Microphone, voice structure and electric heater

Abstract

The utility model provides a microphone, a voice structure and an electric heater. The microphone comprises a sound receiving part and a first limiting part. The sound receiving part is installed on the installation body and is in limiting fit with the installation body so as to limit the sound receiving part to move in the radial direction. The first limiting part is arranged on the sound receiving part and is in limiting fit with the mounting body so as to limit the sound receiving part to move in the axial direction of the sound receiving part. According to the microphone, radial limiting of the sound receiving part is achieved through limiting cooperation of the sound receiving part and the mounting body, axial limiting of the sound receiving part is achieved through limiting cooperation of the first limiting part and the mounting body, it is guaranteed that the microphone can be stably and reliably mounted on the mounting body, it is guaranteed that the microphone cannot incline after being mounted, and the sound receiving effect of the microphone is improved. Besides, the microphone is directly mounted on the mounting body and does not depend on interference crimping of crimping bosses on parts such as the shell, so that the problem of microphone deviation caused by part sizes, mounting modes and the like is effectively avoided, and the reliability of the microphone, the voice structure and the electric heater is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to intelligent voice household electrical appliances technical field, in particular to a microphone, voice structure and electric heater. BACKGROUND

[0002] At present, part of household electrical appliances product increases offline voice function, and the circular microphone component for receiving the voice instruction that people sent is used. For the product, the higher the receiving recognition rate of voice instruction is, the better the effect is. However, the household electrical appliances product in prior art has the poor microphone sound effect. UTILITY MODEL CONTENT

[0003] Therefore, it is necessary to provide a microphone, voice structure and electric heater for the poor microphone sound effect of the household electrical appliances product in prior art.

[0004] The technical scheme is as follows:

[0005] In a first aspect, a microphone is provided, which is installed on a mounting body, and the microphone comprises:

[0006] A sound receiving part is installed on the mounting body and is limited in position with the mounting body to limit the movement of the sound receiving part along its radial direction;

[0007] A first limiting part is arranged on the sound receiving part and is limited in position with the mounting body to limit the movement of the sound receiving part along its axial direction.

[0008] The technical scheme is further explained as follows:

[0009] In one embodiment, the number of the first limiting part is at least one, and each first limiting part is arranged on the sound receiving part along its circumferential direction and is limited in position with the mounting body.

[0010] In a second aspect, a voice structure is provided, which comprises a mounting body and the above-mentioned microphone, and the mounting body is provided with a second limiting part and a third limiting part. The second limiting part is limited in position with the sound receiving part to limit the movement of the sound receiving part along its radial direction, and the third limiting part is limited in position with the first limiting part to limit the movement of the sound receiving part along its axial direction.

[0011] In one embodiment, the first limiting part is arranged on the outer wall of the sound receiving part, the second limiting part comprises at least two first limiting protrusions, each first limiting protrusion is arranged along the circumferential direction of the sound receiving part, each first limiting protrusion is limited in position with the sound receiving part to limit the movement of the sound receiving part along its radial direction, and the gap between adjacent first limiting protrusions forms a gap for avoiding the first limiting part.

[0012] In one of the embodiments, the first limiting protrusions are two, and each of the two first limiting protrusions extends along the circumference of the sound collecting portion and is located at the opposite side of the sound collecting portion, and each of the two first limiting protrusions is provided with at least one limiting rib on the side close to the other first limiting protrusion, and each of the limiting ribs is arranged along the circumference of the sound collecting portion and is in limiting cooperation with the sound collecting portion.

[0013] In one of the embodiments, each of the limiting ribs extends along the axial direction of the sound collecting portion, and each of the limiting ribs is provided with a first guide surface on the side away from the mounting body.

[0014] In one of the embodiments, the first limiting portion is provided as a second limiting protrusion, and the third limiting portion includes at least two elastic buckles, each of the elastic buckles is arranged at the opposite side of the second limiting protrusion and cooperates with the mounting body to limit the movement of the second limiting protrusion along the axial direction of the sound collecting portion.

[0015] In one of the embodiments, each of the elastic buckles is provided with a reinforcing rib on the side away from the second limiting protrusion, and each of the reinforcing ribs is connected with the mounting body.

[0016] In one of the embodiments, the microphone further includes a wire connected with the sound collecting portion, and the mounting body includes a fixing portion fixedly connected with one end of the wire close to the sound collecting portion.

[0017] In one of the embodiments, the second limiting portion is provided with a wire passing hole, and the mounting body is further provided with a wire passing groove in communication with the wire passing hole, the wire passing groove is located between the fixing portion and the second limiting portion, and one end of the wire sequentially passes through the fixing portion, the wire passing groove and the wire passing hole and is connected with the sound collecting portion.

[0018] In one of the embodiments, the fixing portion is provided as a wire passing buckle, and the mounting body is further provided with a first protrusion and a second protrusion, the first protrusion and the second protrusion are arranged at the two sides of the wire passing hole along the circumference of the sound collecting portion, and the first protrusion, the second protrusion and the mounting body located between the first protrusion and the second protrusion form the wire passing groove, and the wire passing buckle is located on one side of the wire passing groove and is connected with one end of the first protrusion away from the second limiting portion.

[0019] In a third aspect, an electric heater is provided, which includes the voice structure.

[0020] The microphone, the voice structure and the electric heater in the above-mentioned embodiments are used, and the radial limitation of the sound receiving part is realized through the sound receiving part and the mounting body, the axial limitation of the sound receiving part is realized through the first limiting part and the mounting body, the microphone can be stably and reliably mounted on the mounting body, the microphone after installation cannot be inclined, and the sound receiving effect of the microphone, the voice structure and the electric heater is improved. In addition, the microphone is directly mounted on the mounting body, and does not depend on the interference press fitting of the press fitting boss on the shell and other parts, the microphone deviation problem caused by the part size, the mounting mode and the like is effectively avoided, and the reliability of the microphone, the voice structure and the electric heater is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. The accompanying drawings should not be regarded as a limitation of the present application, but merely as an illustration.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0023] Figure 1 The structure schematic diagram of the microphone of one embodiment.

[0024] Figure 2 The structure schematic diagram of the voice structure of one embodiment.

[0025] Figure 3 The structure schematic diagram of the electric heater of one embodiment. Figure 2 The local enlarged view of part A in the electric heater.

[0026] Figure 4 The structure schematic diagram of the mounting body in the electric heater. Figure 2

[0027] The structure schematic diagram of the mounting body in the electric heater. Figure 5 Figure 4 The local enlarged view of part B in the electric heater.

[0028] Explanation of reference signs:

[0029] ​10, voice structure; 100, microphone; 110, sound receiving part; 120, first limiting part; 121, second limiting protrusion; 130, lead wire; 200, mounting body; 210, second limiting part; 211, first limiting protrusion; 212, avoiding opening; 213, limiting rib; 214, wire passing hole; 220, third limiting part; 221, elastic buckle; 222, reinforcing rib; 230, sound receiving hole; 240, fixing part; 241, wire passing buckle; 250, wire passing groove; 251, first protrusion; 252, second protrusion. DETAILED DESCRIPTION

[0030] In order to make the above objects, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in many different ways from those described herein without departing from the scope of the present application, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0031] For the household appliance product with poor microphone sound receiving effect, the inventor found through test analysis that the voice effect is the best when the microphone itself is not formed with a cavity during structure assembly and is not installed in a skewed manner. In the prior art, the microphone is placed in a mounting groove on a body, and then the body with the microphone is mounted to another shell with a wire passing hole and an abutting protrusion. During the mounting process, the lead wire of the microphone is manually pulled to the inside of the shell. Then, the buckle on the body is tightly buckled with the shell, so that the protrusion on the shell abuts against the back of the microphone, and the microphone is pressed tightly through interference fit.

[0032] During the entire mounting process, the following problems exist, which can cause poor voice effect of the microphone.

[0033] 1. The microphone can be installed in a skewed manner, which can cause poor sound receiving effect.

[0034] 2. The process of pulling the lead wire can cause the microphone to be installed in a skewed manner, which can cause poor sound receiving effect.

[0035] 3. Since the buckle on the body and the buckle on the shell both have certain deformation and dimensional tolerance, the microphone can not be tightly attached to the protrusion, which can cause poor sound receiving effect.

[0036] Based on the above problems, the inventor designs the microphone 100, the voice structure 10 and the electric heater according to the embodiments of the present application to solve the above technical problems.

[0037] As shown in FIG. 1, the voice structure 10 includes a microphone 100 and a voice structure 10. Figure 1 And Figure 2As shown, in one embodiment, a microphone 100 is provided, mounted on a mounting body 200. The microphone 100 includes a receiving portion 110 and a first limiting portion 120. The receiving portion 110 is mounted on the mounting body 200 and engages with the mounting body 200 to limit radial movement of the receiving portion 110. The first limiting portion 120 is disposed on the receiving portion 110 and engages with the mounting body 200 to limit axial movement of the receiving portion 110.

[0038] In the above embodiment, the microphone 100, during use, achieves radial positioning of the microphone 110 through a limiting engagement between the microphone 110 and the mounting body 200, and axial positioning of the microphone 110 through a limiting engagement between the first limiting part 120 and the mounting body 200. This ensures that the microphone 100 can be stably and reliably mounted on the mounting body 200, preventing the microphone 100 from tilting after installation and improving its sound pickup performance. Furthermore, since the microphone 100 is directly mounted on the mounting body 200, it no longer relies on the interference fit of pressing bosses on parts such as the housing, effectively avoiding microphone 100 misalignment problems caused by part size, installation method, etc., thus improving the reliability of the microphone 100.

[0039] The receiver 110 can be configured as any existing structure capable of receiving voice commands. The shape of the receiver 110 can be flexibly adjusted according to actual usage needs. Specifically, in this embodiment, the receiver 110 is cylindrical. In other embodiments, when the receiver 110 is not cylindrical, its radial direction is perpendicular to its axial direction.

[0040] The first limiting part 120 can be configured as a limiting block, a limiting groove, or other limiting structure. The number and installation position of the first limiting parts 120 can be flexibly adjusted according to actual usage needs. For example, the number of the first limiting parts 120 can be one, two, or four, etc.

[0041] like Figure 2 As shown, in this specific embodiment, when the mounting body 200 is placed vertically, the receiver 110 is limited to the mounting body 200 to restrict the freedom of the receiver 110 in the four directions of up, down, left and right; the first limiting part 120 is limited to the mounting body 200 to restrict the freedom of the receiver 110 in the two directions of front and back.

[0042] like Figure 1As shown, the number of the first limiting portions 120 is at least one, each first limiting portion 120 is arranged on the sound collecting portion 110 along the circumference of the sound collecting portion 110 and is in limiting cooperation with the mounting body 200. In this way, by increasing the number of the first limiting portions 120, the limiting area between the first limiting portions 120 and the mounting body 200 is increased, the limiting surfaces are more uniformly distributed, the sound collecting portion 110 is prevented from tilting, and the reliability of the microphone 100 is improved.

[0043] As shown in Figure 1 , Figure 2 and Figure 3 , in one embodiment, a voice structure 10 is provided, which includes the mounting body 200 and the microphone 100 in any of the above embodiments. The mounting body 200 is provided with a second limiting portion 210 and a third limiting portion 220. The second limiting portion 210 is in limiting cooperation with the sound collecting portion 110 to limit the movement of the sound collecting portion 110 along the radial direction of the sound collecting portion 110. The third limiting portion 220 is in limiting cooperation with the first limiting portion 120 to limit the movement of the sound collecting portion 110 along the axial direction of the sound collecting portion 110.

[0044] In use, the voice structure 10 in the above embodiments is used, the radial limiting of the sound collecting portion 110 is achieved by the limiting cooperation between the sound collecting portion 110 and the second limiting portion 210 on the mounting body 200, and the axial limiting of the sound collecting portion 110 is achieved by the limiting cooperation between the first limiting portion 120 and the third limiting portion 220 on the mounting body 200, so that the microphone 100 can be stably and reliably mounted on the mounting body 200, the microphone 100 is prevented from tilting after being mounted, and the sound collecting effect of the microphone 100 is improved. In addition, the microphone 100 is directly mounted on the mounting body 200 through the second limiting portion 210 and the third limiting portion 220, and no longer depends on the interference press-fitting of the press-fitting bosses on the shell and other parts, so that the microphone 100 is effectively prevented from being deviated due to the size of the parts and the mounting method, and the reliability of the voice structure 10 is improved.

[0045] Among them, each first limiting portion is integrally formed with the sound collecting portion 110. The second limiting portion 210 can be any structure capable of limiting the movement of the sound collecting portion 110 along the radial direction of the sound collecting portion 110 in the prior art. The third limiting portion 220 and the first limiting portion 120 can be any structure capable of limiting the movement of the sound collecting portion 110 along the axial direction of the sound collecting portion 110 relative to the mounting body 200 in the prior art.

[0046] As shown in Figure 1 and Figure 3As shown, further, the first limiting portion 120 is arranged on the outer side wall of the sound collecting portion 110. The second limiting portion 210 comprises at least two first limiting protrusions 211, and each first limiting protrusion 211 is arranged along the circumference of the sound collecting portion 110. Each first limiting protrusion 211 is in limiting cooperation with the sound collecting portion 110 to limit the movement of the sound collecting portion 110 along the radial direction of the sound collecting portion 110. The cooperation between the two adjacent first limiting protrusions 211 forms an avoiding opening 212 for avoiding the first limiting portion 120.

[0047] In this embodiment, the number of the avoiding openings 212 is the same as the number of the first limiting portions 120. Each first limiting portion 120 is arranged corresponding to each avoiding opening 212. The inner wall of the first limiting portion 120 and the corresponding avoiding opening 212 is in limiting cooperation along the circumference of the sound collecting portion 110. In this way, the second limiting portion 210 can limit the translation of the sound collecting portion 110 on the mounting body 200 and also limit the rotation of the sound collecting portion 110 around the axis of the sound collecting portion 110, thereby improving the reliability of the voice structure 10.

[0048] As shown in Figure 3 , Figure 4 and Figure 5 , optionally, the first limiting protrusions 211 are two, and the two first limiting protrusions 211 extend along the circumference of the sound collecting portion 110 and are respectively located on opposite sides of the sound collecting portion 110. Each of the two first limiting protrusions 211 is provided with at least one limiting rib 213, and each limiting rib 213 is arranged along the circumference of the sound collecting portion 110 and is in limiting cooperation with the sound collecting portion 110. In this way, all the limiting ribs 213 are uniformly distributed on the outer circumference of the sound collecting portion 110, so that the radial force of the sound collecting portion 110 is uniformly distributed to ensure that the sound collecting portion 110 will not tilt after installation, thereby improving the sound collecting effect of the voice structure 10.

[0049] In this embodiment, the two first limiting protrusions 211 surround to form a mounting space. Each limiting rib 213 is located in the mounting space and is in interference cooperation with the sound collecting portion 110. The mounting body 200 is also provided with a sound collecting hole 230, and the sound collecting hole 230 is located between the two first limiting protrusions 211 and communicates with the mounting space. The sound collecting hole 230 is configured to be arranged corresponding to the sound collecting portion 110 for voice receiving when the sound collecting portion 110 is installed in the mounting space. Specifically, the mounting space and the sound collecting hole 230 are coaxially arranged.

[0050] In this embodiment, each limiting rib 213 extends along the axial direction of the sound collecting portion 110, and each limiting rib 213 is provided with a first guide surface on the side away from the mounting body 200. In this way, during assembly, the first guide surface can guide the sound collecting portion 110 to ensure that the sound collecting portion 110 can be smoothly installed in the mounting space, thereby improving the convenience of assembly of the voice structure 10.

[0051] The first guide surface can be a guide inclined surface, a guide arc surface, or a guide spherical surface, etc.

[0052] As shown in Figure 1 , Figure 3 and Figure 5 , in one embodiment, the first limiting part 120 is a second limiting protrusion 121. The third limiting part 220 includes at least two elastic buckles 221, each of which is arranged on opposite sides of the second limiting protrusion 121 and cooperates with the mounting body 200 to limit the movement of the second limiting protrusion 121 along the axis of the sound receiving part 110.

[0053] In this embodiment, each third limiting part 220 includes two elastic buckles 221. The ends of the two elastic buckles 221 away from the mounting body 200 and close to the mounting space are each provided with a second guide surface. The opposite sides of the end of the second protrusion 252 close to the mounting body 200 are each provided with a third guide surface. The two second guide surfaces and the two third guide surfaces are correspondingly arranged to allow the second limiting protrusion 121 to be smoothly installed between the corresponding two elastic buckles 221.

[0054] As shown in Figure 5 , optionally, each elastic buckle 221 has a reinforcing rib 222 on the side away from the second limiting protrusion 121, and each reinforcing rib 222 is connected to the mounting body 200. In this way, the reinforcing rib 222 can increase the strength of the elastic buckle 221 and improve the reliability of the voice structure 10.

[0055] As shown in Figure 3 and Figure 5 , in one embodiment, the microphone 100 further includes a wire 130 connected to the sound receiving part 110. The mounting body 200 includes a fixing part 240 fixedly connected to the end of the wire 130 close to the sound receiving part 110. In this way, the end of the wire 130 close to the sound receiving part 110 is fixed to the mounting body 200 through the fixing part 240, ensuring that the sound receiving part 110 will not be stressed when the wire 130 is pulled, thereby ensuring that the relative position between the sound receiving part 110 and the sound hole 230 remains fixed, and improving the reliability of the voice structure 10.

[0056] The fixing part 240 can be any structure in the prior art that can fix the wire 130 to the mounting body 200.

[0057] As shown in Figure 3 and Figure 5As shown, further, the second limiting portion 210 is provided with a wire passing hole 214. The mounting body 200 is further provided with a wire passing groove 250 in communication with the wire passing hole 214, the wire passing groove 250 being located between the fixing portion 240 and the second limiting portion 210. One end of the wire 130 passes through the fixing portion 240, the wire passing groove 250 and the wire passing hole 214 in sequence and is connected with the sound collecting portion 110. In this way, the wire 130 between the fixing portion 240 and the sound collecting portion 110 can be hidden in the wire passing hole 214 and the wire passing groove 250, avoiding the wire 130 between the fixing portion 240 and the sound collecting portion 110 from being pulled by external force to cause the sound collecting portion 110 to tilt, improving the reliability of the voice structure 10.

[0058] As shown in Figure 3 and Figure 5 As shown, optionally, the fixing portion 240 is provided as a wire passing buckle 241. The mounting body 200 is further provided with a first protrusion 251 and a second protrusion 252, the first protrusion 251 and the second protrusion 252 being arranged at two sides of the wire passing hole 214 along the circumference of the sound collecting portion 110. The first protrusion 251, the second protrusion 252 and the mounting body 200 between the first protrusion 251 and the second protrusion 252 form the wire passing groove 250. The wire passing buckle 241 is located at one side of the wire passing groove 250 and is connected with one end of the first protrusion 251 away from the second limiting portion 210.

[0059] In the embodiment, the first limiting protrusion 211, the limiting rib 213, the elastic buckle 221, the reinforcing rib 222, the wire passing buckle 241, the first protrusion 251 and the second protrusion 252 are all integrally formed with the mounting body 200. The wire passing hole 214 is arranged on any one of the two first limiting protrusions 211.

[0060] In one embodiment, an electric heater is also provided, comprising the voice structure 10 in any of the above embodiments. In this way, the electric heater comprises the voice structure 10 and thus has all the advantages of the voice structure 10.

[0061] It should be noted that the voice structure 10 is taken as an example of being applied to the electric heater for illustration in the embodiment. In other embodiments, the voice structure 10 can also be applied to other household electrical products such as electric fans and sweeping machines.

[0062] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0063] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0064] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0065] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0066] It is to be noted that when an element such as a layer, film, or region is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. It will be understood that, when an element or layer is referred to as being "connected" to or "coupled" to another element or layer, it can be directly connected or coupled or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0067] It will be understood that, although the terms "first", "second", etc. can be used herein to describe various elements or

[0068] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, the combinations of the technical features in the above embodiments are not described in detail, but it should be understood that any combination of the technical features is within the scope of the present application, as long as the combination does not result in a contradiction.

[0069] The above embodiments merely express several implementation manners of the present application, and the description is specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for those skilled in the art, some modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A microphone mounted on a mounting body (200), characterized by, The microphone (100) comprises: a sound collecting part (110) mounted on the mounting body (200) and in position-limiting cooperation with the mounting body (200) to limit the sound collecting part (110) from moving along its radial direction; a first position-limiting part (120) arranged on the sound collecting part (110) and in position-limiting cooperation with the mounting body (200) to limit the sound collecting part (110) from moving along its axial direction.

2. The microphone of claim 1, wherein, The number of the first position-limiting part (120) is at least one, and each first position-limiting part (120) is arranged on the sound collecting part (110) along the circumferential direction of the sound collecting part (110) and in position-limiting cooperation with the mounting body (200).

3. A speech structure, characterized by The microphone (100) comprises:

4. The speech structure of claim 3, wherein, The first position-limiting part (120) is arranged on the outer wall of the sound collecting part (110), and the second position-limiting part (210) comprises at least two first position-limiting protrusions (211), each first position-limiting protrusion (211) is arranged along the circumferential direction of the sound collecting part (110), each first position-limiting protrusion (211) is in position-limiting cooperation with the sound collecting part (110) to limit the sound collecting part (110) from moving along its radial direction, and the gap (212) for avoiding the first position-limiting part (120) is formed between the adjacent two first position-limiting protrusions (211).

5. The speech structure of claim 4, wherein, The first position-limiting protrusion (211) is two, and the two first position-limiting protrusions (211) extend along the circumferential direction of the sound collecting part (110) and are respectively located on the opposite sides of the sound collecting part (110), and at least one position-limiting rib (213) is arranged on the side of each first position-limiting protrusion (211) close to the other first position-limiting protrusion (211), and each position-limiting rib (213) is arranged along the circumferential direction of the sound collecting part (110) and in position-limiting cooperation with the sound collecting part (110).

6. The speech structure of claim 5, wherein, Each position-limiting rib (213) extends along the axial direction of the sound collecting part (110), and a first guide surface is arranged on the side of each position-limiting rib (213) away from the mounting body (200).

7. The voice construct of claim 3, wherein, The first position-limiting part (120) is arranged as a second position-limiting protrusion (121), and the third position-limiting part (220) comprises at least two elastic buckles (221), each elastic buckle (221) is arranged on the opposite side of the second position-limiting protrusion (121) and in cooperation with the mounting body (200) to limit the second position-limiting protrusion (121) from moving along the axial direction of the sound collecting part (110).

8. The speech structure of claim 7, wherein, Each of the elastic buckles (221) is provided with a reinforcing rib (222) away from one side of the second limiting protrusion (121), and each of the reinforcing ribs (222) is connected with the mounting body (200).

9. The speech structure according to any one of claims 3 to 8, characterized in that, The microphone (100) further comprises a wire (130) connected with the sound collecting part (110), and the mounting body (200) comprises a fixing part (240) fixedly connected with one end of the wire (130) close to the sound collecting part (110).

10. The speech structure of claim 9, wherein, The second limiting part (210) is provided with a wire passing hole (214), and the mounting body (200) is further provided with a wire passing groove (250) in communication with the wire passing hole (214), the wire passing groove (250) is located between the fixing part (240) and the second limiting part (210), and one end of the wire (130) sequentially passes through the fixing part (240), the wire passing groove (250) and the wire passing hole (214) and is connected with the sound collecting part (110).

11. The speech structure of claim 10, wherein, The fixing part (240) is provided as a wire passing buckle (241), the mounting body (200) is further provided with a first protrusion (251) and a second protrusion (252), the first protrusion (251) and the second protrusion (252) are arranged at two sides of the wire passing hole (214) along the circumference of the sound collecting part (110), the first protrusion (251), the second protrusion (252) and the mounting body (200) located between the first protrusion (251) and the second protrusion (252) surround to form the wire passing groove (250), the wire passing buckle (241) is located at one side of the wire passing groove (250) and is connected with one end of the first protrusion (251) away from the second limiting part (210).

12. An electric heater, characterized by A speech structure (10) as claimed in any of claims 3 to 11.

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