Front shell assembly and electric heater

Abstract

The present invention provides a front shell assembly and an electric heater. The front shell assembly includes a front shell component provided with an elastic stopper and a mesh cover provided with an elastic boss. The elastic boss is clamped with the elastic stopper to position the mesh cover on the front shell component. That is, the disassembly and assembly between the mesh cover and the front shell component is achieved by the cooperation between the elastic stopper and the elastic boss. Therefore, the clamping connection between the elastic stopper and the elastic boss makes the disassembly and assembly between the mesh cover and the front shell component more convenient. The front shell assembly is applied to a heater to solve the problem that the disassembly and assembly of the front shell assembly of the heater in the prior art is difficult, thereby improving the assembly efficiency of the front shell assembly.

Description

Technical Field

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

[0002] The heater is affordable and lightweight, and is very popular among young people. In recent years, the appearance color has become younger and more vibrant. However, the air outlet temperature of the heater is high, and the outlet generally uses a dark metal mesh cover. One of the reasons is that high-temperature baked metal has no odor, while plastic parts have a plastic smell when blown out; the second reason is that light colors are easily discolored and yellowed by high temperatures, affecting the appearance. In addition, because of national standards, the shell of the heater must be made of flame-retardant materials. The price of flame-retardant materials is much different from that of non-flame-retardant materials. How to make beautiful and affordable products is a great weapon to win the market.

[0003] At present, the mesh cover assembly structure of heaters on the market is relatively complicated. It is fixed to the front shell by twisting multiple lugs around it with needle-nosed pliers. However, the lugs are all mesh holes and are easy to break when twisting. This structure is difficult to disassemble and has low assembly efficiency. Summary of the invention

[0004] The main purpose of the present invention is to provide a front shell assembly and an electric heater to solve the problem that the front shell assembly of the heater in the prior art is difficult to disassemble and assemble.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a front shell assembly is provided, which is suitable for use in a heater. The front shell assembly includes: a front shell component, on which an elastic stopper is arranged; a mesh cover, on which an elastic boss is arranged, and the elastic boss is engaged with the elastic stopper to position the mesh cover on the front shell component.

[0006] Furthermore, the front shell component includes: a front shell body; a mesh cover bracket, the mesh cover bracket is detachably mounted on the front shell body, and the elastic stopper is arranged on the mesh cover bracket.

[0007] Furthermore, a latching tongue portion is provided on the elastic boss, and the latching tongue portion abuts against the elastic stopper.

[0008] Furthermore, the mesh cover comprises a mesh cover body, and the elastic boss is arranged on the mesh cover body and protrudes out of the mesh cover body.

[0009] Furthermore, the elastic boss includes a tongue body and a tongue portion arranged on the tongue body, one end of the tongue portion is connected to the tongue body, and the other end of the tongue portion is a free end.

[0010] Furthermore, the tongue body and the tongue portion are both plate-like structures, and the tongue portion is arranged obliquely to the tongue body; a folding cut is arranged on the tongue body, and the tongue portion is formed by folding the plate body surrounded by the folding cut toward the inside of the mesh cover.

[0011] Furthermore, the mesh cover bracket comprises a bracket body, the elastic stopper is arranged on the bracket body, elastic openings are opened on the mesh cover bracket, and the elastic stopper is located between two elastic openings.

[0012] Furthermore, a support rib group is provided on the mesh cover bracket, and the mesh cover bracket is in contact with the mesh cover through the support rib group.

[0013] Furthermore, the support rib group includes: a first support rib, which is arranged at the top of the mesh cover bracket; and / or, a second support rib, which is arranged at the bottom of the mesh cover bracket; and / or, a third support rib, a bracket air outlet is arranged on the mesh cover bracket, the third support rib is a ring-shaped structure, and the third support rib is arranged around the bracket air outlet.

[0014] Furthermore, a mounting groove is provided on the front shell body, and the mesh cover bracket and the mesh cover are both installed in the mounting groove.

[0015] Furthermore, an elastic buckle is provided on the mesh cover bracket, and a bayonet portion is provided on the front shell body, and the elastic buckle is engaged with the bayonet portion so that the mesh cover bracket is installed on the front shell body.

[0016] Furthermore, the bayonet portion has a bayonet for the elastic buckle to pass through and a clamping protrusion, and the elastic buckle has a hook portion, and the hook portion of the elastic buckle is clamped with the clamping protrusion after passing through the bayonet.

[0017] Furthermore, the bayonet portion includes an elastic sheet, and the elastic sheet and the snap-on protrusion are located on opposite sides of the bayonet; there is an elastic notch between at least part of the elastic sheet and the main body of the bayonet portion; or at least part of the elastic sheet protrudes from the main body of the bayonet portion, so that the elastic sheet has elasticity.

[0018] Furthermore, the bayonet portion also includes a guide rib, which is located on the inner wall of the elastic sheet. The guide rib has a guide slope for contacting the elastic buckle, and the guide slope is arranged obliquely to the inner wall surface of the elastic sheet; along the insertion direction of the elastic buckle, the guide slope gradually moves away from the inner wall surface of the elastic sheet.

[0019] Furthermore, the mesh cover bracket includes a bracket body, and the elastic buckle is arranged on the bracket body and protrudes from the bracket body.

[0020] Furthermore, the mesh cover is made of a flame retardant material, and the mesh cover bracket is made of a non-flame retardant material.

[0021] According to another aspect of the present invention, there is provided an electric heater, which comprises a heating element, the front shell assembly and the rear shell assembly mentioned above, wherein the heating element is arranged between the front shell assembly and the rear shell assembly.

[0022] By applying the technical solution of the present invention, the front shell assembly includes a front shell component provided with an elastic stop and a mesh cover provided with an elastic boss, the elastic boss is clamped with the elastic stop to position the mesh cover on the front shell component, that is, the disassembly and assembly between the mesh cover and the front shell component is achieved through the cooperation of the elastic stop and the elastic boss, so the clamping connection between the elastic stop and the elastic boss makes the disassembly and assembly between the mesh cover and the front shell component more convenient; the front shell assembly is applied to the heater to solve the problem that the disassembly and assembly of the front shell assembly of the heater in the prior art is difficult, thereby improving the assembly efficiency of the front shell assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 A schematic diagram of an exploded structure of an embodiment of a front shell assembly according to the present invention is shown;

[0025] Figure 2 Shows Figure 1 A schematic structural diagram of a perspective after the front shell assembly is assembled;

[0026] Figure 3 Shows Figure 1 A schematic structural diagram of another perspective after the front shell assembly is assembled;

[0027] Figure 4 Shows Figure 1 A schematic diagram of the structure of the front shell assembly after being assembled from a third viewing angle;

[0028] Figure 5 Shows Figure 4 An enlarged view of the D portion of the front shell assembly;

[0029] Figure 6 Shows Figure 1 A schematic structural diagram of a front shell body of a front shell assembly;

[0030] Figure 7 Shows Figure 1 A schematic structural diagram of a mesh support of a front shell assembly;

[0031] Figure 8 Shows Figure 7 An enlarged view of point A of the grille bracket of the front shell assembly;

[0032] Fig. 9 Shows Figure 7 An enlarged view of point B of the grille bracket of the front shell assembly;

[0033] Fig.10 Shows Figure 1 A schematic structural diagram of a mesh cover of a front shell assembly;

[0034] Fig.11 Shows Fig.10 An enlarged view of the mesh cover at position C of the front shell assembly;

[0035] Fig.12 Shows Fig.10 A top view of the mesh cover of the front shell assembly in FIG.

[0036] The above drawings include the following reference numerals:

[0037] 100, front shell assembly;

[0038] 10. Front shell body; 11. Installation groove;

[0039] 13. bayonet portion; 131. bayonet; 132. clamping protrusion; 133. elastic sheet; 134. guide rib; 135. guide slope;

[0040] 20. Net cover bracket; 21. Bracket body; 22. Elastic stopper; 221. Stopper main board; 223. Stopper flange;

[0041] 23. Elastic opening; 25. Bracket air outlet;

[0042] 24, support rib group; 241, first support rib; 242, second support rib; 243, third support rib;

[0043] 26, elastic buckle; 261, hook portion; 262, passing through the inclined surface; 263, snap-fit ​​surface;

[0044] 30. mesh cover; 31. mesh cover body;

[0045] 32. Elastic boss; 321. Tongue body; 322. Tongue portion; 323. Folding cutout. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] The present invention provides a front housing assembly 100, which is suitable for use in a heater. Figures 1 to 12The front shell assembly 100 includes a front shell component and a mesh cover 30, the front shell component is provided with an elastic stopper 22; the mesh cover 30 is provided with an elastic boss 32, the elastic boss 32 is engaged with the elastic stopper 22, so that the mesh cover 30 is positioned on the front shell component.

[0048] In the front shell assembly 100 of the present invention, the front shell assembly 100 includes a front shell component provided with an elastic stop 22 and a mesh cover 30 provided with an elastic boss 32. The elastic boss 32 is engaged with the elastic stop 22 to position the mesh cover 30 on the front shell component, that is, the disassembly and assembly between the mesh cover 30 and the front shell component is achieved through the cooperation of the elastic stop 22 and the elastic boss 32. Therefore, the engagement of the elastic stop 22 and the elastic boss 32 makes the disassembly and assembly between the mesh cover 30 and the front shell component more convenient. The front shell assembly 100 is applied to a heater to solve the problem of the difficulty in disassembly and assembly of the front shell assembly of the heater in the prior art, thereby improving the assembly efficiency of the front shell assembly.

[0049] In addition, during the assembly of the mesh cover of the heater in the prior art, it is usually necessary to bend the mesh cover to facilitate the installation of the mesh cover, while the front shell assembly 100 in the present application does not need to be bent during the reassembly process, and the mesh cover 30 and the front shell component can be quickly assembled through the cooperation between the elastic boss 32 and the elastic stop 22.

[0050] Specifically, the front shell component includes a front shell body 10 and a mesh cover bracket 20 , and the mesh cover bracket 20 is detachably mounted on the front shell body 10 , so that the disassembly and assembly between the mesh cover bracket 20 and the front shell body 10 is more convenient; the elastic stopper 22 is arranged on the mesh cover bracket 20 .

[0051] In order to achieve the cooperation between the elastic boss 32 and the elastic stopper 22, a tongue portion 322 is provided on the elastic boss 32, and the tongue portion 322 abuts against the elastic stopper 22; when the tongue portion 322 abuts against the elastic stopper 22, the elastic boss 32 is engaged with the elastic stopper 22. Specifically, at least a portion of the tongue portion 322 is located on a side of the elastic stopper 22 close to the front shell body 10.

[0052] Specifically, the mesh cover 30 includes a mesh cover body 31, and the elastic boss 32 is arranged on the mesh cover body 31 and protrudes from the mesh cover body 31. Optionally, the elastic boss 32 protrudes from the outer circumference or inner circumference of the mesh cover body 31.

[0053] Specifically, Fig.11 and Fig.12As shown, the elastic boss 32 includes a tongue body 321 and a tongue portion 322 arranged on the tongue body 321, one end of the tongue portion 322 is connected to the tongue body 321, and the other end of the tongue portion 322 is a free end; the tongue portion 322 is used to abut against the elastic stop 22, that is, the free end of the tongue portion 322 can move toward the direction close to the tongue body 321 or away from the tongue body 321, so as to move away from the elastic stop 22 or close to the elastic stop 22.

[0054] Specifically, the tongue body 321 and the tongue portion 322 are both plate-shaped structures, and the tongue portion 322 is arranged obliquely to the tongue body 321. Optionally, the angle between the tongue portion 322 and the tongue body 321 is 10° to 55°.

[0055] Optionally, a folding cutout 323 is provided on the tongue body 321 , and the tongue portion 322 is formed by folding the plate body portion surrounded by the folding cutout 323 toward the inner side of the mesh cover 30 , so that the processing of the elastic boss 32 is more convenient.

[0056] Specifically, Figure 7 and Figure 8 As shown, the mesh cover bracket 20 includes a bracket body 21 , an elastic stopper 22 is arranged on the bracket body 21 , elastic openings 23 are opened on the mesh cover bracket 20 , and the elastic stopper 22 is located between two elastic openings 23 .

[0057] When the tongue portion 322 abuts against the elastic stop 22, in order to ensure the clamping effect between the elastic boss 32 and the elastic stop 22, the elastic stop 22 is a plate structure, and the elastic stop 22 includes a stop main board 221 and a stop flange 223 arranged on the stop main board 221, so that the stop flange 223 forms a stopping effect on the tongue portion 322 abutting against the stop main board 221, so as to ensure that the tongue portion 322 is in contact with the stop main board 221, and prevent the tongue portion 322 from slipping off the stop main board 221.

[0058] Specifically, one end of the stopping main board 221 is fixed on the bracket body 21 , and the other end of the stopping main board 221 is a free end. The stopping flange 223 is disposed at the free end of the stopping main board 221 .

[0059] Optionally, the stop flange 223 extends along the edge of the free end of the stop main board 221 ; the stop flange 223 and the stop main board 221 are an integrally formed structure.

[0060] Alternatively, if Figure 7 and Fig.10As shown, there are multiple elastic bosses 32 and multiple elastic stops 22, and the multiple elastic bosses 32 and the multiple elastic stops 22 are arranged in a one-to-one correspondence; the multiple elastic bosses 32 are arranged at circumferential intervals around the mesh cover body 31, and the multiple elastic stops 22 are arranged at circumferential intervals around the bracket body 21, so that the assembly between the mesh cover 30 and the mesh cover bracket 20 is more stable, thereby ensuring the assembly effect between the mesh cover 30 and the mesh cover bracket 20.

[0061] In order to further ensure the assembly effect between the mesh cover 30 and the mesh cover bracket 20 , a support rib group 24 is provided on the mesh cover bracket 20 , and the mesh cover bracket 20 is in contact with the mesh cover 30 via the support rib group 24 .

[0062] Optionally, the support rib group 24 is arranged in the middle position of the bracket body 21; since multiple elastic bosses 32 are arranged at circumferential intervals around the mesh cover body 31, multiple elastic stops 22 are arranged at circumferential intervals around the bracket body 21, which ensures stable assembly between the edge of the mesh cover 30 and the edge of the mesh cover bracket 20; by arranging the support rib group 24 in the middle position of the bracket body 21, the mesh cover bracket 20 is in contact with the mesh cover 30 through the support rib group 24, so that the middle part of the mesh cover 30 and the middle part of the mesh cover bracket 20 are relatively fixed, thereby ensuring the stability between the overall structure of the mesh cover 30 and the overall structure of the mesh cover bracket 20.

[0063] Specifically, Figure 7 As shown, the support rib group 24 includes a first support rib 241 , and the first support rib 241 is arranged on the top of the mesh cover bracket 20 ; preferably, the first support rib 241 is located at the top of the middle position of the bracket body 21 .

[0064] Specifically, the support rib group 24 includes a second support rib 242 , and the second support rib 242 is disposed at the bottom of the mesh cover bracket 20 ; preferably, the second support rib 242 is located at the bottom of the middle position of the bracket body 21 .

[0065] Specifically, the support rib group 24 includes a third support rib 243, a support air outlet 25 is provided on the mesh cover support 20, the third support rib 243 is an annular structure, and the third support rib 243 is provided around the support air outlet 25. Optionally, the support air outlet 25 is located in the middle of the support body 21 and between the first support rib 241 and the second support rib 242.

[0066] It should be noted that the mesh cover bracket 20 can also cover various opening structures on the front shell body 10 to overcome the appearance defects of the front shell component and improve the aesthetics of the front shell component.

[0067] In order to realize the assembly between the mesh cover bracket 20 and the mesh cover 30 and the front shell body 10 , a mounting groove 11 is provided on the front shell body 10 , and the mesh cover bracket 20 and the mesh cover 30 are both installed in the mounting groove 11 .

[0068] like Figure 4 and Figure 5 As shown, in order to achieve the connection between the mesh cover bracket 20 and the front shell body 10, an elastic buckle 26 is provided on the mesh cover bracket 20, and a bayonet portion 13 is provided on the front shell body 10. The elastic buckle 26 is engaged with the bayonet portion 13 to enable the mesh cover bracket 20 to be installed on the front shell body 10.

[0069] Specifically, the bayonet portion 13 has a bayonet 131 for the elastic buckle 26 to pass through and a clamping protrusion 132 . The elastic buckle 26 has a hook portion 261 . The hook portion 261 of the elastic buckle 26 passes through the bayonet 131 and is clamped with the clamping protrusion 132 .

[0070] Specifically, Fig. 9 As shown, the main body of the elastic buckle 26 is a plate-shaped structure, and the hook portion 261 is disposed on the main body of the elastic buckle 26 and protrudes from the main body of the elastic buckle 26 .

[0071] Optionally, the hook portion 261 has a passing inclined surface 262 and a locking surface 263 , wherein the passing inclined surface 262 is used to facilitate the elastic buckle 26 to pass through the bayonet 131 , and the locking surface 263 is used to contact the locking protrusion 132 .

[0072] Optionally, the hook portion 261 is a strip structure, and the cross section of the hook portion 261 is a triangle, wherein the cross section of the hook portion 261 is a cross section perpendicular to the extension direction of the hook portion 261. Preferably, the cross section of the hook portion 261 is a right triangle.

[0073] Preferably, the hook portion 261 and the main body of the elastic buckle 26 are an integrally formed structure.

[0074] In order to make the elastic buckle 26 pass through the bayonet 131 more conveniently, the bayonet portion 13 includes an elastic sheet 133 . The elastic sheet 133 and the engaging protrusion 132 are located at two opposite sides of the bayonet 131 .

[0075] One implementation of the elastic sheet 133 is as follows: Figure 5 As shown, there is an elastic gap between at least part of the elastic sheet 133 and the main body of the bayonet portion 13, so that the elastic sheet 133 has elasticity; or, another implementation method of the elastic sheet 133 is: at least part of the elastic sheet 133 protrudes from the main body of the bayonet portion 13, so that the elastic sheet 133 has elasticity.

[0076] In order to guide the elastic buckle 26 when it passes through the bayonet 131, the bayonet portion 13 further includes a guide rib 134, which is located on the inner wall of the elastic sheet 133. The guide rib 134 has a guide slope 135 for contacting the elastic buckle 26, and the guide slope 135 is arranged obliquely to the inner wall surface of the elastic sheet 133; along the insertion direction of the elastic buckle 26, the guide slope 135 gradually moves away from the inner wall surface of the elastic sheet 133. The elastic buckle 26 is brought into sliding contact with the guide slope 135 of the guide rib 134, so that the guide rib 134 can guide the elastic buckle 26, and under the guiding effect of the guide rib 134, at least part of the elastic buckle 26 passes through the bayonet 131.

[0077] Specifically, the elastic buckle 26 is disposed on the bracket body 21 and protrudes from the bracket body 21 .

[0078] Alternatively, if Figure 6 and Figure 7 As shown, there are multiple bayonet portions 13 and multiple elastic buckles 26, and the multiple bayonet portions 13 and multiple elastic buckles 26 are arranged in a one-to-one correspondence; the multiple elastic buckles 26 are arranged at circumferential intervals around the bracket body 21, and the multiple bayonet portions 13 are arranged at circumferential intervals around the installation groove 11 to ensure the assembly effect between the mesh cover bracket 20 and the front shell body 10.

[0079] Optionally, the mesh cover 30 is made of a flame retardant material; preferably, the mesh cover 30 is made of a metal material.

[0080] Optionally, the grille bracket 20 is made of non-flame retardant material to reduce material cost.

[0081] The present invention further provides an electric heater, which includes a heating element, the front shell assembly 100 and the rear shell assembly, wherein the heating element is arranged between the front shell assembly 100 and the rear shell assembly.

[0082] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0083] In the front shell assembly 100 of the present invention, the front shell assembly 100 includes a front shell component provided with an elastic stop 22 and a mesh cover 30 provided with an elastic boss 32. The elastic boss 32 is engaged with the elastic stop 22 to position the mesh cover 30 on the front shell component, that is, the disassembly and assembly between the mesh cover 30 and the front shell component is achieved through the cooperation of the elastic stop 22 and the elastic boss 32. Therefore, the engagement of the elastic stop 22 and the elastic boss 32 makes the disassembly and assembly between the mesh cover 30 and the front shell component more convenient. The front shell assembly 100 is applied to a heater to solve the problem of the difficulty in disassembly and assembly of the front shell assembly of the heater in the prior art, thereby improving the assembly efficiency of the front shell assembly.

[0084] The electric heater of the present invention includes the front shell assembly 100 described above, and therefore, the electric heater has at least the same technical effect as the front shell assembly 100.

[0085] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0086] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0087] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0088] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A front housing assembly, suitable for a heater, characterized in that: The front housing assembly comprises: A front shell component, wherein an elastic stopper (22) is provided on the front shell component; A mesh cover (30), wherein an elastic boss (32) is provided on the mesh cover (30), and the elastic boss (32) is engaged with the elastic stopper (22) so that the mesh cover (30) is positioned on the front shell component; The front shell component comprises: a front shell body (10); a mesh cover bracket (20), wherein the mesh cover bracket (20) is detachably mounted on the front shell body (10), and the elastic stopper (22) is arranged on the mesh cover bracket (20); The mesh cover bracket (20) is provided with an elastic buckle (26), the front shell body (10) is provided with a bayonet portion (13), and the elastic buckle (26) is engaged with the bayonet portion (13) so that the mesh cover bracket (20) is installed on the front shell body (10); The bayonet portion (13) comprises a bayonet (131) for the elastic buckle (26) to pass through and a clamping protrusion (132); the elastic buckle (26) comprises a clamping hook portion (261); the clamping hook portion (261) of the elastic buckle (26) passes through the bayonet (131) and is clamped with the clamping protrusion (132); The bayonet portion (13) comprises an elastic sheet (133), wherein the elastic sheet (133) and the clamping protrusion (132) are located on opposite sides of the bayonet (131); An elastic notch is provided between at least a portion of the elastic sheet (133) and the main body of the bayonet portion (13); or at least a portion of the elastic sheet (133) protrudes from the main body of the bayonet portion (13), so that the elastic sheet (133) has elasticity; The bayonet portion (13) further comprises a guide rib (134), wherein the guide rib (134) is located on the inner wall of the elastic sheet (133), and the guide rib (134) has a guide inclined surface (135) for contacting the elastic buckle (26), and the guide inclined surface (135) is arranged obliquely to the inner wall surface of the elastic sheet (133); along the insertion direction of the elastic buckle (26), the guide inclined surface (135) gradually moves away from the inner wall surface of the elastic sheet (133).

2. The front housing assembly according to claim 1, characterized in that: The elastic boss (32) is provided with a latching tongue portion (322), and the latching tongue portion (322) abuts against the elastic stopper (22).

3. The front housing assembly according to claim 1, characterized in that: The mesh cover (30) comprises a mesh cover body (31), and the elastic boss (32) is arranged on the mesh cover body (31) and protrudes from the mesh cover body (31).

4. The front housing assembly according to claim 1, characterized in that: The elastic boss (32) comprises a tongue body (321) and a tongue portion (322) arranged on the tongue body (321), one end of the tongue portion (322) is connected to the tongue body (321), and the other end of the tongue portion (322) is a free end.

5. The front housing assembly according to claim 4, characterized in that: The tongue body (321) and the tongue portion (322) are both plate-shaped structures, and the tongue portion (322) is arranged obliquely with respect to the tongue body (321); The tongue body (321) is provided with a folding notch (323), and the tongue portion (322) is formed by folding the plate body portion surrounded by the folding notch (323) toward the inner side of the mesh cover (30).

6. The front housing assembly according to claim 1, characterized in that: The net cover bracket (20) comprises a bracket body (21), the elastic stopper (22) is arranged on the bracket body (21), an elastic opening (23) is opened on the net cover bracket (20), and the elastic stopper (22) is located between two elastic openings (23).

7. The front housing assembly according to claim 1, characterized in that: The mesh cover support (20) is provided with a support rib group (24), and the mesh cover support (20) is in contact with the mesh cover (30) via the support rib group (24).

8. The front housing assembly according to claim 7, characterized in that: The supporting rib group (24) comprises: a first supporting rib (241), the first supporting rib (241) being arranged on the top of the mesh cover support (20); and / or A second supporting rib (242), the second supporting rib (242) being arranged at the bottom of the mesh cover support (20); and / or A third supporting rib (243), a support air outlet (25) is arranged on the mesh cover support (20), the third supporting rib (243) is an annular structure, and the third supporting rib (243) is arranged around the support air outlet (25).

9. The front housing assembly according to claim 1, characterized in that: The front shell body (10) is provided with a mounting groove (11), and the net cover bracket (20) and the net cover (30) are both mounted in the mounting groove (11).

10. The front housing assembly according to claim 1, characterized in that: The net cover bracket (20) comprises a bracket body (21), and the elastic buckle (26) is arranged on the bracket body (21) and protrudes from the bracket body (21).

11. The front housing assembly according to claim 1, characterized in that: The mesh cover (30) is made of a flame retardant material, and the mesh cover support (20) is made of a non-flame retardant material.

12. An electric heater, comprising a heating element, a front shell component and a rear shell component, wherein the heating element is arranged between the front shell component and the rear shell component, and characterized in that: The front shell component is the front shell component according to any one of claims 1 to 11.

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