Sensor assembly and refrigerator

Abstract

The utility model discloses a sensor assembly and a refrigerator. The sensor assembly comprises a connecting assembly, a locking assembly, a sensing element and a heat insulation layer. The connecting assembly comprises a flexible body and a locking matching piece arranged on the flexible body. The flexible body is used for being wound and fixed to a pipeline of the refrigeration equipment. The locking assembly comprises a trigger switch and a locking piece. The trigger switch is fixedly arranged at one end of the flexible body. When the trigger switch is in the first state, the trigger switch drives the locking piece and the locking matching piece to be locked and fixed, so that the flexible body is fixed to the locking assembly. And when the trigger switch is in a second state, the locking piece is relatively movably connected with the locking matching piece, so that the other end of the flexible body can move relative to the locking assembly. The sensing element is fixedly arranged on the flexible body through the heat insulation layer. According to the sensor assembly, the attaching and fixing effect of the sensor and the pipeline can be enhanced, and the application scene of adjustment is widened; the arrangement of the heat insulation layer is beneficial for reducing temperature interference of the pipeline to the sensor assembly.

Description

Technical Field

[0001] The present application relates to the field of sensor component manufacturing, and in particular to a sensor component and a refrigerator. Background Art

[0002] In existing heat exchange equipment such as refrigerators and air conditioners, sensors are often installed to sense the use status of the heat exchange equipment to improve the function of the heat exchange equipment. For example, a sensor component is often installed on the heat exchange pipe of the heat exchange equipment to sense the detection information of the area where the heat exchange pipe is located, such as modal test analysis, acoustic vibration coupling analysis, transfer path analysis and other NVH work.

[0003] In the related art, sensor components such as acceleration sensors are often installed on heat exchange pipes. However, since the heat exchange pipes are often affected by the temperature of the heat exchange medium, the temperature changes, which may cause detection errors in the sensor components under high or low temperature conditions or damage to the sensor components. At the same time, it is difficult to install the sensor components on the pipes stably and tightly, resulting in large detection errors of the sensor components. Summary of the invention

[0004] The present application provides a sensor assembly and a refrigerator. In the present application, the sensor assembly can adjust the size of the flexible body and the pipe to strengthen the fit and fixation effect between the sensor and the pipe; and the size can be easily adjusted by triggering a switch to broaden the application scenarios of the adjustment and adaptation. In addition, the provision of a heat insulation layer is conducive to reducing the temperature interference of the pipe on the sensor assembly and improving the working stability of the sensor assembly.

[0005] The technical solution is as follows:

[0006] According to a first aspect of an embodiment of the present application, a sensor assembly is provided, comprising: a connecting assembly, a locking assembly, a sensing element, and a heat insulation layer; wherein:

[0007] The connection assembly comprises a flexible body and a locking fitting arranged on the flexible body. The flexible body is used to be wound around and fixed on a pipeline of a refrigeration device.

[0008] The locking assembly comprises a trigger switch and a locking member which is transmission-connected with the trigger switch. The trigger switch is fixed at one end of the flexible body.

[0009] The trigger switch includes a first state and a second state. When the trigger switch is in the first state, the trigger switch drives the locking member to lock and fix with the locking fitting, so that the flexible body is fixed to the locking assembly. When the trigger switch is in the second state, the locking member and the locking fitting are relatively movable, so that the other end of the flexible body can move relative to the locking assembly. The sensing element is fixed to the flexible body through the heat insulation layer.

[0010] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0011] The flexible body can be attached to the pipe of the refrigeration equipment by using its own flexibility, which is conducive to the flexible body driving the sensor element to be fixed tightly to the pipe, improving the accuracy of pipe detection and the fixing effect. Furthermore, the size of the flexible body around the pipe can be adjusted by the cooperation of the locking fittings and the locking components, which is conducive to expanding the application scenarios of the flexible body.

[0012] The technical solution is further described below:

[0013] In one embodiment, one of the locking member and the locking member is provided with a plurality of first recesses, and the other is provided with a plurality of first protrusions, so that: when the trigger switch is in the first state, the first protrusions are engaged and fixed with the first recesses. When the trigger switch is in the second state, the trigger switch drives the first protrusions to be spaced apart from the first recesses.

[0014] In one embodiment, the trigger switch is in transmission connection with the first protrusion so that the first protrusion can be switched between the first position and the second position.

[0015] And / or, the trigger switch includes a mounting body, a rotating body and a first elastic member, and the rotating body is movably arranged on the mounting body through the first elastic member. The first convex portion is arranged at one end of the rotating body. When the trigger switch is in the first state, the other end of the rotating body is in a non-pressurized state, and the first elastic member is in an original length state, so that the first convex portion is engaged and fixed with the first concave portion. When the trigger switch is in the second state, the other end of the rotating body is in a compressed state, so that the first elastic member is in a compressed state, so that one end of the rotating body drives the first convex portion to move away from the first concave portion, and the first concave portion and the first convex portion are arranged at intervals.

[0016] In one of the embodiments, a hollow portion is provided at the other end of the flexible body, and the hollow portion is limitedly matched with one end of the flexible body so that the locking member and the locking matching member are matched in the hollow portion.

[0017] In one embodiment, the trigger switch includes an elastic sheet. One end of the elastic sheet is disposed in the hollow portion, so that when the trigger switch is in a first state, the elastic sheet presses and fixes the flexible body. When the trigger switch is in a second state, the elastic sheet is spaced apart from the flexible body.

[0018] In one embodiment, the sensor assembly further comprises a first connecting member fixed to the sensing element and a second connecting member fixed to the flexible body. The heat insulating layer is sandwiched between the first connecting member and the second connecting member. The heat insulating layer is bonded to the first connecting member and / or bonded to the second connecting member.

[0019] In one embodiment, the first connecting member and / or the second connecting member comprises polypropylene material. And / or, the first connecting member is provided with a first adhesive layer for bonding with the sensing element, and the second connecting member is provided with a second adhesive layer for bonding with the flexible body. The first adhesive layer and the second adhesive layer comprise at least one of paraffin wax and super glue.

[0020] In one embodiment, the thickness of the first connecting member and / or the second connecting member is 0.1 mm to 0.6 mm, and / or the thickness of the heat insulation layer is 0.1 mm to 0.6 mm.

[0021] In one embodiment, the flexible body is provided with a slide rail, and the slide rail extends along the length direction of the flexible body. The second connecting member is slidably disposed on the slide rail.

[0022] According to a second aspect of the present application, a refrigerator is provided, comprising a housing assembly having a cavity, a heat exchange system, and the sensor assembly in the above embodiment. The heat exchange system comprises a heat exchange power device and a heat exchange pipe, the heat exchange pipe is connected to the heat exchange power device to transfer heat to the cavity. The sensor assembly is wound around the heat exchange pipe.

[0023] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0024] The arrangement of the sensor assembly in the above embodiment is helpful to improve the installation stability and stability of the sensor assembly of the refrigerator, thereby improving the stability of the operation in the refrigerator.

[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0027] Figure 1 Schematic diagram of the structure of a refrigerator in one embodiment.

[0028] Figure 2 for Figure 1 Schematic diagram of the structure of the sensor assembly shown in.

[0029] Figure 3 for Figure 2 Schematic diagram of the structure of the first state of the trigger switch in one embodiment shown in FIG.

[0030] Figure 4 for Figure 2 Schematic diagram of the structure of the second state of the trigger switch in one embodiment shown in FIG.

[0031] Figure 5 for Figure 2 A schematic structural diagram of a trigger switch in another embodiment is shown in FIG.

[0032] Figure 6 for Figure 2 Schematic diagram of the structure of the thermal insulation layer shown in .

[0033] Figure 7 for Figure 6 A schematic structural diagram of the first connecting member and the second connecting member shown in FIG.

[0034] Figure 8 for Figure 2 A schematic structural diagram of a flexible body in an embodiment is shown in FIG. Description of the drawings:

[0036] 10. Refrigerator; 100. Sensor assembly; 110. Connecting assembly; 111. Flexible body; 1111. Slide rail; 1112. Hollow portion; 112. Locking fitting; 1121. First recess; 120. Locking assembly; 122. Trigger switch; 1221. Mounting body; 1222. Rotating body; 1223. First elastic member; 1224. Elastic sheet; 123. Locking member; 1231. First protrusion; 130. Sensor element; 140. Insulating layer; 150. First connecting member; 160. Second connecting member; 200. Shell assembly; 300. Heat exchange system; 310. Heat exchange power device; 320. Heat exchange pipeline. DETAILED DESCRIPTION

[0037] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0038] In the related technology, the sensor assembly is set on the pipeline to detect related performance. For convenience, most manufacturers use paraffin to bond the sensor assembly to the pipeline. Thanks to the high temperature and easy melting of paraffin, the sensor assembly is also easy to separate from the pipeline. However, for actual application scenarios, it is necessary to perform sensor detection on the pipeline of the running refrigerator. At this time, the refrigerant in the pipeline gradually heats up and melts the paraffin, causing the sensor assembly to fall off, thereby causing an interruption in the detection process, which is not conducive to improving the detection efficiency and detection effect.

[0039] Based on this, the present application provides a refrigerator 10, see the attached Figure 1As shown, it includes a sensor assembly 100, a housing assembly 200 with a cavity, and a heat exchange system 300 (dashed line portion). The heat exchange system 300 includes a heat exchange power device 310 and a heat exchange pipe 320. The heat exchange pipe 320 is connected to the heat exchange power device 310 to transfer heat to the cavity. The sensor assembly 100 is wound around the heat exchange pipe 320. Among them,

[0040] See attached Figure 2 As shown, the sensor assembly 100 includes a connecting assembly 110 , a locking assembly 120 , a sensing element 130 and a heat insulating layer 140 .

[0041] The locking assembly 120 includes a trigger switch 122 and a locking member 123 that is transmission-connected to the trigger switch 122. The trigger switch 122 is fixedly mounted at one end of the flexible body 111.

[0042] The trigger switch 122 includes a first state and a second state. When the trigger switch 122 is in the first state, the trigger switch 122 drives the locking member 123 to lock and fix with the locking fitting 112, so that the flexible body 111 is fixed to the locking assembly 120. When the trigger switch 122 is in the second state, the locking member 123 is relatively movable with the locking fitting 112, so that the other end of the flexible body 111 can move relative to the locking assembly 120. The sensor element 130 is fixed to the flexible body 111 through the heat insulation layer 140.

[0043] It is understandable that the flexible body 111 can be wrapped around the heat exchange pipe 320 in a compliant manner, and locked by the cooperation of the locking fitting 112 and the locking member 123, thereby improving the degree of connection between the flexible body 111 and the heat exchange pipe 320, thereby improving the degree of fit between the sensor assembly 100 and the pipe, and improving the accuracy of detection. Further, the unlocking state is achieved by triggering the switch 122, so that the flexible body 111 can be applied to heat exchange pipes 320 of different sizes. In addition, by setting the heat insulation layer 140, the heat of the heat exchange pipe 320 will not cause unstable installation and inaccurate detection to the sensor element 130, further improving the detection stability of the sensor element 130.

[0044] It should be noted that the material of the flexible body 111 can be various, such as silicone strips, plastic tapes, etc. At the same time, the shape of the flexible body 111 can be, but not limited to, a strip, a block, a ring, etc., and the former is not restricted here.

[0045] In some embodiments, the flexible body 111 is a flexible belt, so that the design is thinner and lighter, and the space occupied is reduced.

[0046] It should be noted that the locking member 112 and the locking member 123 can be fixed by snapping or meshing, etc., and no further limitation is given here.

[0047] In combination with any of the above-mentioned embodiments of the locking member 112 and the locking member 123, see the attached Figures 3 to 4 As shown, one of the locking fitting 112 and the locking member 123 is provided with a plurality of first recesses 1121, and the other is provided with a plurality of first protrusions 1231, so that: when the trigger switch 122 is in the first state, the first protrusion 1231 is engaged and fixed with the first recess 1121. When the trigger switch 122 is in the second state, the trigger switch 122 drives the first protrusion 1231 to be spaced apart from the first recess 1121. Specifically, in one example, the locking fitting 112 includes a plurality of first recesses 1121, and the plurality of first recesses 1121 are spaced apart along the length direction of the flexible body 111. The locking member 123 includes at least one first protrusion 1231, and the trigger switch 122 is transmission-connected with the first protrusion 1231, so that: when the trigger switch 122 is in the first state, the first protrusion 1231 is in the first position so that the first protrusion 1231 is engaged and fixed with the first recess 1121. When the trigger switch 122 is in the second state, the first convex portion 1231 is in the second position so that the first convex portion 1231 is spaced apart from the first concave portion 1121. It can be understood that when the trigger switch 122 is in the first state, the first concave portion 1121 and the first convex portion 1231 are engaged and fixed, and the design structure of the convex teeth is simple, and the engagement and fixing effect is good, and it is not easy to reset and loosen.

[0048] It should be noted that the transmission cooperation between the trigger switch 122 and the locking member 123 can be through a connecting rod assembly, or a gear transmission, etc. At the same time, the locking member 123 can be reset by telescopic or rotating, etc., and the former is not restricted too much here.

[0049] In one embodiment, see the attached Figure 3 As shown, the trigger switch 122 is in transmission connection with the first protrusion 1231, so that the first protrusion 1231 can be switched between the first position and the second position. In this way, different from the rotation reset driven by gear transmission, the setting of the locking member 123 is simpler, and no specific setting and rotation to the corresponding position are required to achieve engagement, which improves the convenience of operation.

[0050] In a specific implementation mode, see the attached Figures 3 to 4 As shown, the trigger switch 122 includes a rotating body 1222 and a first elastic member 1223, and the first protrusion 1231 is disposed at one end of the rotating body 1222. When the trigger switch 122 is in the first state, the other end of the rotating body 1222 (see the attached Figure 3) is in a non-pressurized state, and the first elastic member 1223 is in an original length state, so that the first protrusion 1231 is engaged and fixed with the first recess 1121. When the trigger switch 122 is in the second state, the other end of the rotating body 1222 (see attached Figure 4 As shown in the figure, the first elastic member 1223 is in a compressed state, so that one end of the rotating body 1222 drives the first convex portion 1231 to move away from the first recessed portion 1121, and the first recessed portion 1121 and the first convex portion 1231 are arranged at intervals. It can be understood that when the other end of the rotating member is pressed upward, the first elastic member 1223 is in a compressed state, so that one end of the rotating body 1222 (i.e., the first convex portion 1231) is driven to retract inward, thereby realizing the unlocking of the first recessed portion 1121 and the first recessed portion 1121. When the other end of the rotating member is no longer under pressure, the first elastic member 1223 drives the rotating member to reset, thereby driving the first convex portion 1231 to retract and reset, and realize the engagement with the first recessed portion 1121. In this way, the structure is simple and easy to design.

[0051] In another specific embodiment, the trigger switch 122 includes a four-link assembly, and the reset is achieved by the four-link assembly. When the trigger switch 122 is in the second state, one end of one of the four-links is in a compressed state (such as being compressed downward), and at this time, the other link drives the first convex portion 1231 to be spaced from the first concave portion 1121. In this way, the transmission effect is good by using the structure of the link as a transmission method, and it helps to save effort and improve the convenience of operation.

[0052] In order to improve the fixing effect of the locking member 123 and the locking fitting 112, in some embodiments, see the attached Figure 5 As shown, the other end of the flexible body 111 is provided with a hollow portion 1112, and the hollow portion 1112 is limitedly matched with one end of the flexible body 111, so that the locking member 123 and the locking member 112 are matched in the hollow portion 1112. It can be understood that the setting of the hollow portion 1112 allows the flexible body 111 to be inserted and limitedly moved in the hollow portion 1112, thereby preventing the flexible body 111 from swinging too much on both sides and affecting the effect of fixed matching.

[0053] Further, in a specific embodiment, see the attached Figure 5 As shown, the trigger switch 122 includes an elastic sheet 1224. One end of the elastic sheet 1224 is disposed at the hollow portion 1112, so that: when the trigger switch 122 is in the first state, the elastic sheet 1224 presses and fixes the flexible body 111. When the trigger switch 122 is in the second state, the elastic sheet 1224 is spaced apart from the flexible body 111. In this way, the clamping state and the non-clamping state are formed by simply setting the elastic sheet 1224, which is simple in design and convenient in processing, and is conducive to reducing processing costs and processing difficulties.

[0054] It should be noted that the heat insulating layer 140 may be directly disposed between the flexible body 111 and the sensor element 130 , or may be assisted by other matching structures, and no further limitation is imposed herein.

[0055] In combination with any of the above-mentioned embodiments of the heat insulation layer 140, see the attached Figure 6 and attached Figure 7 As shown, the sensor assembly 100 also includes a first connector 150 fixed to the sensor element 130 and a second connector 160 fixed to the flexible body 111. The thermal insulation layer 140 is sandwiched between the first connector 150 and the second connector 160. It can be understood that, in general, the thermal insulation layer 140 is usually made of thermal insulation materials such as plastic materials, silicone materials or rubber materials. In this way, the first connector 150 and the second connector 160 are used as the connection transition between the thermal insulation layer 140 and the flexible body 111 and the sensor element 130, which is conducive to solving the connection problem of the thermal insulation layer 140 with poor fixing effect, and improving the matching effect of the sensor element 130, the thermal insulation layer 140 and the flexible body 111. It should be noted that there can be a variety of matching connection methods for the first connector 150 and the second connector 160 with the flexible body 111 and the sensor element 130, which can be bonding, clamping, etc.

[0056] In a specific implementation manner, see the attached Figure 8 As shown, the heat insulating layer 140 is bonded to the first connecting member 150. In another specific embodiment, the heat insulating layer 140 is bonded to the second connecting member 160. In this way, the bonding connection is convenient for setting and easy for disassembly, which is conducive to improving processing efficiency. Furthermore, the bonding connection has fewer tight seams, which is conducive to preventing moisture and dust particles in the refrigerator 10 from entering the tight seams and causing cleaning difficulties.

[0057] It should be noted that the connection method between the first connector 150 and the sensor element 130, and the connection method between the second connector 160 and the flexible body 111 may be but not limited to bonding, welding, interference fit, etc., and no excessive restrictions are imposed here.

[0058] In some embodiments, the first connector 150 and / or the second connector 160 are made of plastic material. Specifically, in one example, the first connector 150 and / or the second connector 160 include polypropylene material. In this way, the plastic material formed by polypropylene material can further improve the heat insulation effect and has low manufacturing cost.

[0059] In other embodiments, the first connecting member 150 is provided with a first adhesive layer that is bonded to the sensing element 130, and the second connecting member 160 is provided with a second adhesive layer that is bonded to the flexible body 111. The first adhesive layer and the second adhesive layer include at least one of paraffin wax and super glue. In this way, the sensing element 130 and the first connecting member 150, as well as the second connecting body and the flexible body 111, are all bonded, which is convenient to set up and is conducive to improving processing efficiency. Furthermore, the first adhesive layer and the second adhesive layer are made of paraffin wax or super glue, which is low in cost and easy to obtain.

[0060] Specifically, in one example, the first adhesive layer includes paraffin wax, and the second adhesive layer includes strong glue. In this way, the first connector 150 is bonded to the sensor element 130 through the paraffin wax, and is easy to be disassembled through temperature control; and the second connector 160 is bonded to the flexible body 111 through the strong glue, so that the second connector 160 is not easily separated from the flexible body 111 by high temperature, thereby improving the fixing stability of the sensor element 130.

[0061] It should be noted that the thickness of the first connecting member 150 , the second connecting member 160 and the heat insulating layer 140 can be any value and can be selected according to different production requirements.

[0062] Specifically, in one example, see the attached Figure 7 As shown, the thickness of the first connector 150 and / or the second connector 160 is 0.1 mm to 0.6 mm. In another example, the thickness of the heat insulation layer 140 is 0.1 to 0.6 mm. In this way, the thickness can meet the requirements of heat insulation and hardness, while not being too thick to affect the detection effect. Furthermore, it does not take up too much space.

[0063] In order to further expand the application scenarios of the sensor assembly 100, in combination with any embodiment of the second connecting member 160, see the attached Figure 8 As shown, the flexible body 111 is provided with a slide rail 1111, and the slide rail 1111 extends along the length direction of the flexible body 111. The second connecting member 160 is slidably arranged on the slide rail 1111. In this way, the second connecting member 160 can slide on the slide rail 1111, so as to facilitate the adjustment of the detection orientation, so that the sensor element 130 and the heat exchange pipe 320 are more flush after adjustment.

[0064] Furthermore, in order to improve the fixing effect of the sensor element 130, in some embodiments, the slide rail 1111 may also be provided with a plurality of slots, and the second connecting member 160 is snap-fitted and fixed to the slots to achieve the second connecting member 160 being fixed to the slide rail 1111. In this way, the fixing is achieved by snapping and fixing the second connecting member 160 to the corresponding slots, thereby improving the stability of the fixing of the sensor element 130.

[0065] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0066] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0067] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0068] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed to" or "mounted on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0070] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. The technical contents disclosed above can be used to make slight changes or modifications to equivalent implementation methods with equivalent changes. However, any simple modifications, equivalent changes and modifications made to the above implementation methods based on the technical essence of the present application without departing from the contents of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A sensor assembly, characterized in that: include: A connecting assembly, comprising a flexible body and a locking fitting disposed on the flexible body; The flexible body is used to be wound around and fixed on the pipeline of the refrigeration equipment; The locking assembly comprises a trigger switch and a locking member which is transmission-connected to the trigger switch; the trigger switch is fixedly mounted at one end of the flexible body; The trigger switch includes a first state and a second state; when the trigger switch is in the first state, the trigger switch drives the locking member to be locked and fixed with the locking fitting member, so that the flexible body is fixed to the locking assembly; when the trigger switch is in the second state, the locking member is relatively movably connected with the locking fitting member, so that the other end of the flexible body can move relative to the locking assembly; and, A sensing element and a heat insulation layer, wherein the sensing element is fixed to the flexible body through the heat insulation layer.

2. The sensor assembly according to claim 1, characterized in that One of the locking member and the locking member is provided with a plurality of first recesses, and the other is provided with a plurality of first protrusions, so that: when the trigger switch is in the first state, the first protrusions are engaged and fixed with the first recesses; when the trigger switch is in the second state, the trigger switch drives the first protrusions to be spaced apart from the first recesses.

3. The sensor assembly according to claim 2, characterized in that The trigger switch is in transmission connection with the first protrusion, so that the first protrusion can be switched between the first position and the second position. And / or, the trigger switch includes a mounting body, a rotating body and a first elastic member, the rotating body is movably arranged on the mounting body through the first elastic member; the first convex portion is arranged at one end of the rotating body; when the trigger switch is in the first state, the other end of the rotating body is in a non-pressurized state, and the first elastic member is in an original length state, so that the first convex portion is engaged and fixed with the first recessed portion; when the trigger switch is in the second state, the other end of the rotating body is in a pressurized state, so that the first elastic member is in a compressed state, so that one end of the rotating body drives the first convex portion to move away from the first recessed portion, and the first recessed portion and the first convex portion are arranged at an interval.

4. The sensor assembly according to claim 1, characterized in that The other end of the flexible body is provided with a hollow portion, and the hollow portion is limitedly matched with one end of the flexible body so that the locking member and the locking matching member are matched in the hollow portion.

5. The sensor assembly according to claim 4, characterized in that The trigger switch includes an elastic sheet; one end of the elastic sheet is arranged at the hollow portion, so that: when the trigger switch is in the first state, the elastic sheet presses and fixes the flexible body; when the trigger switch is in the second state, the elastic sheet is spaced apart from the flexible body.

6. The sensor assembly according to claim 1, characterized in that The sensor assembly further comprises a first connecting member fixed to the sensing element and a second connecting member fixed to the flexible body; the heat insulation layer is sandwiched between the first connecting member and the second connecting member; The heat insulation layer is bonded to the first connecting member and / or bonded to the second connecting member.

7. The sensor assembly according to claim 6, characterized in that The first connecting member and / or the second connecting member comprises polypropylene material; And / or, the first connecting member is provided with a first adhesive layer bonded to the sensing element, and the second connecting member is provided with a second adhesive layer bonded to the flexible body; the first adhesive layer includes paraffin or super glue, and the second adhesive layer includes paraffin or super glue.

8. The sensor assembly according to claim 6, characterized in that The thickness of the first connecting member and / or the second connecting member is 0.1 mm to 0.6 mm; and / or the thickness of the heat insulation layer is 0.1 mm to 0.6 mm.

9. The sensor assembly according to claim 6, characterized in that The flexible body is provided with a slide rail, and the slide rail extends along the length direction of the flexible body; the second connecting member is slidably arranged on the slide rail.

10. A refrigerator, characterized in that: It comprises a shell assembly provided with a cavity, a heat exchange system and a sensor assembly as described in any one of claims 1 to 9; the heat exchange system comprises a heat exchange power device and a heat exchange pipe, the heat exchange pipe is connected to the heat exchange power device to transport heat to the cavity; the sensor assembly is wound around the heat exchange pipe.

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