to Figure 1 and Figure 3 In an embodiment, the edge of the shell 100 is provided with an outwardly extending connecting plate 140, and the connecting plate 140 is provided with a connecting hole 141 for connecting the air conditioner. The connecting plate 140 is in the same plane as the side of the shell 100 provided with the first magnetic member 200, and after the refrigerant sensor 10 is connected with the second magnetic member through the first magnetic member 200, the refrigerant sensor 10 can be bolted with the air conditioner through the connecting hole 141, thereby further improving the stability of the refrigerant sensor 10 during installation in the air conditioner. At this time, the first magnetic member 200 plays a role of preliminary positioning and fixing, thereby avoiding shaking and deviation of the refrigerant sensor 10 during bolt connection or other connection modes.

[0064] The present application also provides an outdoor unit, which comprises a four-way valve and the refrigerant sensor 10 as described above, and the refrigerant sensor 10 is connected with the four-way valve through magnetic attraction. Since the outdoor unit adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described herein.

[0065] The four-way valve is usually arranged in a heat pump air conditioner outdoor unit, and is mainly used for switching the flow direction of refrigerant to realize the conversion of cooling and heating modes, in the cooling mode, the four-way valve directs the refrigerant to the outdoor unit to radiate heat, and then to the indoor unit to absorb heat, to realize cooling, in the heating mode, the four-way valve switches the flow direction of the refrigerant, so that the refrigerant radiates heat in the indoor unit, and then absorbs heat in the outdoor unit, to realize heating. Therefore, it is very important to monitor the state of the refrigerant in the four-way valve, and the four-way valve is controlled by an electromagnetic coil to change the position of the valve core, so as to change the flow direction of the refrigerant, which can be magnetically attracted and adsorbed, and the above-mentioned refrigerant sensor 10 can realize convenient installation of the four-way valve, and then realize monitoring of the state of the refrigerant in the four-way valve and the refrigerant near the four-way valve. It can be understood that the refrigerant sensor 10 can also be arranged at other positions in the air conditioner where the refrigerant needs to be monitored, and the four-way valve is only used as an example in the plurality of embodiments of the outdoor unit of the utility model.

[0066] The utility model also proposes a heating and ventilation equipment, the heating and ventilation equipment includes the outdoor unit as described above. Since the heating and ventilation equipment adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0067] The same or similar reference numerals in the drawings of the embodiment correspond to the same or similar parts; in the description of the application, it should be understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the application, for those skilled in the art, the specific meanings of the above-mentioned terms can be understood according to the specific circumstances.

[0068] The above is only the preferred embodiment of the application, and does not limit the application, any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A coolant sensor for an air conditioner, characterized by comprising: include: The housing includes a detachably connected front housing and a rear housing, wherein the inner wall of the rear housing is provided with a mounting groove; and A first magnetic component is disposed in the mounting groove, and the refrigerant sensor is magnetically connected to a second magnetic component of the air conditioner through the first magnetic component. The rear shell has a through hole that passes through the mounting groove, and the inner wall of the through hole has a limiting protrusion that forms the bottom wall of the mounting groove.

2. The refrigerant sensor according to claim 1, wherein The refrigerant sensor also includes a sensor body, and the front shell and the rear shell together form a mounting cavity for mounting the sensor body. The mounting groove is provided on the inner wall of the rear shell that forms the mounting cavity.

3. The refrigerant sensor according to claim 1, wherein The refrigerant sensor also includes a sensor body. The front shell and the rear shell are enclosed to form a mounting cavity for mounting the sensor body. The mounting cavity and the mounting groove are spaced apart. The front shell is provided with a limiting post extending toward the rear shell. After the front shell and the rear shell are connected, the limiting post abuts against the first magnetic component.

4. The refrigerant sensor according to claim 2 or 3, wherein The refrigerant sensor is a refrigerant leak sensor. The sensor body includes a detection element. The front shell is provided with an air inlet that connects to the outside and the mounting cavity. The detection element can detect refrigerant leaking into the mounting cavity through the air inlet.

5. The refrigerant sensor according to claim 4, wherein The air intake is flared out in a direction away from the rear housing.

6. The refrigerant sensor of claim 1, wherein The first magnetic component includes: The limiting portion is located between the limiting protrusion and the front shell; and An extension portion connects to the limiting portion and extends outward, the extension portion being flush with or protruding from the outer side of the rear shell.

7. The refrigerant sensor according to any one of claims 1 to 3, wherein The first magnetic component includes an electromagnet, and the refrigerant sensor further includes a control module. The control module is electrically connected to the electromagnet and is used to control the magnetization and demagnetization of the electromagnet.

8. The refrigerant sensor according to claim 7, wherein The electromagnet includes an iron core, a coil wound on the iron core, and a power source electrically connected to the coil. The control module is electrically connected to the power source to control the magnitude and direction of the output current of the power source.

9. The refrigerant sensor of claim 1, wherein The number of the first magnetic elements is multiple, and the multiple first magnetic elements are disposed on at least two different sides of the housing.

10. The refrigerant sensor of claim 1, wherein The edge of the housing is provided with an outwardly extending connecting plate, and the connecting plate is provided with a connecting hole for connecting the air conditioner.

11. An outdoor unit characterized by comprising: It includes a four-way valve and a refrigerant sensor as described in any one of claims 1 to 10, wherein the refrigerant sensor is magnetically connected to the four-way valve.

12. A heating and ventilation device, characterized by Including the outdoor unit as described in claim 11.

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