Signal receiving piece, shell assembly and electrical equipment

Abstract

The utility model relates to the technical field of signal receiving members, and discloses a signal receiving member, a housing assembly and electrical equipment, the signal receiving member is used on the electrical equipment, the electrical equipment comprises a housing, and the housing is provided with an opening; the signal receiving piece comprises a signal receiving body, a signal receiving convex block and a first clamping piece; the signal receiving body is provided with a first end face. The signal receiving protruding block is arranged on the first end face in a protruding mode, and the signal receiving protruding block is inserted into the open hole in the axis direction of the open hole. The first clamping piece is convexly arranged on the signal receiving body; the shell is provided with a second clamping piece, and the first clamping piece is connected with the second clamping piece in a clamping mode. According to the signal receiving piece provided by the utility model, the signal receiving piece and the shell can be simply and conveniently positioned and assembled along the same direction, so that the assembling convenience of the signal receiving piece is improved, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of signal receiving technology, specifically to signal receiving devices, housing assemblies, and electrical equipment. Background Technology

[0002] In current household appliances, infrared remote control functionality is increasingly widely used in people's daily lives. Due to the inherent characteristics of infrared remote control, for casings made of non-transparent materials, holes need to be made in the casing of the entire appliance. The signal receiver is placed inside the casing and positioned corresponding to the hole. Furthermore, when the signal receiver is far from the opening in the casing, an additional transparent signal receiver is required so that the signal receiver can receive the infrared signal emitted by the remote control. Fixing and positioning the signal receiver is difficult and costly. Utility Model Content

[0003] In view of this, the present invention provides a signal receiver, a housing assembly, and an electrical device to solve the problems of high difficulty and cost in fixing and positioning the signal receiver.

[0004] In a first aspect, this utility model provides a signal receiver for use in electrical equipment, the electrical equipment including a housing having an opening; the signal receiver includes:

[0005] The signal receiving body has a first end face;

[0006] A signal receiving bump protrudes from the first end face and is inserted into the opening along the axial direction of the opening.

[0007] A first snap-fit ​​component protrudes from the signal receiving body; a second snap-fit ​​component is provided on the housing, the first snap-fit ​​component snaps into the second snap-fit ​​component, and is located between the second snap-fit ​​component and the opening.

[0008] Beneficial effects: A signal receiving protrusion is provided on the first end face of the signal receiver body. The signal receiving protrusion is inserted into the opening, which can be used to simply position the signal receiver and the opening, reducing positioning costs. The first and second snap-fit ​​pieces are snapped together along the insertion direction of the signal receiving protrusion and the opening, which can easily assemble the signal receiver and the housing in the same direction without adding any parts, thus improving the assembly convenience of the signal receiver and reducing assembly and fixing costs. Furthermore, the insertion of the opening and the signal receiving protrusion can limit the circumferential movement of the signal receiver, and the second snap-fit ​​piece and the housing can limit the movement of the signal receiver in the axial direction of the opening, enhancing the connection stability of the signal receiver. Also, the insertion of the signal receiving protrusion and the opening can fill the opening, ensuring the flatness and aesthetics of the housing appearance.

[0009] In one optional embodiment, the signal receiving bump protrudes along a first direction and is disposed on the first end face; the first snap-fit ​​protrudes along a second direction from the signal receiving body; wherein, the first direction is perpendicular to the second direction and the first direction is parallel to the axial direction of the opening.

[0010] Beneficial effect: The first connector protrudes from the signal receiving protrusion along the second direction, and the first and second connectors can be adjusted to the outside of the signal receiving body, so that the second connector will not rub against the signal receiving body during the process of the signal receiving protrusion being inserted into the opening along the first direction.

[0011] In an optional embodiment, the signal receiving body further comprises a second end face disposed opposite to the first end face, and the first snap-fit ​​member includes:

[0012] The elastic arm has one end connected to the second end face of the signal receiving body, and the other end extends away from the first end face.

[0013] The buckle has one end connected to the other end of the elastic arm, and the other end is a snap-fit ​​end, which protrudes from the signal receiving body along the second direction.

[0014] Beneficial effect: The elastic arm allows the first snap-fit ​​to form an elastic latch, facilitating the connection between the signal receiver and the housing.

[0015] In one optional embodiment, the snap-fit ​​end is provided with a first guide slope on the side facing the signal receiving body, and the distance between the first guide slope and the first end face gradually decreases in the direction closer to the elastic arm.

[0016] Beneficial effect: The first guide slope can guide the engagement between the first and second snap-fit ​​components during the connection of the signal receiver with the housing in the first direction.

[0017] In one optional embodiment, the snap-fit ​​end has a second guide slope on the side facing away from the signal receiving body, and the distance between the second guide slope and the first end face gradually increases toward the elastic arm.

[0018] Beneficial effect: The second guide slope can guide the engagement between the first and second snap-fit ​​components during the connection of the signal receiver with the housing in the first direction.

[0019] In one optional embodiment, the second snap-fit ​​member has a third guide slope on the side facing away from the opening, and the distance between the third guide slope and the plane where the opening is located gradually decreases in the direction closer to the opening.

[0020] Beneficial effect: The third guide slope can guide the engagement between the first and second snap-fit ​​components during the connection of the signal receiver with the housing in the first direction.

[0021] In one optional embodiment, a first guide rib protrudes from the housing along the axial direction of the opening, the first guide rib is disposed on the side of the opening, and a guide groove is provided on the signal receiving body, the first guide rib being slidably engaged in the guide groove.

[0022] Beneficial effects: The sliding fit between the first guide limiting rib and the guide limiting groove can both guide the movement of the signal receiver and limit its movement.

[0023] Secondly, this utility model also provides a housing assembly, comprising:

[0024] The housing has an opening and a second snap-fit ​​component, the opening and the second snap-fit ​​component being spaced apart;

[0025] The aforementioned signal receiver.

[0026] In one optional embodiment, a second guide rib protrudes from the housing along the axial direction of the opening. There are at least two second guide ribs, which are distributed at intervals around the outer periphery of the opening. A first inclined guide surface is provided at one end of the second guide rib away from the opening, and the first inclined guide surface slides in cooperation with the signal receiving body.

[0027] Beneficial effects: The first inclined guide surface slides in cooperation with the signal receiving body, the second guide limiting rib slides in cooperation with the side wall of the signal receiving body, and at least two second guide limiting ribs are distributed at intervals around the outer periphery of the opening, which can both guide the movement of the signal receiving device and limit the signal receiving device.

[0028] In one optional embodiment, the housing is provided with a mounting groove, and the opening is provided at the bottom of the mounting groove; the second snap-fit ​​member protrudes from the groove wall of the mounting groove and is located near the groove opening of the mounting groove.

[0029] In one optional embodiment, a limiting rib protrudes from the housing along the axial direction of the opening, and the limiting rib is disposed on the side of the opening; the first end face abuts against the limiting rib.

[0030] In one optional embodiment, the limiting rib has a second inclined guide surface on the side facing the opening, and the second inclined guide surface slides in cooperation with the signal receiving protrusion.

[0031] Thirdly, this utility model also provides an electrical device, comprising:

[0032] Signal receiver head;

[0033] In the aforementioned housing assembly, the signal receiver head is connected to the housing, and the signal receiver is disposed between the signal receiver head and the housing.

[0034] In one alternative implementation, the electrical device is a cooling fan.

[0035] In one alternative embodiment, the housing includes a front shell, and the opening is provided on the front shell.

[0036] In one alternative embodiment, the housing includes a lampshade, and the opening is provided on the lampshade. Attached Figure Description

[0037] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of a housing assembly according to an embodiment of the present utility model;

[0039] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0040] Figure 3 This is a cross-sectional view of a housing assembly according to an embodiment of the present utility model;

[0041] Figure 4 for Figure 3 A magnified view of part B in the diagram;

[0042] Figure 5 This is a schematic diagram of the housing of a housing assembly according to an embodiment of the present utility model;

[0043] Figure 6 for Figure 5 A magnified view of part of C;

[0044] Figure 7 This is a schematic diagram of another perspective of the housing of a housing assembly according to an embodiment of the present utility model;

[0045] Figure 8 for Figure 7 A magnified view of part of D;

[0046] Figure 9 This is a cross-sectional view of the housing of a housing assembly according to an embodiment of the present utility model.

[0047] Figure 10 This is a cross-sectional view of the housing of a housing assembly according to an embodiment of the present utility model.

[0048] Figure 11 for Figure 10 A magnified view of part of E in the diagram;

[0049] Figure 12 This is a schematic diagram of a signal receiving device according to an embodiment of the present utility model.

[0050] Figure 13 This is a schematic diagram from another perspective of a signal receiving device according to an embodiment of the present utility model;

[0051] Figure 14 This is a schematic diagram from another perspective of a signal receiving device according to an embodiment of the present utility model;

[0052] Figure 15 This is another partial cross-sectional view of a housing assembly according to an embodiment of the present utility model;

[0053] Figure 16 This is a schematic diagram of another housing assembly according to an embodiment of the present utility model;

[0054] Figure 17 for Figure 16 A magnified view of part of F;

[0055] Figure 18 This is a cross-sectional view of another housing assembly according to an embodiment of the present utility model;

[0056] Figure 19 for Figure 18 A magnified view of a portion of G.

[0057] Explanation of reference numerals in the attached figures:

[0058] 100. Signal receiver;

[0059] 200. Housing; 201. Opening; 202. Second snap-fit ​​component; 2021. Third guide ramp; 203. First guide limiting rib; 2031. Third inclined guide surface; 204. Second guide limiting rib; 2041. First inclined guide surface; 205. Mounting groove; 206. Limiting rib; 2061. Second inclined guide surface;

[0060] 300. Signal receiver head;

[0061] 1. Signal receiving body; 11. First end face; 12. Guide limiting groove;

[0062] 2. Signal receiving bump;

[0063] 3. First snap-fit ​​component; 31. Elastic arm; 32. Buckle; 321. First guide slope; 322. Second guide slope. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0065] The following is combined with Figures 1 to 19 The following describes embodiments of the present invention.

[0066] According to an embodiment of the present invention, a signal receiver 100 is provided for use in an electrical device. The electrical device includes a housing 200, on which an opening 201 is provided. The signal receiver 100 includes a signal receiving body 1, a signal receiving protrusion 2, and a first snap-fit ​​member 3. The signal receiving body 1 has a first end face 11. The signal receiving protrusion 2 protrudes from the first end face 11 and is inserted into the opening 201 along the axial direction of the opening 201. The distance by which the signal receiving protrusion 2 protrudes from the first end face 11 is slightly greater than, equal to, or slightly less than the depth of the opening 201 in its axial direction. The first snap-fit ​​member 3 protrudes from the signal receiving body 1. The housing 200 has a second snap-fit ​​member 202, and the first snap-fit ​​member 3 snaps into the second snap-fit ​​member 202.

[0067] A signal receiving protrusion 2 protrudes from the first end face 11 of the signal receiving body 1. The signal receiving protrusion 2 is inserted into the opening 201, which allows for simple positioning of the signal receiving component 100 and the opening 201, reducing positioning costs. The first snap-fit ​​component 3 and the second snap-fit ​​component 202 snap-fit ​​together along the insertion direction of the signal receiving protrusion 2 and the opening 201, allowing for simple and convenient assembly of the signal receiving component 100 and the housing 200 in the same direction, fixing the signal receiving component 100 to the housing 200 without adding any additional parts. This design improves the ease of assembly of the signal receiver 100 and reduces assembly and fixing costs. Furthermore, the circumferential positioning of the signal receiver 100 can be limited by the insertion of the opening 201 into the signal receiving protrusion 2, and the signal receiver 100 can be limited along the axial direction of the opening 201 by the second snap-fit ​​202 and the housing 200, enhancing the connection stability of the signal receiver 100. Additionally, the insertion of the signal receiving protrusion 2 into the opening 201 fills the opening 201, ensuring the flatness and aesthetics of the housing 200.

[0068] In a specific implementation, the shape of the signal receiving bump 2 matches the shape of the opening 201.

[0069] In one specific embodiment, when the second snap-fit ​​member 202 is a protruding plate-like structure or sheet-like structure, the first snap-fit ​​member 3 is located between the second snap-fit ​​member 202 and the opening 201.

[0070] In another specific embodiment, the second snap-fit ​​element 202 may also be a slot or a hole.

[0071] In one embodiment, the signal receiving bump 2 protrudes along a first direction and is disposed on the first end face 11; the first snap-fit ​​member 3 protrudes along a second direction and is disposed on the signal receiving body 1; wherein, the first direction is perpendicular to the second direction and the first direction is parallel to the axial direction of the opening 201.

[0072] The first connector 3 protrudes from the signal receiving protrusion 2 along the second direction. The first connector 3 and the second connector 202 can be adjusted to the outside of the signal receiving body 1 so that the second connector 202 will not rub against the signal receiving body 1 during the process of the signal receiving protrusion 2 being inserted into the opening 201 along the first direction.

[0073] In one embodiment, the signal receiving body 1 is further provided with a second end face opposite to the first end face 11, and the first snap-fit ​​member 3 includes an elastic arm 31 and a snap fastener 32; one end of the elastic arm 31 is connected to the second end face of the signal receiving body 1, and the other end extends away from the first end face 11; one end of the snap fastener 32 is connected to the other end of the elastic arm 31, and the other end is a snap-fit ​​end, which protrudes from the signal receiving body 1 along the second direction.

[0074] By setting the elastic arm 31, the first snap-fit ​​member 3 can form an elastic snap 32, which facilitates the connection between the signal receiver 100 and the housing 200.

[0075] In one embodiment, the snap-fit ​​end is provided with a first guide slope 321 on the side facing the signal receiving body 1, and the distance between the first guide slope 321 and the first end face 11 gradually decreases in the direction closer to the elastic arm 31.

[0076] The first guide slope 321 can guide the engagement between the first snap-fit ​​member 3 and the second snap-fit ​​member 202 during the process of the signal receiver 100 connecting to the housing 200 in the first direction.

[0077] In one embodiment, the snap-fit ​​end has a second guide slope 322 on the side facing away from the signal receiving body 1, and the distance between the second guide slope 322 and the first end face 11 gradually increases toward the elastic arm 31.

[0078] The second guide slope 322 is provided to guide the engagement between the first snap-fit ​​member 3 and the second snap-fit ​​member 202 during the process of the signal receiver 100 being connected to the housing 200 along the first direction.

[0079] In one embodiment, the second snap-fit ​​member 202 has a third guide slope 2021 on the side opposite to the opening 201, and the distance between the third guide slope 2021 and the plane where the opening 201 is located gradually decreases in the direction closer to the opening 201.

[0080] The third guide slope 2021 can guide the engagement between the first snap-fit ​​member 3 and the second snap-fit ​​member 202 during the process of the signal receiver 100 connecting to the housing 200 in the first direction.

[0081] In one embodiment, the distance by which the signal receiving bump 2 protrudes from the first end face 11 is slightly greater than, equal to, or slightly less than the depth of the opening 201 in its axial direction. That is, the distance by which the signal receiving bump 2 protrudes from the first end face 11 is the same as or slightly different from the depth of the opening 201 in its axial direction.

[0082] The distance by which the signal receiving bump 2 protrudes from the first end face 11 is slightly greater than, equal to, or slightly less than the depth of the opening 201 in its axial direction, so that the opening 201 can be filled to ensure the flatness and aesthetics of the appearance of the housing 200.

[0083] In a specific implementation, there may be one first card connector 3 and one corresponding second card connector 202. Alternatively, there may be two first card connectors 3, which are respectively disposed on both sides of the signal receiving body 1 along the second direction, and two corresponding second card connectors 202 are also provided, with the two second card connectors 202 respectively engaging with the two first card connectors 3.

[0084] According to an embodiment of the present invention, another aspect provides a housing assembly, including a housing 200 and the aforementioned signal receiver 100; the housing 200 is provided with an opening 201 and a second snap-fit ​​member 202, the opening 201 and the second snap-fit ​​member 202 being spaced apart. The signal receiver 100 includes a signal receiver body 1, a signal receiver protrusion 2, and a first snap-fit ​​member 3; the signal receiver body 1 is provided with a first end face 11; the signal receiver protrusion 2 protrudes from the first end face 11 and is inserted into the opening 201 along the axial direction of the opening 201; the distance by which the signal receiver protrusion 2 protrudes from the first end face 11 is greater than or equal to the depth of the opening 201 in its axial direction; the first snap-fit ​​member 3 protrudes from the signal receiver body 1; the housing 200 is provided with a second snap-fit ​​member 202, the first snap-fit ​​member 3 snaps into the second snap-fit ​​member 202 and is located between the second snap-fit ​​member 202 and the opening 201.

[0085] A signal receiving protrusion 2 protrudes from the first end face 11 of the signal receiving body 1. The signal receiving protrusion 2 is inserted into the opening 201. The first snap-fit ​​member 3 and the second snap-fit ​​member 202 are snapped together along the insertion direction of the signal receiving protrusion 2 and the opening 201. This allows for simple and convenient assembly of the signal receiving component 100 and the housing 200 in the same direction, fixing the signal receiving component 100 to the housing 200 without adding any parts, thus improving the assembly convenience of the signal receiving component 100. Furthermore, the insertion of the opening 201 into the signal receiving protrusion 2 limits the circumferential movement of the signal receiving component 100, while the second snap-fit ​​member 202 and the housing 200 limit the signal receiving component 100 along the axial direction of the opening 201, enhancing the connection stability of the signal receiving component 100. Additionally, the insertion of the signal receiving protrusion 2 into the opening 201 fills the opening 201, ensuring the flatness and aesthetics of the housing 200.

[0086] In one embodiment, a first guide rib 203 protrudes from the housing 200 along the axial direction of the opening 201. The first guide rib 203 is disposed on the side of the opening 201. A guide groove 12 is provided on the signal receiving body 1. The first guide rib 203 is slidably engaged in the guide groove 12.

[0087] The sliding fit between the first guide limiting rib 203 and the guide limiting groove 12 can both guide the movement of the signal receiver 100 and limit the movement of the signal receiver 100.

[0088] In a specific implementation, the size of the opening of the guide limiting groove 12 gradually decreases towards the bottom of the groove, which facilitates the cooperation between the first guide limiting rib 203 and the guide limiting groove 12.

[0089] Specifically, there may be one first guide limiting rib 203, or at least two may be provided at intervals, and the number of guide limiting grooves 12 is the same as the number of first guide limiting ribs 203. A third inclined guide surface 2031 is also provided at one end of the first guide limiting rib 203 that is far away from the hole, and the third inclined guide surface 2031 slides in cooperation with the bottom of the guide limiting groove 12.

[0090] In one embodiment, a second guide rib 204 protrudes from the housing 200 along the axial direction of the opening 201. There are at least two second guide ribs 204, which are distributed at intervals around the outer periphery of the opening 201. A first inclined guide surface 2041 is provided at one end of the second guide rib 204 away from the opening 201. The first inclined guide surface 2041 slides with the signal receiving body 1.

[0091] The first inclined guide surface 2041 slides with the signal receiving body 1, the second guide limiting rib 204 slides with the side wall of the signal receiving body 1, and at least two second guide limiting ribs 204 are distributed at intervals around the outer periphery of the opening 201, which can both guide the movement of the signal receiving component 100 and limit the signal receiving component 100.

[0092] In a specific implementation, there may be two, three, or at least four second guide limiting ribs 204. When there are two first guide limiting ribs 203, a second guide limiting rib 204 may also be provided between the two first guide limiting ribs 203.

[0093] In one embodiment, the housing 200 is provided with a mounting groove 205, and the opening 201 is provided at the bottom of the mounting groove 205; the second snap-fit ​​member 202 protrudes from the groove wall of the mounting groove 205 and is provided at a position close to the opening of the mounting groove 205.

[0094] The housing 200 is provided with a mounting groove 205 to facilitate the installation of the second snap-fit ​​202 and to facilitate the protection of the signal receiver 100.

[0095] In specific embodiments, the first snap-fit ​​member 3 is connected to both the bottom and the wall of the mounting groove 205; alternatively, the first snap-fit ​​member 3 is only connected to the wall of the mounting groove 205; or the first snap-fit ​​member 3 is only connected to the bottom of the mounting groove 205. Some second snap-fit ​​members 202 may be connected only to the bottom of the mounting groove 205, some second snap-fit ​​members 202 may be connected only to the wall of the mounting groove 205, and some second snap-fit ​​members 202 may be connected to both the wall and the bottom of the mounting groove 205.

[0096] In one embodiment, a limiting rib 206 protrudes from the housing 200 along the axial direction of the opening 201, and the limiting rib 206 is disposed on the side of the opening 201; the first end face 11 abuts against the limiting rib 206.

[0097] By having the limiting rib 206 contact the first end face 11, the first end face 11 can be prevented from making face-to-face contact with the housing 200, so as to prevent the assembly gap between the two from being too large when at least one of the housing 200 or the signal receiver 100 is deformed.

[0098] In a specific implementation, at least two limiting ribs 206 may be provided, and the at least two limiting ribs 206 may be spaced apart on one side of the opening 201 along the length direction of the opening 201; or, the at least two limiting ribs 206 may be respectively provided on both sides of the opening 201 along the width direction of the opening 201.

[0099] In one embodiment, the limiting rib 206 has a second inclined guide surface 2061 on the side facing the opening 201, and the second inclined guide surface 2061 slides in cooperation with the signal receiving protrusion 2.

[0100] The second inclined guide surface 2061 slides with the signal receiving protrusion 2, which can guide the insertion between the signal receiving protrusion 2 and the opening 201.

[0101] According to an embodiment of the present invention, in another aspect, an electrical device is also provided, including a signal receiver 300 and the aforementioned housing assembly, wherein the signal receiver 300 is connected to the housing 200, and the signal receiver 100 is disposed between the signal receiver 300 and the housing 200.

[0102] The remote control signal is transmitted to the signal receiver 300 through the signal receiver 100. The signal receiver 300 then feeds the signal back to the controller of the electrical appliance so that the controller can control the electrical appliance.

[0103] In a specific implementation, the signal receiver 300 is an infrared receiver.

[0104] In one embodiment, the electrical device is a cooling fan.

[0105] In one embodiment, the housing 200 includes a front housing, and the opening 201 is disposed on the front housing.

[0106] In one embodiment, the housing 200 includes a lampshade, and the opening 201 is disposed on the lampshade.

[0107] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A signal receiver for use in an electrical device, the electrical device comprising a housing (200) having an opening (201) thereon; characterized in that, The signal receiver (100) includes: The signal receiving body (1) is provided with a first end face (11); A signal receiving bump (2) protrudes from the first end face (11) and is inserted into the opening (201) along the axial direction of the opening (201). A first snap-fit ​​member (3) protrudes from the signal receiving body (1); a second snap-fit ​​member (202) is provided on the housing (200), and the first snap-fit ​​member (3) and the second snap-fit ​​member (202) are snapped together along the insertion direction of the signal receiving protrusion (2).

2. The signal receiver according to claim 1, characterized in that, The signal receiving bump (2) protrudes along a first direction and is disposed on the first end face (11); the first snap-fit ​​member (3) protrudes along a second direction from the signal receiving body (1); wherein, the first direction is perpendicular to the second direction and the first direction is parallel to the axial direction of the opening (201).

3. The signal receiver according to claim 2, characterized in that, The signal receiving body (1) is further provided with a second end face opposite to the first end face (11), and the first snap-fit ​​member (3) includes: The elastic arm (31) is connected at one end to the second end face of the signal receiving body (1) and at the other end extends away from the first end face (11); The buckle (32) is connected at one end to the other end of the elastic arm (31) and at the other end is a snap-fit ​​end, which protrudes from the signal receiving body (1) along the second direction.

4. The signal receiver according to claim 3, characterized in that, The snap-fit ​​end is provided with a first guide slope (321) on the side facing the signal receiving body (1), and the distance between the first guide slope (321) and the first end face (11) gradually decreases in the direction closer to the elastic arm (31). And / or, a second guide slope (322) is provided on the side of the snap-fit ​​end facing away from the signal receiving body (1), and the distance between the second guide slope (322) and the first end face (11) gradually increases in the direction closer to the elastic arm (31).

5. The signal receiver according to any one of claims 1 to 4, characterized in that, The second snap-fit ​​member (202) has a third guide slope (2021) on the side opposite to the opening (201), and the distance between the third guide slope (2021) and the plane where the opening (201) is located gradually decreases in the direction closer to the opening (201).

6. The signal receiver according to any one of claims 1 to 4, characterized in that, The signal receiving body (1) is provided with a guide limiting groove (12), and the housing (200) is provided with a first guide limiting rib (203) protruding along the axial direction of the opening (201). The first guide limiting rib (203) is disposed on the side of the opening (201) and slides in the guide limiting groove (12).

7. A housing assembly, characterized in that, include: The housing (200) is provided with an opening (201) and a second snap-fit ​​member (202), wherein the opening (201) and the second snap-fit ​​member (202) are spaced apart; The signal receiver (100) according to any one of claims 1 to 6.

8. The housing assembly according to claim 7, characterized in that, The housing (200) has a second guide rib (204) protruding along the axial direction of the opening (201). There are at least two second guide ribs (204), which are distributed at intervals around the outer periphery of the opening (201). The end of the second guide rib (204) away from the opening (201) is provided with a first inclined guide surface (2041), which is in sliding engagement with the signal receiving body (1).

9. The housing assembly according to claim 7 or 8, characterized in that, The housing (200) is provided with a mounting groove (205), and the opening (201) is provided at the bottom of the mounting groove (205); the second snap-fit ​​member (202) protrudes from the groove wall of the mounting groove (205) and is located near the opening of the mounting groove (205).

10. The housing assembly according to claim 7 or 8, characterized in that, A limiting rib (206) protrudes from the housing (200) along the axial direction of the opening (201), and the limiting rib (206) is disposed on the side of the opening (201); the first end face (11) abuts against the limiting rib (206).

11. The housing assembly according to claim 10, characterized in that, The limiting rib (206) has a second inclined guide surface (2061) on the side facing the opening (201), and the second inclined guide surface (2061) slides in cooperation with the signal receiving protrusion (2).

12. An electrical appliance, characterized in that, include: Signal receiver head (300); The housing assembly according to any one of claims 7 to 11, wherein the signal receiver head (300) is connected to the housing (200), and the signal receiver (100) is disposed between the signal receiver head (300) and the housing (200).

13. The electrical equipment according to claim 12, characterized in that, The electrical device is a fan cooler; And / or, the housing (200) includes a front housing, and the opening (201) is provided on the front housing; And / or, the housing (200) includes a lampshade, and the opening (201) is provided on the lampshade.

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