Magnetic control proximity switch structure

Abstract

The utility model discloses a magnetic control proximity switch structure, a magnetic control proximity switch comprises a reed switch and a magnetic element, the reed switch is installed in a switch box, the magnetic element is installed in a magnetic block box, and a lead of the reed switch is electrically connected with a main control board of a box body of a refrigeration appliance through an electric connector. The switch box is installed on a box body of the refrigeration appliance, the magnetic block box is installed on a door body of the refrigeration appliance, and when the door body is closed, the magnetic element is close to the reed switch to enable the reed to send out an electric signal. According to the utility model, the reed pipe and the magnetic element are respectively arranged in the switch box and the magnetic block box, so that the reed pipe and the magnetic element are effectively protected, and the switch box can isolate water vapor in the refrigeration appliance, so that the service life of the reed pipe is prolonged in a relatively dry use environment.

Description

Technical Field

[0001] This utility model relates to the field of proximity switch technology, and in particular to a magnetically controlled proximity switch structure. Background Technology

[0002] Currently, in refrigerator lighting applications, contact-type mechanical switches suffer from short lifespans, and exposed push rods or pressure blocks affect the aesthetics of the refrigerator body. Therefore, reed switch magnetic proximity switches can be used instead. A reed switch (also known as a magnetic reed switch) is a passive electronic switch that controls the on / off state of a circuit through an external magnetic field. A reed switch consists of two magnetizable metal reeds sealed in a glass tube. When an external magnetic field approaches, the two reeds are magnetized and generate opposite polarities. The magnetic attraction overcomes the reed's elasticity, causing them to close and the circuit to conduct, thus achieving the switching function. Patent 200420065213.4 discloses a reed switch magnetic control switch. Its principle involves embedding the reed switch within the frame of the refrigerator opening and sealing it with a cap. A corresponding door seal magnetic strip is installed on the refrigerator. When the refrigerator door is closed, the magnetic strip at the door seal disconnects the normally closed contact of the reed switch, preventing the bidirectional thyristor from conducting and turning off the light. When the refrigerator door is opened, the magnetic strip at the door seal moves away from the reed switch, its normally closed contact closes, the bidirectional thyristor conducts, and the light is turned on. However, the interior of the refrigerator is a low-temperature environment, and the opening and closing of the door causes localized high humidity around the refrigerator door opening. Prolonged exposure of the reed switch to this environment can shorten its lifespan and accelerate its damage. Furthermore, the localized magnetic force of the door seal is limited; therefore, the reed switch requires high sensitivity, and in practice, poor sensing can easily occur.

[0003] It is clear that existing technologies still need improvement. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a magnetically controlled proximity switch structure that has the advantages of sensitive sensing, effective protection of reed switches, and extended life of reed switches, and is easy to install and highly adaptable, so as to overcome the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A magnetic proximity switch structure is disclosed, which is applied to a refrigeration appliance, such as a refrigerator or wine cabinet. The magnetic proximity switch includes a reed switch and a magnetic element. The reed switch is installed in a switch box, and the magnetic element is installed in a magnetic block box. The wire of the reed switch is electrically connected to the main control board of the refrigeration appliance through an electrical connector. The switch box is installed on the cabinet of the refrigeration appliance, and the magnetic block box is installed on the door of the refrigeration appliance. When the door is closed, the magnetic element approaches the reed switch, triggering the reed switch to emit an electrical signal.

[0007] Furthermore, the refrigerator's middle cover plate has an opening, and the switch box is disposed within the opening. The switch box includes a pre-embedded box body, a cover plate, and a reed switch mounting base. The pre-embedded box body is fixedly installed within the opening. A wiring groove is provided on one side of the pre-embedded box body. The cover plate and the reed switch mounting base are integrally formed. A fixing structure is provided between the pre-embedded box body and the cover plate. The fixing structure includes a hook. The hook is disposed at the lower part of the reed switch mounting base. The reed switch mounting base has a clearance portion corresponding to the hook. The inner side of the pre-embedded box body has a corresponding slot. The pre-embedded box body and the cover plate are connected by the hook and the slot.

[0008] Furthermore, a positioning groove is provided between the reed switch mounting base and the cover plate. The positioning groove is used to position the reed switch. A wire groove is connected to the lower part of the positioning groove. The cover plate, the reed switch mounting base and the reed switch are integrally injection molded.

[0009] Furthermore, the middle cover plate of the refrigeration appliance has an opening, and the switch box is disposed in the opening. The switch box includes a pre-embedded box body, a reed switch positioning seat, and a reed switch positioning plate. The reed switch positioning seat and the reed switch positioning plate are ultrasonically welded into an integral tube seat. One or both of the reed switch positioning seat and the reed switch positioning plate are provided with a tube groove for accommodating the reed switch, so that the reed switch is embedded in the integral tube seat. The outer side of the integral tube seat is provided with a hook, and the hook is snapped into the groove of the pre-embedded box body.

[0010] Furthermore, one of the reed switch positioning seats and the reed switch positioning plate is provided with a positioning hole, and the other is adapted to be provided with a positioning shaft.

[0011] Furthermore, the switch box is fixed to the wine cabinet decorative cover, and the magnetic block box is fixed to the bottom of the wine cabinet door. The switch box includes a pre-embedded box body, a cover plate, and a reed switch mounting base. The pre-embedded box body is fixed to the wine cabinet decorative cover. The cover plate and the reed switch mounting base are integrally formed. A fixing structure is provided between the pre-embedded box body and the cover plate. The fixing structure includes a hook. The hook is located at the lower part of the reed switch mounting base. The reed switch mounting base has an avoidance part corresponding to the hook. The inner side of the pre-embedded box body has a corresponding slot. The pre-embedded box body and the cover plate are connected by the hook and the slot.

[0012] Furthermore, a positioning groove is provided between the reed switch mounting base and the cover plate. The positioning groove is used to position the reed switch. A wire groove is connected to the lower part of the positioning groove. The cover plate, the reed switch mounting base and the reed switch are integrally injection molded.

[0013] Furthermore, the magnetic block box is fixed to the bottom of the door of the refrigeration appliance, and the switch box includes a reed switch seat. The reed switch seat is fixed to the bottom of the cabinet of the refrigeration appliance and is located close to the door. The reed switch seat is provided with a connecting lug and a wiring cavity. The reed switch seat and the reed switch are integrally injection molded.

[0014] Furthermore, a groove is provided in the wiring cavity of the reed switch socket, the reed switch is embedded in the groove, and the wires at both ends of the reed switch extend from the groove into the wiring cavity.

[0015] Furthermore, the magnetic block box is fixed to the bottom of the door of the refrigeration appliance. The switch box includes a reed switch fixing seat and a reed switch fixing plate. The reed switch fixing seat is fixed to the bottom of the refrigeration appliance and is located close to the door. The reed switch fixing seat is provided with a wiring cavity. One of the reed switch fixing seat and the reed switch fixing plate is provided with a fixing shaft, and the other is adapted to be provided with a fixing hole. The reed switch fixing seat and the reed switch fixing plate are ultrasonically welded into an integral tube seat. One or both of the reed switch fixing seat and the reed switch fixing plate are provided with a tube groove for accommodating the reed switch, so that the reed switch is embedded in the integral tube seat.

[0016] The above technical solution has the following beneficial effects:

[0017] This utility model includes a reed switch and a magnetic element. The reed switch is installed in a switch box, and the magnetic element is installed in a magnetic block box. The wire of the reed switch is electrically connected to the main control board of the refrigerator's casing through an electrical connector. The switch box is installed on the refrigerator's casing, and the magnetic block box is installed on the refrigerator's door. When the door is closed, the magnetic element approaches the reed switch, causing the reed switch to emit an electrical signal. By placing the reed switch and the magnetic element in the switch box and the magnetic block box respectively, both the reed switch and the magnetic element are effectively protected. Furthermore, the switch box can isolate moisture in the refrigerator, keeping the reed switch in a drier operating environment, which helps to extend the reed switch's service life. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0020] Figure 1 This is a schematic diagram of the structure of a first embodiment of the magnetically controlled proximity switch of this utility model;

[0021] Figure 2 This is a schematic diagram of the pre-embedded box structure in Example 1;

[0022] Figure 3 This is a cross-sectional view of the pre-embedded box body in Example 1;

[0023] Figure 4 This is a schematic diagram of the reed switch mounting base structure in Embodiment 1;

[0024] Figure 5 This is a schematic diagram of the mounting structure of the magnetic components;

[0025] Figure 6 This is an exploded view of the pre-embedded box in Example 2;

[0026] Figure 7 This is a schematic diagram of the reed switch positioning seat in Embodiment 2. Figure 1 ;

[0027] Figure 8 This is a schematic diagram of the reed switch positioning seat in Embodiment 2. Figure 2 ;

[0028] Figure 9 This is a schematic diagram of the reed switch positioning plate in Embodiment 2;

[0029] Figure 10 This is a schematic diagram of the installation structure in Example 3;

[0030] Figure 11 for Figure 10 Enlarged view of part B;

[0031] Figure 12 This is a schematic diagram of the installation structure in Example 4;

[0032] Figure 13 for Figure 8 Enlarged view of part C;

[0033] Figure 14 This is a schematic diagram of the reed switch mounting base in Embodiment 4;

[0034] Figure 15 This is a schematic diagram of the reed switch mounting base in Embodiment 5;

[0035] Figure 16 This is a schematic diagram of the reed switch fixing plate in Example 5. Detailed Implementation

[0036] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Example

[0037] See Figures 1-5 As shown, this utility model discloses a magnetic proximity switch structure. The magnetic proximity switch is applied to refrigeration appliances, such as refrigerators 1 or wine cabinets 2. The magnetic proximity switch includes a reed switch 6 and a magnetic element 4. The reed switch 6 is installed in the switch box, and the magnetic element 4 is installed in the magnetic block box 5. The wire of the reed switch 6 is electrically connected to the main control board of the refrigeration appliance through an electrical connector. The switch box is installed on the refrigeration appliance, and the magnetic block box 5 is installed on the positioning plate 100 at the bottom of the door of the refrigeration appliance. When the door is closed, the magnetic element 4 approaches the reed switch 6, causing the reed switch 6 to emit an electrical signal.

[0038] Specifically, a reed switch (not shown in the figure) is fixedly installed on the cabinet of the refrigeration appliance via a switch box. It works in conjunction with the magnetic element 4 inside the magnetic block box 5. When the door of the refrigeration appliance is closed, the magnetic element 4 approaches the reed switch 6. The external magnetic field causes the reed switch 6 to send a switch-close signal to the main control board of the refrigerator or wine cabinet. Upon receiving the switch signal, the main control board outputs control signals such as fan start and light off. When the door of the refrigeration appliance is opened, the reed switch 6, moving away from the magnetic field, sends a switch-open signal to the main control board of the refrigerator or wine cabinet. The main control board then sends control signals such as turning on the interior light and stopping the fan, thus turning on the interior light. Because the reed switch 6 and the magnetic element 4 are respectively located in the switch box and the magnetic block box 5, both are effectively protected. Furthermore, the switch box isolates the reed switch 6 from moisture in the refrigeration appliance, keeping it in a relatively dry operating environment, which helps extend its service life.

[0039] The refrigerator 1 has a square hole 1011 on its middle cover plate 101. The switch box includes a pre-embedded box body 7 and a switch box cover. The switch box is set in the square hole, and the pre-embedded box body 7 is embedded in the foam layer of the middle cover plate, which saves installation space for the switch box and keeps the cabinet aesthetically pleasing. The switch box cover consists of a cover plate 8 and a reed switch mounting base 9. The cover plate and the reed switch mounting base are integrally injection molded. The frontal projection area of ​​the cover plate covers the projection area of ​​the reed switch mounting base and is larger than the area of ​​the square hole, so that the reed switch mounting base is inserted into the pre-embedded box body 7 through the square hole and the cover plate covers the opening of the square hole. The pre-embedded box body 7 is fixed in the square hole. A wiring groove 10 is provided on one side of the pre-embedded box body, so that the wires connecting the refrigerator main control board and the reed switch 6 can be led out from the wiring groove 10 to realize the electrical connection between the main control board and the reed switch 6. A positioning groove 11 and a wire groove 12 are provided on one side wall of the reed switch mounting base 9. The positioning groove 11 is used to position the reed switch 6, and the two ends of the positioning groove 11 are respectively connected to the wire groove 12. The wire groove 12 restricts the position of the wires leading out from both ends of the reed switch 6, so that the wires do not deviate. A fixing structure is provided between the embedded box 7 and the cover plate 8, so that when the reed switch 6 needs to be replaced or repaired, it is not necessary to disassemble the switch box. Only the cover plate 8 in the switch box needs to be removed to repair or replace the reed switch 6 in the cover plate 8.

[0040] See Figure 4 The fixing structure includes a hook 13, which is located at the lower part of the reed switch mounting base 9. The reed switch mounting base 9 is provided with a clearance part 14 around its perimeter, which provides space for the hook 13 to deform, making it easier to insert and remove the reed switch mounting base 9 from the embedded box. The inner side of the embedded box body 7 is provided with a corresponding slot 15. The embedded box and the cover plate 8 are connected by the hook 13 and the slot 15. Therefore, when the reed switch 6 in the reed switch mounting base 9 needs to be repaired or replaced, the maintenance personnel only need to use a tool to gently pry the edge of the cover plate 8, so that the hook 13 at the lower part of the reed switch mounting base 9 undergoes slight deformation, and the cover plate 8 with the reed switch 6 can be removed, saving the maintenance personnel's working time.

[0041] As an improvement, the cover plate 8, the reed switch mounting base 9, and the reed switch 6 are integrally injection molded, which makes the position of the reed switch 6 more fixed and increases the sealing performance of the reed switch 6, providing protection for the reed switch 6. After integral molding, Figure 4 The positioning groove 11 and the wire groove 12 shown are filled with plastic, and the reed switch 6 is embedded in the plastic, with the wires at both ends extending out from the reed switch mounting base 9.

[0042] Magnetic element 4, as a magnetic sensing component, is usually made of a block of magnets. Example

[0043] See Figure 6-9The refrigerator 1 has an opening in its middle cover plate, and the switch box is disposed in the opening. The switch box includes a pre-embedded box body 7, a cover plate 8, a reed switch positioning seat 81, and a reed switch positioning plate 82. The pre-embedded box body 7 is fixedly installed in the opening. A wiring groove 10 is provided on one side of the pre-embedded box body 7. The cover plate 8 and the reed switch positioning seat 81 are integrally formed. A fixing structure is provided between the pre-embedded box body 7 and the cover plate 8. The fixing structure includes a hook 13. The hook 13 is disposed at the lower part of the reed switch positioning plate 82 and the reed switch positioning seat 81. The reed switch positioning plate 82 and the reed switch positioning seat 81 are provided with a clearance part 14 corresponding to the hook 13. The inner side of the pre-embedded box body 7 is provided with... The pre-embedded box 7 and the cover plate 8 are connected by a snap-fit ​​hook 13 and a snap-fit ​​groove 15. A positioning hole 83 is provided on one side of the reed switch positioning seat 81. A positioning shaft 84 corresponding to the positioning hole 83 is provided on the reed switch positioning plate 82, and the reed switch positioning plate 82 is connected to the reed switch positioning seat 81 through the cooperation of the positioning shaft 84 and the positioning hole 83. A positioning groove 11 is provided between the reed switch positioning seat 81 and the reed switch positioning plate 82. The positioning groove 11 is used to position the reed switch 6. A wire groove 12 is connected to the lower part of the positioning groove 11, which restricts the position of the wires leading out from both ends of the reed switch 6, preventing the wires from deviating. The cover plate 8 and the reed switch positioning seat 81 are integrally injection molded. The reed switch positioning plate 82, the reed switch positioning seat 81, and the reed switch 6 are formed by ultrasonic welding, providing stronger protection for the reed switch 6.

[0044] The remaining structure of Example 2 is the same as that of Example 1.

[0045] In Embodiment 2, the cover plate 8 and the reed switch positioning seat 81 are integrally injection molded, making the connection between the cover plate 8 and the reed switch positioning seat 81 more solid and enhancing the reliability of the structure of the cover plate 8 and the reed switch positioning seat 81. The reed switch positioning plate 82, the reed switch positioning seat 81 and the reed switch 6 are formed by ultrasonic welding, avoiding secondary welding, which is more efficient, cheaper and more suitable for large-scale production. Example

[0046] See Figure 10-11The wine cabinet 2 includes a glass door 21 and a cabinet body. A decorative cover 22 is installed at the bottom of the cabinet body, which is located below the door body to enhance the appearance of the wine cabinet. The switch box is fixed inside the decorative cover 22 of the wine cabinet 2, and the magnetic block box 5 is fixed at the bottom of the door body of the wine cabinet 2. The switch box includes a pre-embedded box body 7, a cover plate 8, and a reed switch mounting base 9. The structure of the switch box is the same as in Embodiment 1. The difference from Embodiment 1 is that in Embodiment 2, the pre-embedded box body 7 is installed on the decorative cover 22 of the wine cabinet 2 instead of being embedded in the foam layer of the cabinet body. The wire connecting the main control board of the wine cabinet and the reed switch extends from the bottom of the wine cabinet body to the inside of the cover of the decorative cover, passes through the wiring groove 10, and connects to the reed switch 6 in the reed switch mounting base 9.

[0047] The remaining structure of Example 3 is the same as that of Example 1. Example

[0048] See Figure 8-10 The magnetic proximity switch structure of this utility model is installed at the bottom of a refrigerator or wine cabinet. The magnetic block box 5 is fixed to the bottom of the refrigerator door 1, positioned close to the cabinet body. The switch box is a reed switch holder 16, which is fixed to the bottom plate of the refrigerator 1. Connecting ears 17 are provided on both sides and the bottom of the reed switch holder 16. The reed switch holder 16 and the reed switch 6 are integrally injection molded. The reed switch holder has a wiring cavity 162 for connecting to the main control board wires of the cabinet, and the wires and connectors are accommodated within the wiring cavity.

[0049] As an improvement, the reed switch and the reed switch seat are integrally injection molded, and a groove 161 is provided in the wiring cavity. The reed switch is embedded in the groove 161, and the wires at both ends of the reed switch extend from the groove 161 to the positioning groove 11 in the wiring cavity. The groove 161 accommodates the reed switch and restricts the position of the wires led out from both ends of the reed switch, so that the wires will not deviate.

[0050] The remaining structure of Example 4 is the same as that of Example 1.

[0051] In embodiment four, in order to better save installation space of refrigerator 1 and maintain the aesthetics of the cabinet, the reed switch seat 16 is fixed to the bottom plate of refrigerator 1, and the magnetic block box 5 is fixed to the bottom of the lower door of refrigerator 1 and corresponds to it. By changing the distance between the reed switch and the magnetic block, the on / off signal of the reed switch is provided to the main control board, so that refrigerator 1 realizes the function of turning on the light when it is opened and turning off the light when it is closed. The door opening and closing signal can also provide important reference information for the control of refrigeration appliances such as the fan and compressor.

[0052] Since the reed switch seat 16 is fixed to the bottom plate of the refrigerator 1 by the screw connection inside the connecting ear 17, the reed switch seat 16 is easy to disassemble, which helps to save maintenance personnel's time. Example

[0053] See Figure 15-16 The magnetic block box 5 is fixed to the bottom of the door of the refrigeration appliance. The switch box includes a reed switch fixing seat and a reed switch fixing plate 164. The reed switch fixing seat 163 is fixed to the bottom of the refrigeration appliance and is located close to the door. The reed switch fixing seat 163 is provided with a connecting ear 17 and a wiring cavity 162. A tube groove 161 is provided in the wiring cavity 162 of the reed switch fixing seat 163. The reed switch 6 is embedded in the tube groove 161. The upper surface of the reed switch fixing seat 163 is provided with a fixing hole 165. The reed switch fixing plate 164 is provided with a fixing shaft 166 corresponding to the fixing hole 165. The reed switch fixing plate 164 is connected to the reed switch fixing seat 163 through the cooperation of the fixing shaft 166 and the fixing hole 165. The reed switch fixing plate 164, the reed switch fixing seat 163 and the reed switch 6 are formed by ultrasonic welding.

[0054] The remaining structure of Example 5 is the same as that of Example 1.

[0055] In embodiment five, the reed switch fixing plate is fixed in the reed switch fixing seat through the fixing hole and the fixing shaft, thereby constraining the reed switch in the tube groove of the reed switch fixing seat, making the fixing position of the reed switch more stable. The reed switch fixing plate 164, the reed switch fixing seat 163 and the reed switch 6 are formed by ultrasonic welding, making them more firmly combined and the overall integrity of the switch box stronger.

Claims

1. A magnetically controlled proximity switch structure, wherein the magnetically controlled proximity switch is applied to a refrigeration appliance, the refrigeration appliance being a refrigerator (1) or a wine cabinet (2), characterized in that, The magnetic proximity switch includes a reed switch (6) and a magnetic element (4). The reed switch (6) is installed in the switch box, and the magnetic element (4) is installed in the magnetic block box (5). The wire of the reed switch (6) is electrically connected to the main control board of the refrigerator's cabinet through an electrical connector. The switch box is installed on the refrigerator's cabinet, and the magnetic block box (5) is installed on the refrigerator's door. When the door is closed, the magnetic element (4) approaches the reed switch (6) and triggers the reed switch (6) to send an electrical signal.

2. The magnetically controlled proximity switch structure according to claim 1, characterized in that, The middle cover of the refrigeration appliance has an opening, and the switch box is set in the opening. The switch box includes a pre-embedded box body (7), a cover plate (8), and a reed switch mounting base (9). The pre-embedded box body (7) is fixed in the opening. A wiring groove (10) is provided on one side of the pre-embedded box body (7). The cover plate (8) and the reed switch mounting base (9) are integrally formed. A fixing structure is provided between the pre-embedded box body (7) and the cover plate (8). The fixing structure includes a hook (13). The hook (13) is set at the lower part of the reed switch mounting base (9). The reed switch mounting base (9) is provided with a relief part (14) corresponding to the hook (13). The inner side of the pre-embedded box body (7) is provided with a corresponding slot (15). The pre-embedded box body (7) and the cover plate (8) are connected by the hook (13) and the slot (15).

3. The magnetically controlled proximity switch structure according to claim 2, characterized in that, A positioning groove (11) is provided between the reed switch mounting base (9) and the cover plate (8). The positioning groove (11) is used to position the reed switch (6). The lower part of the positioning groove (11) is connected to the wire groove (12). The cover plate (8), the reed switch mounting base (9) and the reed switch (6) are integrally injection molded.

4. The magnetically controlled proximity switch structure according to claim 1, characterized in that, The middle cover plate of the refrigeration appliance has an opening, and the switch box is set in the opening. The switch box includes a pre-embedded box body (7), a reed switch positioning seat (81) and a reed switch positioning plate (82). The reed switch positioning seat (81) and the reed switch positioning plate (82) are ultrasonically welded into an integral tube seat. One or both of the reed switch positioning seat (81) and the reed switch positioning plate (82) are provided with a tube groove for accommodating the reed switch, so that the reed switch is embedded in the integral tube seat. The outer side of the integral tube seat is provided with a hook (13), and the hook and the groove (15) of the pre-embedded box body are snapped together.

5. The magnetically controlled proximity switch structure according to claim 4, characterized in that, The reed switch positioning seat and the reed switch positioning plate are provided with positioning holes in one of them and positioning shafts in the other.

6. The magnetically controlled proximity switch structure according to claim 1, characterized in that, The switch box is fixed on the decorative cover of the wine cabinet (2), and the magnetic block box (5) is fixed on the bottom of the door of the wine cabinet (2). The switch box includes a pre-embedded box body (7), a cover plate (8), and a reed switch mounting base (9). The pre-embedded box body (7) is fixed on the decorative cover of the wine cabinet. The cover plate (8) and the reed switch mounting base (9) are integrally formed. A fixing structure is provided between the pre-embedded box body (7) and the cover plate (8). The fixing structure includes a hook (13). The hook (13) is located at the lower part of the reed switch mounting base (9). The reed switch mounting base (9) is provided with a relief part (14) corresponding to the hook (13). The inner side of the pre-embedded box body (7) is provided with a corresponding slot (15). The pre-embedded box body (7) and the cover plate (8) are connected by the hook (13) and the slot (15).

7. The magnetically controlled proximity switch structure according to claim 6, characterized in that, A positioning groove (11) is provided between the reed switch mounting base (9) and the cover plate (8). The positioning groove (11) is used to position the reed switch (6). The lower part of the positioning groove (11) is connected to the wire groove (12). The cover plate (8), the reed switch mounting base (9) and the reed switch (6) are integrally injection molded.

8. The magnetically controlled proximity switch structure according to claim 1, characterized in that, The magnetic block box (5) is fixed to the bottom of the door of the refrigeration appliance. The switch box includes a reed switch seat (16). The reed switch seat (16) is fixed to the bottom of the cabinet of the refrigeration appliance and is located close to the door. The reed switch seat (16) is provided with a connecting ear (17) and a wiring cavity (162). The reed switch seat (16) and the reed switch (6) are integrally injection molded.

9. A magnetically controlled proximity switch structure according to claim 8, characterized in that, The reed switch seat (16) has a groove (161) in the wiring cavity, the reed switch is embedded in the groove (161), and the wires at both ends of the reed switch extend from the groove (161) into the wiring cavity.

10. A magnetically controlled proximity switch structure according to claim 1, characterized in that, The magnetic block box (5) is fixed to the bottom of the door of the refrigeration appliance. The switch box includes a reed switch fixing seat (163) and a reed switch fixing plate (164). The reed switch fixing seat (163) is fixed to the bottom of the cabinet of the refrigeration appliance and is located close to the door. The reed switch fixing seat (163) is provided with a wiring cavity (162). One of the reed switch fixing seat (163) and the reed switch fixing plate (164) is provided with a fixing shaft (166) and the other is adapted to be provided with a fixing hole (165). The reed switch fixing seat and the reed switch fixing plate are ultrasonically welded into an integral tube seat. One or both of the reed switch fixing seat and the reed switch fixing plate are provided with a tube groove for accommodating the reed switch so that the reed switch is embedded in the integral tube seat.

Images