Front shell device and electric heater

Abstract

The invention relates to the technical field of electric heaters, and discloses a front shell device and an electric heater, the front shell device comprises a mask, a first mounting rack, a second mounting rack and a voice control assembly; the mask is used for being connected to a machine body of the electric heater, and a mounting cavity is defined by the mask and the machine body. The first mounting frame is arranged in the mounting cavity and is connected with the mask; the second mounting rack is arranged in the mounting cavity, is connected with the mask, and is spaced from the first mounting rack; the voice control assembly comprises a voice input structure and a voice output structure. The voice input structure is installed on the side, away from the machine body, of the first installation frame. The voice output structure is installed on the side, away from the machine body, of the second installation frame. According to the front shell device, the voice input structure and the voice output structure are connected to the position away from the machine body, the voice input structure and the voice output structure are protected, and the situation that heat dissipated by the machine body of the electric heater influences voice control assemblies such as the voice input structure and the voice output structure is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electric heaters, and in particular to a front shell device and an electric heater. Background Art

[0002] Oil heaters, a type of electric heater with good heating effect and convenient heating, are now increasingly used. Since electric heaters are mainly used in cold winter and mainly at night in winter, in order to avoid users getting up at night to operate the electric heater, electric heaters with offline voice control functions are becoming more and more popular in the market. Voice control functions are usually implemented by components such as speakers and microphones.

[0003] However, since voice control components such as speakers and microphones are electrical parts, the heat emitted by the electric heater may affect the voice control components. Summary of the invention

[0004] In view of this, the present invention provides a front housing device and an electric heater to solve the problem that the heat emitted by the electric heater affects the voice control component.

[0005] In a first aspect, the present invention provides a front housing device, comprising:

[0006] The mask is used to be connected to the body of the electric heater and to form a mounting cavity with the body;

[0007] A first mounting frame, disposed in the mounting cavity and connected to the mask;

[0008] A second mounting frame, disposed in the mounting cavity, connected to the mask, and spaced apart from the first mounting frame;

[0009] The voice control component comprises a voice input structure and a voice output structure, wherein the voice input structure is mounted on the first mounting frame at a side away from the fuselage; and the voice output structure is mounted on the second mounting frame at a side away from the fuselage.

[0010] Beneficial effects: The voice input structure is connected to a position away from the fuselage through the first mounting bracket, and the voice output structure is connected to a position away from the fuselage through the second mounting bracket, so that the voice input structure and the voice output structure are protected, and the heat emitted from the fuselage of the electric heater is prevented from affecting the voice control components such as the voice input structure and the voice output structure, thereby ensuring the temperature resistance of the voice input structure and the voice output structure; the voice input structure and the voice output structure can be installed separately and spaced apart by the first mounting bracket and the second mounting bracket, thereby reducing crosstalk between the voice input structure and the voice output structure and simultaneously meeting EMC (electromagnetic compatibility) test requirements.

[0011] In an optional embodiment, a first mounting slot is provided on the first mounting frame, a slot opening of the first mounting slot is arranged on a side away from the body, and the voice input structure is installed in the first mounting slot.

[0012] Beneficial effect: A first mounting groove is provided on the first mounting frame, which can facilitate the installation and disassembly of the voice input structure; and the notch of the first mounting groove is set on the side away from the fuselage, which can prevent the heat emitted by the fuselage of the electric heater from affecting the voice input structure. The groove wall and groove bottom of the first mounting groove and the mask form a relatively closed installation space to improve the temperature transfer around the voice input structure, reduce the peripheral temperature of the voice input structure, and enhance the temperature resistance of the voice input structure.

[0013] In an optional embodiment, at least two first limiting ribs are protruding from the groove wall of the first mounting groove, and the first limiting ribs extend along the groove depth direction of the first mounting groove. At least two of the first limiting ribs are distributed at intervals along the circumference of the voice input structure, and the voice input structure is in limiting contact with the first limiting ribs.

[0014] Beneficial effect: The voice input structure is in limited contact with the first limiting rib, realizing an interference fit between the voice input structure and the first mounting groove, which can ensure that the voice input structure is firmly installed in the first mounting groove, and prevent the voice input structure from being skewed or falling. In addition, the first limiting rib extending along the groove depth direction of the first mounting groove can also guide the installation of the voice input structure, and also reduce the contact area between the voice input structure and the first mounting groove, reduce friction and reduce noise. Furthermore, through the provision of the first limiting rib, it is also possible to avoid surface contact between the voice input structure and the groove wall of the first mounting groove, and avoid the impact on the assembly of the two when at least one of the voice input structure and the first mounting groove has a production error.

[0015] In an optional embodiment, a wire groove is further provided on the groove wall of the first installation groove, and the wire groove extends along the groove depth direction of the first installation groove.

[0016] Beneficial effects: The arrangement of the wire trough can facilitate wiring, reduce material usage, improve product hardness, and allow the first mounting groove to have a certain degree of elasticity, thereby facilitating the assembly of the voice input structure and providing a better fixing effect after assembly.

[0017] In an optional implementation, the voice input structure is arranged to protrude from a notch of the first installation slot.

[0018] Beneficial effect: The mask includes a first cover wall away from the fuselage, and the voice input structure protrudes from the slot of the first mounting slot. During the installation of the first mounting frame and the mask, when the first mounting frame abuts against the first cover wall, it can be ensured that the voice input structure abuts against the first cover wall first.

[0019] In an optional embodiment, the mask includes a first cover wall and a second cover wall, and the two sides of the first cover wall are connected to the body through two second cover walls respectively; a first through hole is provided on the first cover wall, and the first through hole is arranged corresponding to the voice input structure.

[0020] Beneficial effect: The setting of the first through hole can not only realize the sound transmission of the voice input structure, but also reduce the stamping time of the mask mold, so that the product molding time is shortened. The first through hole should not be too large to prevent dust from falling into the voice input structure and affecting the sound quality.

[0021] In an optional embodiment, the front shell device also includes a tilt switch bracket, which is connected to the mask and located between the first mounting frame and the body; one side of the first mounting frame is connected to the tilt switch bracket, and the other side is connected to the voice input structure.

[0022] Beneficial effect: The first mounting frame is connected to the tipping switch bracket, and the voice input structure is connected to the mask through the tipping switch bracket, which can not only simplify the connection of the first mounting frame, but also directly connect with the tipping switch bracket on the original front shell device, avoiding modification of the front shell device and reducing parts.

[0023] In an optional embodiment, the front shell device further includes a first fixing bar, and the first fixing bar is connected between one side of the first mounting frame and the tipping switch bracket.

[0024] Beneficial effect: Through the setting of the first fixing strip, the first mounting frame can be extended on the side of the first mounting frame facing the fuselage to ensure that the first mounting frame can be connected to the tilting switch bracket through the first fixing strip, thereby increasing the distance between the voice input structure and the fuselage, and further preventing the heat emitted by the fuselage from affecting the voice input structure.

[0025] In an optional embodiment, a second mounting slot is provided on the second mounting frame, and a slot opening of the second mounting slot is arranged on a side away from the fuselage.

[0026] Beneficial effect: A second mounting groove is provided on the second mounting frame, which can facilitate the installation and disassembly of the voice output structure; and the groove opening of the second mounting groove is arranged on the side away from the fuselage, and the groove wall and groove bottom of the second mounting groove form a relatively closed installation space with the mask to improve the temperature transfer around the voice output structure, reduce the peripheral temperature of the voice output structure, and enhance the temperature resistance of the voice output structure.

[0027] In an optional embodiment, at least two second limiting ribs are protruding from the groove wall of the second mounting groove, and the second limiting ribs extend along the groove depth direction of the second mounting groove. At least two second limiting ribs are distributed at intervals along the circumference of the voice output structure, and at least two opposite sides of the voice output structure are respectively abutted against corresponding second limiting ribs.

[0028] Beneficial effects: At least two second limiting ribs are distributed at intervals along the circumference of the voice output structure, and the voice output structure can be limited and fixed in the circumferential direction; at least two opposite sides of the voice output structure are respectively in contact with the corresponding second limiting ribs, which can achieve an interference fit between the voice output structure and the second mounting groove, ensuring that the voice output structure is firmly installed in the second mounting groove, and avoiding the voice output structure from being skewed or falling. In addition, the second limiting rib extending along the groove depth direction of the second mounting groove can also guide the installation of the voice output structure, and also reduce the contact area between the voice output structure and the second mounting groove, reduce friction and reduce noise, and avoid the impact of production errors on the assembly between the voice output structure and the second mounting groove.

[0029] In an optional implementation, the voice output structure is arranged to protrude from a notch of the second installation slot.

[0030] Beneficial effect: The mask includes a first cover wall away from the fuselage, and the voice output structure protrudes from the slot of the second mounting slot. During the installation of the second mounting frame and the mask, when the front end of the second mounting frame abuts against the first cover wall, it is ensured that the voice output structure abuts against the first cover wall first.

[0031] In an optional embodiment, the mask includes a first cover wall and a second cover wall, and the two sides of the first cover wall are connected to the body through two second cover walls respectively; at least two second through holes are provided on the first cover wall, and at least two of the second through holes are spaced apart and arranged corresponding to the voice output structure.

[0032] Beneficial effect: The second through hole can realize the sound transmission of the voice output structure, and can also reduce the stamping time of the mask mold, so that the product molding time is shortened. The second through hole should not be too large to prevent dust from falling into the voice output structure and affecting the sound quality.

[0033] In an optional embodiment, the face mask includes a first cover wall and a second cover wall, and the two sides of the first cover wall are respectively connected to the fuselage through two second cover walls; the front shell device also includes a second fixing strip, and the two sides of the second fixing strip are respectively fixedly connected to the two second cover walls; one end of the second mounting frame is detachably connected to the side of the second fixing strip facing away from the fuselage, and the other end is abutted against the first cover wall.

[0034] Beneficial effect: By setting the second fixing strip, the second mounting frame can be detachably connected to the side away from the fuselage, and the second mounting frame and the fuselage can be spaced apart, so that the second mounting frame and the voice output structure can be easily abutted against the first cover wall, thereby enhancing the effect of the voice output; the strength of the mask can be increased, and the second mounting frame and the voice output structure can be easily installed and disassembled.

[0035] In an optional embodiment, the second fixing bar is provided with a first connecting hole; and the second mounting frame comprises:

[0036] The frame body is provided with the second mounting groove;

[0037] A connecting ear has one end connected to the frame body and the other end provided with a second connecting hole; the first connecting hole and the second connecting hole are detachably connected by a fastener.

[0038] Beneficial effect: the connecting ear can increase the distance between the second mounting frame and the second fixing strip, thereby increasing the distance between the voice output structure and the body of the electric heater; and can also be easily detachably connected to the second fixing strip.

[0039] In an optional embodiment, the front shell device also includes a main board, a panel assembly and a base, the base is connected to the bottom of the mask, the main board is connected to the base, the panel assembly is connected to the top of the mask, and the first mounting frame and the second mounting frame are spaced apart between the panel assembly and the main board.

[0040] In a second aspect, the present invention further provides an electric heater, comprising a body and the above-mentioned front shell device. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related technologies, the drawings required for use in the specific embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1An exploded view of the installation of a front shell device according to an embodiment of the present invention;

[0043] Figure 2 for Figure 1 A is a partial enlarged schematic diagram;

[0044] Figure 3 for Figure 1 A partial enlarged schematic diagram of B in the middle;

[0045] Figure 4 It is an exploded view of the installation of the first mounting bracket and the dump switch bracket according to the embodiment of the present invention;

[0046] Figure 5 An exploded view of the installation of a second mounting bracket and a second fixing bar according to an embodiment of the present invention;

[0047] Figure 6 is a cross-sectional view of a front housing device according to an embodiment of the present invention;

[0048] Figure 7 for Figure 6 A partial enlarged schematic diagram of C in the middle;

[0049] Figure 8 for Figure 6 A partial enlarged schematic diagram of middle F;

[0050] Fig. 9 It is an installation explosion view of the voice input structure and the first mounting bracket of an embodiment of the present invention;

[0051] Fig.10 A schematic diagram of a first mounting frame (after installing a voice input structure) of an embodiment of the present invention from one viewing angle;

[0052] Fig.11 A schematic diagram of another viewing angle of the first mounting frame (after installing the voice input structure) of an embodiment of the present invention;

[0053] Fig.12 A schematic diagram of another viewing angle of the first mounting frame (after the voice input structure is installed) of an embodiment of the present invention;

[0054] Fig.13 An exploded view of the voice output structure and the second mounting bracket of an embodiment of the present invention;

[0055] Fig.14 A schematic diagram of a second mounting frame (after installing a voice output structure) of an embodiment of the present invention from one viewing angle;

[0056] Fig.15 A schematic diagram of another viewing angle of the second mounting frame (after the voice output structure is installed) of an embodiment of the present invention;

[0057] Fig.16 A schematic diagram of another viewing angle of the second mounting frame (after the voice output structure is installed) of an embodiment of the present invention;

[0058] Fig.17 A schematic diagram of a front housing device according to an embodiment of the present invention from a viewing angle;

[0059] Fig.18 A schematic diagram of a front housing device according to an embodiment of the present invention from another viewing angle;

[0060] Fig.19 is a schematic diagram of an electric heater according to an embodiment of the present invention;

[0061] Fig. 20 This is an exploded view of the installation of an electric heater according to an embodiment of the present invention.

[0062] Description of reference numerals:

[0063] 1. mask; 11. first cover wall; 12. second cover wall; 13. first through hole; 14. second through hole; 15. heat dissipation hole;

[0064] 2. first mounting frame; 21. first mounting slot; 22. first limiting rib; 23. wire slot;

[0065] 3. Second mounting frame; 31. Second mounting slot; 32. Second limiting rib; 33. Frame body; 34. Connecting ear; 35. Second connecting hole; 36. Wiring hole;

[0066] 4. Voice input structure; 41. First connection line; 5. Voice output structure; 51. Second connection line;

[0067] 6. Dump switch bracket; 61. Screw hole; 7. First fixing strip; 71. Mounting hole;

[0068] 8. second fixing strip; 81. first connecting hole;

[0069] 9. Mainboard; 10. Panel assembly; 20. Base; 30. Top cover;

[0070] 100. front shell device; 200. fuselage; 300. tripod assembly. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0072] Combine the following Figures 1 to 20 , describing an embodiment of the present invention.

[0073] According to an embodiment of the present invention, on the one hand, a front shell device 100 is provided, including a mask 1, a first mounting frame 2, a second mounting frame 3 and a voice control component; the mask 1 is used to be connected to the body 200 of the electric heater, and forms a mounting cavity with the body 200; the first mounting frame 2 is arranged in the mounting cavity and connected to the mask 1; the second mounting frame 3 is arranged in the mounting cavity, connected to the mask 1, and spaced apart from the first mounting frame 2; the voice control component includes a voice input structure 4 and a voice output structure 5, the voice input structure 4 is installed on the side of the first mounting frame 2 away from the body 200; the voice output structure 5 is installed on the side of the second mounting frame 3 away from the body 200.

[0074] The voice input structure 4 is connected to a position away from the fuselage 200 through the first mounting frame 2, and the voice output structure 5 is connected to a position away from the fuselage 200 through the second mounting frame 3, so as to protect the voice input structure 4 and the voice output structure 5, avoid the heat emitted from the fuselage 200 of the electric heater from affecting the voice control components such as the voice input structure 4 and the voice output structure 5, and ensure the temperature resistance of the voice input structure 4 and the voice output structure 5; the voice input structure 4 and the voice output structure 5 can be installed separately by the first mounting frame 2 and the second mounting frame 3, and the two can be spaced apart, so as to reduce the crosstalk between the voice input structure 4 and the voice output structure 5, and simultaneously meet the EMC (electromagnetic compatibility) test requirements.

[0075] In a specific embodiment, the voice input structure 4 can be a microphone, and the voice output structure 5 can be a speaker. The voice input structure 4 is used to receive the user's voice information and transmit the voice information to the mainboard 9. The voice output structure 5 is used to convey the voice information transmitted by the mainboard 9 to the user.

[0076] In one embodiment, a first mounting slot 21 is disposed on the first mounting frame 2 , a slot opening of the first mounting slot 21 is disposed on a side away from the body 200 , and the voice input structure 4 is installed in the first mounting slot 21 .

[0077] A first mounting groove 21 is provided on the first mounting frame 2, which can facilitate the installation and disassembly of the voice input structure 4; and the groove opening of the first mounting groove 21 is set on the side away from the fuselage 200, which can prevent the heat emitted by the fuselage 200 of the electric heater from affecting the voice input structure 4. The groove wall and groove bottom of the first mounting groove 21 and the mask 1 form a relatively closed installation space to improve the temperature transfer around the voice input structure 4, reduce the peripheral temperature of the voice input structure 4, and enhance the temperature resistance of the voice input structure 4.

[0078] In one embodiment, at least two first limiting ribs 22 are protruding from the groove wall of the first mounting groove 21, and the first limiting ribs 22 extend along the groove depth direction of the first mounting groove 21. At least two first limiting ribs 22 are distributed at intervals along the circumference of the voice input structure 4, and the voice input structure 4 is limitedly abutted against the first limiting ribs 22.

[0079] The voice input structure 4 is in limited contact with the first limiting rib 22, realizing an interference fit between the voice input structure 4 and the first mounting groove 21, which can ensure that the voice input structure 4 is firmly installed in the first mounting groove 21, and prevent the voice input structure 4 from being skewed or falling. In addition, the first limiting rib 22 extending along the groove depth direction of the first mounting groove 21 can also guide the installation of the voice input structure 4, and also reduce the contact area between the voice input structure 4 and the first mounting groove 21, reduce friction and reduce noise. Furthermore, through the provision of the first limiting rib 22, it is also possible to avoid surface contact between the voice input structure 4 and the groove wall of the first mounting groove 21, and avoid the impact of production errors on the assembly between the voice input structure 4 and the first mounting groove 21.

[0080] In a specific embodiment, the shape of the first installation groove 21 matches the shape of the voice input structure 4 .

[0081] In a further embodiment, the voice input structure 4 includes a voice input body and an input shell, the voice input body is arranged in the input shell, the input shell is a closed shell, and a sound input hole is arranged at the front end of the input shell. After the voice input structure 4 is connected to the first mounting groove 21, the front end of the input shell is located at the notch of the first mounting groove 21, and the input shell can provide a relatively closed installation space for the voice input body to improve the temperature transfer around the voice input body, reduce the peripheral temperature of the voice input body, and improve the temperature resistance of the voice input body. Preferably, the first mounting groove 21 is a circular groove, and the input shell is a circular shell.

[0082] In one embodiment, a wire groove 23 is further provided on the groove wall of the first installation groove 21 , and the wire groove 23 extends along the groove depth direction of the first installation groove 21 .

[0083] By setting the wire groove 23, it is not only convenient to route the first connecting wire 41 of the voice input structure 4, but also can reduce the material consumption, improve the hardness of the product, realize the fool-proof assembly of the voice input structure 4, and also can make the first mounting groove 21 have a certain elasticity, which is convenient for the assembly of the voice input structure 4 and also convenient for having a better fixing effect after assembly.

[0084] In a specific embodiment, there are at least two wire grooves 23, and the at least two wire grooves 23 are distributed circumferentially around the first installation groove 21, preferably evenly distributed. The groove wall of the first installation groove 21 is divided into at least three groove sections by the wire grooves 23, and each groove section is provided with at least one first limiting rib 22.

[0085] In a further embodiment, the wire groove 23 extends from the groove opening of the first installation groove 21 to the groove bottom.

[0086] In one embodiment, the voice input structure 4 is arranged to protrude from a notch of the first installation slot 21 .

[0087] The mask 1 includes a first cover wall 11 away from the body 200, and the voice input structure 4 is protruding from the slot of the first mounting slot 21. During the installation of the first mounting frame 2 and the mask 1, when the first mounting frame 2 abuts against the first cover wall 11, it can be ensured that the voice input structure 4 abuts against the first cover wall 11 first.

[0088] In a further embodiment, the distance D of the voice input structure 4 protruding from the slot of the first mounting slot 21 satisfies 2mm≤D≤3mm. This ensures that the voice input structure 4 is first in contact with the first cover wall 11 when the first mounting frame 2 abuts against the first cover wall 11 during the installation of the first mounting frame 2 and the mask 1. The smaller distance D can also prevent the voice input structure 4 from being detached from or falling off the first mounting slot 21.

[0089] In a specific embodiment, the distance D that the voice input structure 4 protrudes from the notch of the first installation groove 21 can be 2 mm, 3 mm, or 2.5 mm.

[0090] In one embodiment, the mask 1 includes a first cover wall 11 and a second cover wall 12, and the two sides of the first cover wall 11 are connected to the fuselage 200 through two second cover walls 12 respectively; a first through hole 13 is provided on the first cover wall 11, and the first through hole 13 is arranged corresponding to the voice input structure 4.

[0091] The first through hole 13 can realize the sound transmission of the voice input structure 4, and can also reduce the stamping time of the mask 1 mold, so that the product molding time is shortened. The first through hole 13 should not be too large to prevent dust from falling into the voice input structure 4 and affecting the sound quality.

[0092] In a specific embodiment, the first through hole 13 can be a round hole, and the diameter of the first through hole 13 is between 4 mm and 6 mm. Specifically, the diameter of the first through hole 13 can be 5 mm, 4 mm, or 6 mm.

[0093] In one embodiment, the front shell device 100 also includes a tilt switch bracket 6, which is connected to the mask 1 and located between the first mounting frame 2 and the body 200; one side of the first mounting frame 2 is connected to the tilt switch bracket 6, and the other side is connected to the voice input structure 4.

[0094] The first mounting frame 2 is connected to the tipping switch bracket 6, and the voice input structure 4 is connected to the mask 1 through the tipping switch bracket 6. This can not only simplify the connection of the first mounting frame 2, but also directly connect with the tipping switch bracket 6 on the original front shell device 100, avoiding modification of the front shell device 100 and reducing parts.

[0095] Specifically, the tipping switch is a switch structure that controls the power off of the whole machine when the whole machine tips over, and it is a protection function. The tipping switch is first installed on the tipping switch bracket 6 for the power off protection function of the whole machine tipping over. However, since the tipping switch does not work obviously, the tipping switch is installed on the base 20 through structural adjustment to ensure that the tipping switch works obviously after the prototype is slightly tilted. The original tipping switch bracket 6 does not need to be disassembled and can be directly used to install the first mounting bracket 2. The screw hole 61 on the tipping bracket switch can be used to install the tipping switch, and can now be used to install the first mounting bracket 2.

[0096] In one embodiment, the front housing device 100 further includes a first fixing bar 7 , and the first fixing bar 7 is connected between one side of the first mounting frame 2 and the tipping switch bracket 6 .

[0097] By setting the first fixing strip 7, the first mounting frame 2 can be extended on the side of the first mounting frame 2 facing the fuselage 200 to ensure that the first mounting frame 2 can be connected to the tipping switch bracket 6 through the first fixing strip 7, thereby increasing the distance between the voice input structure 4 and the fuselage 200, further preventing the heat emitted from the fuselage 200 from affecting the voice input structure 4, and ensuring that the voice input structure 4 and the first cover wall 11 of the mask 1 away from the fuselage 200 can be tightly attached to ensure the accuracy of the corresponding sound reception effect.

[0098] In a specific embodiment, a mounting hole 71 is provided on the first fixing bar 7, and a screw hole 61 originally used to connect the tipping switch is provided on the tipping switch bracket 6, and the screw hole 61 and the mounting hole 71 are detachably connected by fasteners such as screws or bolts. When the voice input structure 4 is installed, since the voice input structure 4 is a small component and is not easy to fall off, the first mounting bracket is pre-installed and fixed to the tipping switch bracket 6 through the first fixing bar 7, and then the tipping switch bracket 6 is welded to the mask 1 to achieve the first fixing bar 7 to suppress the voice input structure 4.

[0099] In one embodiment, a second mounting slot 31 is disposed on the second mounting frame 3 , and a slot opening of the second mounting slot 31 is disposed on a side away from the fuselage 200 .

[0100] A second mounting groove 31 is provided on the second mounting frame 3, which can facilitate the installation and disassembly of the voice output structure 5; and the groove opening of the second mounting groove 31 is set on the side away from the fuselage 200, and the groove wall and groove bottom of the second mounting groove 31 and the mask 1 form a relatively closed installation space to improve the temperature transfer around the voice output structure 5, reduce the peripheral temperature of the voice output structure 5, and enhance the temperature resistance of the voice output structure 5.

[0101] In a specific embodiment, a wiring hole 36 is provided on the groove wall of the second mounting groove 31. The wiring hole 36 is convenient for the routing of the second connecting wire 51 of the voice output structure 5, reduces the material usage, improves the hardness of the product, realizes the fool-proof assembly of the voice output structure 5, and allows the second mounting groove 31 to have a certain elasticity, which is convenient for the assembly of the voice output structure 5 and has a better fixing effect after assembly.

[0102] In one embodiment, at least two second limiting ribs 32 are protruding from the groove wall of the second mounting groove 31, and the second limiting ribs 32 extend along the groove depth direction of the second mounting groove 31. At least two second limiting ribs 32 are distributed at intervals along the circumference of the voice output structure 5, and at least two opposite sides of the voice output structure 5 are respectively abutted against the corresponding second limiting ribs 32.

[0103] At least two second limiting ribs 32 are distributed at intervals along the circumference of the voice output structure 5, and the voice output structure 5 can be limited and fixed in the circumferential direction; at least two opposite sides of the voice output structure 5 are respectively in contact with the corresponding second limiting ribs 32, which can achieve an interference fit between the voice output structure 5 and the second mounting groove 31, ensuring that the voice output structure 5 is firmly installed in the second mounting groove 31, and preventing the voice output structure 5 from being skewed or falling. In addition, the second limiting rib 32 extending along the groove depth direction of the second mounting groove 31 can also guide the installation of the voice output structure 5, and also reduce the contact area between the voice output structure 5 and the second mounting groove 31, reduce friction and reduce noise, and avoid the impact of production errors on the assembly between the voice output structure 5 and the second mounting groove 31.

[0104] In a specific embodiment, the shape of the second installation groove 31 matches the shape of the voice output structure 5 .

[0105] In a further embodiment, the voice output structure 5 includes a voice output body and an output shell. The voice output body is arranged in the output shell. The output shell is a closed shell. The front end of the output shell is provided with a sound output hole. After the voice output structure 5 is connected to the second mounting groove 31, the front end of the output shell is located at the notch of the second mounting groove 31. The output shell can provide a relatively closed installation space for the voice output body to improve the temperature transfer around the voice output body, reduce the peripheral temperature of the voice output body, and improve the temperature resistance of the voice output body.

[0106] In a preferred embodiment, the second mounting groove 31 is a rectangular groove, and the output housing is a rectangular body-shaped housing. At least two second limiting ribs 32 are provided on the four groove walls of the rectangular groove, and preferably four second limiting ribs 32 are provided on each groove wall. The output housing includes a first housing and a second housing, the first housing is provided with a first buckle on both sides of the horizontal direction, and the second housing is provided with a second buckle on both sides of the horizontal direction, the first housing and the second housing are butted, and the first buckle and the second buckle are clamped. Among them, a sound output hole is provided on the first housing, and an extension rib is protruded at both ends of the first buckle, and the extension rib abuts against the corresponding second limiting rib 32.

[0107] In a specific embodiment, in the direction away from the bottom of the second installation groove 31 , the height of the second limiting rib 32 protruding from the groove wall of the second installation groove 31 gradually decreases, so that the second limiting rib 32 can be guided during the installation of the voice output structure 5 .

[0108] In one embodiment, the voice output structure 5 is arranged to protrude from a notch of the second installation slot 31 .

[0109] The mask 1 includes a first cover wall 11 away from the body 200, and the voice output structure 5 protrudes from the slot of the second mounting slot 31. During the installation of the second mounting frame 3 and the mask 1, when the front end of the second mounting frame 3 abuts against the first cover wall 11, it can be ensured that the voice output structure 5 abuts against the first cover wall 11 first.

[0110] In a further embodiment, the distance d that the voice output structure 5 protrudes from the slot of the second mounting slot 31 satisfies 2mm≤d≤3mm. This ensures that the voice output structure 5 first abuts against the first cover wall 11 when the second mounting frame 3 abuts against the first cover wall 11 during the installation of the second mounting frame 3 and the mask 1. The smaller distance d can also prevent the voice output structure 5 from detaching or falling from the second mounting slot 31.

[0111] In a specific embodiment, the distance d that the voice output structure 5 protrudes from the notch of the second installation groove 31 can be 2 mm, 3 mm, or 2.5 mm.

[0112] In one embodiment, the mask 1 includes a first cover wall 11 and a second cover wall 12, and the two sides of the first cover wall 11 are connected to the fuselage 200 through two second cover walls 12 respectively; at least two second through holes 14 are provided on the first cover wall 11, and at least two of the second through holes 14 are arranged at intervals and corresponding to the voice output structure 5.

[0113] The second through hole 14 can realize the sound transmission of the voice output structure 5 and reduce the stamping time of the mask 1 mold, thereby shortening the product molding time. The second through hole 14 should not be too large to prevent dust from falling into the voice output structure 5 and affecting the sound quality.

[0114] In a specific embodiment, the diameter of the second through hole 14 is between 2 mm and 3 mm. Preferably, the diameter of the second through hole 14 is 3 mm.

[0115] In one embodiment, the mask 1 includes a first cover wall 11 and a second cover wall 12, and the two sides of the first cover wall 11 are respectively connected to the fuselage 200 through two second cover walls 12; the front shell device 100 also includes a second fixing strip 8, and the two sides of the second fixing strip 8 are respectively fixedly connected to the two second cover walls 12; one end of the second mounting frame 3 is detachably connected to the side of the second fixing strip 8 facing away from the fuselage 200, and the other end is abutted against the first cover wall 11.

[0116] By setting the second fixing strip 8, the second mounting frame 3 can be detachably connected to the side away from the fuselage 200, and the second mounting frame 3 and the fuselage 200 can be spaced apart, so that the second mounting frame 3 and the voice output structure 5 can be easily abutted against the first cover wall 11, thereby enhancing the effect of the voice output; the strength of the mask 1 can be increased, and the second mounting frame 3 and the voice output structure 5 can be easily installed and disassembled.

[0117] In a specific embodiment, the second fixing bar 8 can be welded to the two second cover walls 12, or can be detachably connected to the two second cover walls 12 by means of screws or other structures. In a preferred embodiment, the second fixing bar 8 can be welded to the two second cover walls 12.

[0118] In one embodiment, the second fixing bar 8 is provided with a first connecting hole 81; the second mounting frame 3 includes a frame body 33 and a connecting ear 34; the frame body 33 is provided with the second mounting groove 31; one end of the connecting ear 34 is connected to the frame body 33, and the other end is provided with a second connecting hole 35; the first connecting hole 81 and the second connecting hole 35 are detachably connected by fasteners.

[0119] The connecting ear 34 can increase the distance between the second mounting frame 3 and the second fixing bar 8, thereby increasing the distance between the voice output structure 5 and the body 200 of the electric heater; and can also facilitate detachable connection with the second fixing bar 8.

[0120] In a specific embodiment, the frame body 33 may include a rectangular body portion, and the second mounting groove 31 is provided on the body portion. There are two connecting ears 34, which are respectively connected to both sides of the frame body 33 in the horizontal direction; the connecting ears 34 include a first connecting plate, a second connecting plate and a reinforcing rib plate, one end of the first connecting plate is connected to the end surface of the frame body 33 facing the fuselage 200, one end of the second connecting plate is connected to the other end of the first connecting plate, and the other end of the second connecting plate extends to the outside of the frame body 33, and the second connecting hole 35 is provided on the second connecting plate to facilitate connection with the second fixing bar 8; the reinforcing rib plate is a triangular rib plate, which is fixedly connected to both the first connecting plate and the frame body 33. The fastener may be a threaded fastener such as a screw or a bolt.

[0121] In a preferred embodiment, the second mounting bracket 3 can be integrally injection molded.

[0122] In one embodiment, the front shell device 100 also includes a main board 9, a panel assembly 10 and a base 20, the base 20 is connected to the bottom of the mask 1, the main board 9 is connected to the base 20, the panel assembly 10 is connected to the top of the mask 1, and the first mounting frame 2 and the second mounting frame 3 are spaced apart between the panel assembly 10 and the main board 9.

[0123] The first mounting frame 2 and the second mounting frame 3 are spaced apart between the panel assembly 10 and the main board 9, which is convenient for connection with the main board 9 and can meet the EMC test requirements.

[0124] Preferably, the first mounting frame 2 is arranged between the second mounting frame 3 and the main board 9 at intervals.

[0125] In a specific embodiment, the front shell device 100 also includes a top cover 30, which is connected to the top of the mask 1 to protect the mask 1 and prevent dust or water from entering the installation cavity. The panel assembly 10 is connected at a position close to the top cover 30 and is located at the front end of the mask 1, so that the electric heater can be controlled and operated through the panel assembly 10. An assembly hole is provided on the first cover wall 11 of the mask 1, and the panel assembly 10 is connected at the assembly hole, which can be distanced from the body 200 of the electric heater to prevent the heat emitted from the body 200 of the electric heater from affecting the panel assembly 10. A plurality of heat dissipation holes 15 are provided on the second cover wall 12 of the mask 1, and the plurality of heat dissipation holes 15 are arranged at intervals along the height direction of the second cover wall 12 to facilitate the discharge of heat in the installation cavity.

[0126] According to an embodiment of the present invention, on the other hand, there is provided an electric heater, comprising a body 200 and the above-mentioned front casing device 100 .

[0127] In a preferred embodiment, the electric heater is an oil heater, and the body 200 is the oil heater body. The electric heater further includes a stand assembly 300 connected to the bottom of the oil heater body.

[0128] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present application.

Claims

1. A front shell device, characterized in that: include: A mask (1) is used to be connected to a body (200) of the electric heater and to form a mounting cavity with the body (200); A first mounting frame (2), arranged in the mounting cavity and connected to the mask (1); A second mounting frame (3) is arranged in the mounting cavity, connected to the mask (1), and spaced apart from the first mounting frame (2); A voice control component comprises a voice input structure (4) and a voice output structure (5), wherein the voice input structure (4) is mounted on a side of the first mounting frame (2) away from the fuselage (200); and the voice output structure (5) is mounted on a side of the second mounting frame (3) away from the fuselage (200).

2. The front shell device according to claim 1, characterized in that: The first mounting frame (2) is provided with a first mounting groove (21), the notch of the first mounting groove (21) is arranged on a side away from the body (200), and the voice input structure (4) is installed in the first mounting groove (21).

3. The front shell device according to claim 2, characterized in that: At least two first limiting ribs (22) are protruding from the groove wall of the first installation groove (21), the first limiting ribs (22) extending along the groove depth direction of the first installation groove (21), at least two first limiting ribs (22) are distributed at intervals along the circumference of the voice input structure (4), and the voice input structure (4) is in limiting contact with the first limiting ribs (22); And / or, a wire groove (23) is further provided on the groove wall of the first installation groove (21), and the wire groove (23) extends along the groove depth direction of the first installation groove (21); And / or, the voice input structure (4) is arranged to protrude from a notch of the first mounting groove (21); And / or, the mask (1) comprises a first cover wall (11) and a second cover wall (12), the two sides of the first cover wall (11) are connected to the body (200) via two second cover walls (12) respectively; the first cover wall (11) is provided with a first through hole (13), and the first through hole (13) is arranged corresponding to the voice input structure (4).

4. The front shell device according to any one of claims 1 to 3, characterized in that: The front shell device (100) also includes a tilt switch bracket (6), which is connected to the mask (1) and is located between the first mounting frame (2) and the body (200); one side of the first mounting frame (2) is connected to the tilt switch bracket (6), and the other side is connected to the voice input structure (4).

5. The front housing device according to claim 4, characterized in that: The front shell device (100) further comprises a first fixing strip (7), wherein the first fixing strip (7) is connected between one side of the first mounting frame (2) and the tipping switch bracket (6).

6. The front housing device according to claim 1, characterized in that: The second mounting frame (3) is provided with a second mounting groove (31), and the notch of the second mounting groove (31) is arranged on a side away from the fuselage (200).

7. The front housing device according to claim 6, characterized in that: At least two second limiting ribs (32) are protruding from the groove wall of the second installation groove (31), the second limiting ribs (32) extend along the groove depth direction of the second installation groove (31), at least two second limiting ribs (32) are distributed at intervals along the circumference of the voice output structure (5), and at least two opposite sides of the voice output structure (5) are respectively in contact with corresponding second limiting ribs (32); And / or, the voice output structure (5) is arranged to protrude from a notch of the second mounting groove (31); And / or, the mask (1) comprises a first cover wall (11) and a second cover wall (12), the two sides of the first cover wall (11) are connected to the body (200) via two second cover walls (12) respectively; at least two second through holes (14) are provided on the first cover wall (11), and at least two of the second through holes (14) are arranged at intervals and are arranged corresponding to the voice output structure (5).

8. The front housing device according to claim 6, characterized in that: The mask (1) comprises a first cover wall (11) and a second cover wall (12), and the two sides of the first cover wall (11) are respectively connected to the fuselage (200) through two second cover walls (12); the front shell device (100) also comprises a second fixing strip (8), and the two sides of the second fixing strip (8) are respectively fixedly connected to the two second cover walls (12); one end of the second mounting frame (3) is detachably connected to the side of the second fixing strip (8) facing away from the fuselage (200), and the other end is in contact with the first cover wall (11).

9. The front housing device according to claim 8, characterized in that: The second fixing strip (8) is provided with a first connection hole (81); the second mounting frame (3) comprises: The frame body (33) is provided with the second mounting groove (31); A connecting ear (34) has one end connected to the frame body (33) and the other end provided with a second connecting hole (35); the first connecting hole (81) and the second connecting hole (35) are detachably connected via a fastener.

10. The front shell device according to any one of claims 1 to 3 or 5 to 9, characterized in that: The front shell device (100) also includes a main board (9), a panel assembly (10) and a base (20), wherein the base (20) is connected to the bottom of the mask (1), the main board (9) is connected to the base (20), the panel assembly (10) is connected to the top of the mask (1), and the first mounting frame (2) and the second mounting frame (3) are spaced apart between the panel assembly (10) and the main board (9).

11. An electric heater, characterized in that: It comprises a body (200) and the front casing device (100) according to any one of claims 1 to 10.

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