Housing assembly and electronic device

Abstract

The application discloses a shell assembly and an electronic device, and belongs to the technical field of electronic products. The disclosed electronic device comprises a shell assembly, which comprises a shell, a part of the shell is a pressing part, the shell is provided with a limiting part, the limiting part is located on the inner side of the pressing part and is arranged in a spaced manner with the pressing part, and the limiting part can be limitedly matched with the pressing part in the pressing direction of the pressing part; a pressure sensing unit is arranged on the pressing part and located on the inner side of the pressing part; wherein, in the case that the pressing part is pressed, the pressure sensing unit is deformed along with the deformation of the pressing part.

Description

Technical Field

[0001] This application belongs to the field of electronic product technology, specifically relating to a housing assembly and an electronic device. Background Technology

[0002] With the widespread use of electronic devices, their usage environments have become more complex and diverse. Whether at home or outdoors, electronic devices inevitably come into contact with external liquids, which places higher demands on their sealing performance.

[0003] Traditional electronic devices typically consist of a housing, buttons, and a pressure-sensitive unit. The housing has mounting holes, the buttons are movably mounted within these holes, and the pressure-sensitive unit is located inside the housing. In actual use, the user presses the button, causing it to move, which in turn deforms the pressure-sensitive unit, enabling the electronic device to perform the corresponding function. However, the sealing performance between the mounting hole wall and the button in traditional electronic devices is often poor, resulting in a higher probability of external liquids entering the electronic device, potentially damaging internal components. Utility Model Content

[0004] The purpose of this application is to provide a housing assembly and electronic device that can solve the problem of the high probability of external liquids entering electronic devices in related technologies.

[0005] In a first aspect, embodiments of this application provide a housing assembly, including: The housing has a portion that is a pressing part. The housing is provided with a limiting part, which is located inside the pressing part and spaced apart from it. The limiting part can be engaged with the pressing part in the pressing direction of the pressing part. A pressure-sensitive unit is disposed on the pressing part and located inside the pressing part; When the pressing part is pressed, the pressure-sensitive unit deforms with the deformation of the pressing part.

[0006] Secondly, this application provides an electronic device, including a circuit board and the aforementioned housing assembly, wherein the pressure-sensitive unit of the housing assembly is electrically connected to the circuit board.

[0007] In this embodiment, a portion of the housing is a pressing part, and a pressure-sensitive unit is disposed on the pressing part and located inside it. When the pressing part is pressed, the pressure-sensitive unit deforms along with the deformation of the pressing part. In actual use, pressing the pressing part causes the pressure-sensitive unit to deform along with the pressing part, thereby enabling the electronic device to perform the corresponding function. In this design, the pressing part is equivalent to a button in the prior art, and the pressing part is part of the housing. The pressing part and the other parts of the housing are an integral structure with no gap between them. Therefore, external liquid cannot enter the electronic device from the junction of the pressing part and the other parts of the housing, thus reducing the probability of external liquid entering the electronic device and extending the service life of the components inside the electronic device.

[0008] Furthermore, in this embodiment, the limiting part can be positioned to engage with the pressing part in the pressing direction, thus limiting the deformation range of both the pressure-sensitive unit and the pressing part in the pressing direction. This reduces the probability of damage to the pressure-sensitive unit and the pressing part due to excessive deformation, extending their service life. In addition, when the limiting part contacts the pressing part, the limiting part and the pressing part are positioned to engage in the pressing direction, providing the user with a good mechanical feel and improving the user experience. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of the housing assembly disclosed in one embodiment of this application; Figure 2 This is a schematic diagram of the structure of a housing assembly disclosed in another embodiment of this application; Figure 3 This is a schematic diagram of the pressure-sensitive unit disclosed in the embodiments of this application; Figure 4 This is a schematic diagram of the pressure-sensitive unit disclosed in an embodiment of this application; Figure 5 This is a schematic diagram illustrating the arrangement of the limiting body and the buffer pad as disclosed in the embodiments of this application.

[0010] Explanation of reference numerals in the attached figures: 100-Shell, 110-Pressing part, 120-Limiting part, 121-First sub-part, 122-Second sub-part, 123-Arc surface, 124-Limiting main body, 125-Buffer pad, 130-Main body; 200-Pressure-sensitive unit, 210-Flexible circuit board, 220-Insulating layer, 230-Pad, 240-Conductive layer, 250-Pressure-sensitive layer, 250a-First pressure-sensitive layer, 250b-Second pressure-sensitive layer, 250c-Third pressure-sensitive layer, 250d-Fourth pressure-sensitive layer, 260-Adhesive layer. Detailed Implementation

[0011] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0012] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0013] The housing components and electronic devices provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0014] Please refer to Figures 1 to 5 As shown in the figure, an embodiment of this application provides a housing assembly, including a housing 100 and a pressure-sensitive unit 200.

[0015] Specifically, a portion of the housing 100 is a pressing part 110, which means that the pressing part 110 is an integral structure with the other parts of the housing 100, and there is no gap between the circumferential edge of the pressing part 110 and the other parts of the housing 100.

[0016] The housing 100 is provided with a limiting part 120, which is located inside the pressing part 110 and spaced apart from it to provide a certain deformation space for the pressing part 110. The limiting part 120 can be positioned to cooperate with the pressing part 110 in the pressing direction, for example, the pressing direction of the pressing part 110 is... Figure 1 The direction indicated by arrow A in the diagram. Optionally, the limiting part 120 may be part of the housing 100, or the limiting part 120 may be an additional structure added to the housing 100.

[0017] The pressure-sensitive unit 200 is disposed on the pressing part 110 and located inside the pressing part 110. When the pressing part 110 is pressed, the pressure-sensitive unit 200 deforms with the deformation of the pressing part 110.

[0018] In this embodiment, a portion of the housing 100 is a pressing part 110, and a pressure-sensitive unit 200 is disposed on the pressing part 110 and located inside the pressing part 110. When the pressing part 110 is pressed, the pressure-sensitive unit 200 deforms along with the deformation of the pressing part 110. In actual use, pressing the pressing part 110 causes the pressure-sensitive unit 200 to deform along with the deformation of the pressing part 110, thereby enabling the electronic device to perform the corresponding function. In this design, the pressing part 110 is equivalent to a button in the prior art, and the pressing part 110 is a part of the housing 100. The pressing part 110 and the other parts of the housing 100 are an integral structure with no gap between them. Therefore, external liquid cannot enter the electronic device from the junction of the pressing part 110 and the other parts of the housing 100, thus reducing the probability of external liquid entering the electronic device and extending the service life of the components inside the electronic device.

[0019] Furthermore, in this embodiment, the limiting part 120 can engage with the pressing part 110 in an upper limit engagement direction. This limits the deformation range of both the pressure-sensitive unit 200 and the pressing part 110 in the pressing direction, thus reducing the probability of damage due to excessive deformation and extending their service life. Additionally, when the limiting part 120 contacts the pressing part 110, the upper limit engagement provides a good mechanical feel, improving the user experience.

[0020] In one alternative embodiment, reference is made to... Figure 3 As shown, the pressure-sensitive unit 200 includes, for example, a flexible circuit board 210. Both opposite sides of the flexible circuit board 210 are provided with a pressure-sensitive layer 250 and an insulating layer 220, with the pressure-sensitive layer 250 located within the insulating layer 220. Each pressure-sensitive layer 250 has a conductive layer 240 at both ends, and each conductive layer 240 is electrically connected to the flexible circuit board 210 via a pad 230. Furthermore, the pressure-sensitive unit 200 also includes an adhesive layer 260, located outside one of the insulating layers 220. (Refer to...) Figure 1 and Figure 2 As shown, the pressure-sensitive unit 200 is directly bonded to the pressing part 110, for example, through the adhesive layer 260.

[0021] The pressure-sensitive layer 250 is made of a pressure-sensitive material, and the deformation of the pressure-sensitive material is linearly related to its resistance. (Reference) Figure 4As shown, the number of pressure-sensitive layers 250 is, for example, four. For ease of description, the four pressure-sensitive layers 250 are defined as the first pressure-sensitive layer 250a, the second pressure-sensitive layer 250b, the third pressure-sensitive layer 250c, and the fourth pressure-sensitive layer 250d. The first pressure-sensitive layer 250a and the second pressure-sensitive layer 250b are located on the first side of the flexible circuit board 210, and the third pressure-sensitive layer 250c and the fourth pressure-sensitive layer 250d are located on the second side of the flexible circuit board 210. The first side and the second side are opposite sides of the flexible circuit board 210, respectively.

[0022] refer to Figure 4 As shown, under external force, the pressure-sensitive layer 250 deforms. Due to the difference in bending radii between the first and second sides of the flexible circuit board 210, the first pressure-sensitive layer 250a and the second pressure-sensitive layer 250b are both in a compressed state, while the third pressure-sensitive layer 250c and the fourth pressure-sensitive layer 250d are both in a stretched state. Therefore, the resistance of the pressure-sensitive layer 250 on the first side is different from that on the second side. In actual use, the changes in resistance caused by the deformation of the first pressure-sensitive layer 250a, the second pressure-sensitive layer 250b, the third pressure-sensitive layer 250c, and the fourth pressure-sensitive layer 250d are converted into electrical signals, thereby enabling the electronic device to perform corresponding functions.

[0023] It should be noted that, Figure 4 The hollow arrow in the image indicates the direction of the external force. Figure 4 The solid line drawing of the pressure-sensitive unit 200 in the diagram illustrates its initial state when no external force is applied. Figure 4 The dashed line in the diagram illustrates the shape of the pressure-sensitive unit 200 under the action of external force.

[0024] In another embodiment, reference Figure 1 and Figure 2 As shown, the limiting part 120 includes a first sub-part 121. In the pressing direction of the pressing part 110, the orthographic projection of the first sub-part 121 is located within the orthographic projection of the pressure-sensitive unit 200. The first sub-part 121 can be limited and engaged with the pressure-sensitive unit 200 in the pressing direction of the pressing part 110.

[0025] In this embodiment, the first sub-part 121 can be positioned and engaged with the pressure-sensitive unit 200 in the pressure direction of the pressing part 110. In this way, the first sub-part 121 can directly constrain the deformation of the pressure-sensitive unit 200, thereby further reducing the probability of the pressure-sensitive unit 200 being damaged due to excessive deformation.

[0026] In other embodiments, the limiting part 120 may also directly contact the pressing part 110 to indirectly limit the deformation of the pressure-sensitive unit 200 in the pressing direction of the pressing part 110.

[0027] In another embodiment, the limiting part 120 further includes a second sub-part 122, the orthographic projection of the second sub-part 122 is located within the orthographic projection of the pressing part 110 and outside the orthographic projection of the pressure-sensitive unit 200, and the second sub-part 122 can be limited to cooperate with the pressing part 110 in the pressing direction of the pressing part 110.

[0028] Using the solution provided in this embodiment, the limiting part 120 includes both a first sub-part 121 and a second sub-part 122. The first sub-part 121 can be directly engaged with the pressure-sensitive unit 200 in the pressure direction of the pressing part 110, and the second sub-part 122 can be directly engaged with the pressing part 110 in the pressure direction. In other words, in this embodiment, the first sub-part 121 and the second sub-part 122 are used for simultaneous limiting, which improves the limiting effect of the limiting part 120 and makes the limiting more reliable.

[0029] In actual use, when the pressure-sensitive unit 200 comes into contact with the first sub-part 121, the first sub-part 121 restricts the pressure-sensitive unit 200 from continuing to deform along the pressure direction of the pressing part 110. When the pressing part 110 comes into contact with the second sub-part 122, the second sub-part 122 restricts the pressing part 110 from continuing to deform along the pressure direction of the pressing part 110, thereby making the pressing part 110 stably stay in the preset position.

[0030] In addition, when the pressure-sensitive unit 200 comes into contact with the first sub-part 121, the pressing part 110 comes into contact with the second sub-part 122 at the same time. In this configuration, the deformation of each part of the pressing part 110 is basically synchronous, thereby reducing the design difficulty of the pressing part 110.

[0031] Alternatively, the pressure-sensitive unit 200 may come into contact with the first sub-part 121 only after the pressing part 110 has contacted the second sub-part 122. In this configuration, after the pressing part 110 contacts the second sub-part 122, the second sub-part 122 can pre-buffer the force applied by the user to the pressing part 110. As a result, when the pressure-sensitive unit 200 contacts the first sub-part 121, the force acting between the first sub-part 121 and the pressure-sensitive unit 200 is reduced, thereby decreasing the probability of the pressure-sensitive unit 200 being damaged due to excessive force.

[0032] It should be noted that when the pressing part 110 contacts the second sub-part 122, whether the pressure-sensitive unit 200 contacts the first sub-part 121 mainly depends on the distance between the first sub-part 121 and the pressure-sensitive unit 200 and the distance between the second sub-part 122 and the pressing part 110. The corresponding requirements can be met by reasonably designing the distance between the first sub-part 121 and the pressure-sensitive unit 200 and the distance between the second sub-part 122 and the pressing part 110. And the distance here refers to the distance in the pressure direction of the pressing part 110.

[0033] In other embodiments, the limiting portion 120 may include only the second sub-portion 122 and not the first sub-portion 121, or only the first sub-portion 121 and not the second sub-portion 122.

[0034] In a further embodiment, reference is made to... Figure 1 As shown, the first sub-part 121 and the second sub-part 122 are spaced apart. In this arrangement, the limiting part 120 has a split structure, and the space between the first sub-part 121 and the second sub-part 122 is empty. As a result, the limiting part 120 as a whole requires less material, thereby reducing the cost of the housing assembly.

[0035] In another embodiment, reference Figure 2 As shown, the first sub-part 121 is connected to the second sub-part 122. With this configuration, the limiting part 120 has an integral structure, which can better disperse the local stress of the limiting part 120 and thus prevent the local stress of the limiting part 120 from being too large.

[0036] Optionally, the first sub-part 121 and the second sub-part 122 may be an integral structure, or the first sub-part 121 and the second sub-part 122 may be processed separately and then connected to form an integral whole.

[0037] In another embodiment, reference Figure 1 and Figure 2 As shown, there are at least two second sub-parts 122, which are symmetrically arranged on both sides of the first sub-part 121 in a first direction. The first direction is perpendicular to the pressure direction of the pressing part 110. For example, the first direction is... Figure 1 The direction indicated by arrow B in the diagram.

[0038] In this embodiment, the symmetrical arrangement of at least two second sub-parts 122 makes the force on the pressing part 110 and the limiting part 120 more uniform, thereby making the cooperation between the limiting part 120 and the pressing part 110 more reliable.

[0039] Optionally, the pressing part 110 may be a strip-shaped structure, and the first direction may be the length direction of the pressing part 110. More specifically, the pressing part 110 may be a rectangular structure.

[0040] Optionally, the number of second sub-parts 122 is, for example, two. The two second sub-parts 122 correspond to the two ends of the pressing part 110 in the first direction, and the first sub-part 121 corresponds to the middle position of the pressing part 110 in the first direction. In this arrangement, each second sub-part 122 is spaced apart from the first sub-part 121, or each second sub-part 122 is connected to the first sub-part 121. In addition, in this arrangement, the first sub-part 121 corresponds to the middle position of the pressing part 110. This position has a larger deformation than other positions, and a pressure-sensitive unit 200 is provided at this position. The pressure-sensitive unit 200 occupies a certain space. Therefore, in the initial state, in the pressure direction of the pressing part 110, the distance between the first sub-part 121 and the pressing part 110 is, for example, greater than the distance between the second sub-part 122 and the pressing part 110.

[0041] In other embodiments, the number of second sub-parts 122 may also be one.

[0042] In another embodiment, reference Figure 2 As shown, at least a portion of the side of the limiting portion 120 facing the pressing portion 110 is an arc surface 123. The concave direction of the arc surface 123 is the same as the pressure direction of the pressing portion 110. For example, the concave direction of the arc surface 123 is... Figure 2 As indicated by arrow C, the curved surface 123 can contact at least one of the pressing part 110 and the pressure-sensitive unit 200.

[0043] After pressing, the final shapes of both the pressing part 110 and the pressure-sensitive unit 200 are approximately arc-shaped. By setting at least a portion of the side of the limiting part 120 facing the pressing part 110 as an arc surface 123, the contact area between the limiting part 120 and at least one of the pressing part 110 and the pressure-sensitive unit 200 can be increased, which helps to improve the limiting effect and the reliability of the pressing operation.

[0044] In the initial design stage, for example, the deformation of the pressing part 110 and the pressure-sensitive unit 200 is simulated in advance, and then the arc surface 123 mentioned above is designed based on the simulation results, so as to increase the contact area between the arc surface 123 and the pressing part 110 and the pressure-sensitive unit 200.

[0045] Optionally, at least one of the surface of the first sub-part 121 facing the pressing part 110 and the surface of the second sub-part 122 facing the pressing part 110 mentioned above is an arc surface 123.

[0046] In other embodiments, the side of the limiting portion 120 facing the pressing portion 110 may also be a plane, and the side of the limiting portion 120 facing the pressing portion 110 may be perpendicular to the pressing direction of the pressing portion 110, for example.

[0047] In another embodiment, the limiting portion 120 includes a limiting body 124 and a buffer pad 125. The buffer pad 125 is disposed on the side of the limiting body 124 facing the pressing portion 110. The limiting portion 120 contacts at least one of the pressing portion 110 and the pressure-sensitive unit 200 through the buffer pad 125. The buffer pad 125 can buffer the contact force between the limiting portion 120 and at least one of the pressing portion 110 and the pressure-sensitive unit 200, thereby reducing the damage rate of at least one of the pressing portion 110 and the pressure-sensitive unit 200.

[0048] Optionally, the cushioning pad 125 may be, for example, a foam pad or a silicone pad.

[0049] Optionally, at least a portion of the side of the cushioning pad 125 facing the pressing portion 110 is, for example, an arc surface 123, to increase the contact area between the limiting portion 120 and at least one of the pressing portion 110 and the pressure-sensitive unit 200.

[0050] Optionally, the limiting part 120 may include, for example, the first sub-part 121 and the second sub-part 122 mentioned above, the limiting body 124 may include, for example, a first portion and a second portion, the buffer pad 125 may include a first sub-pad and a second sub-pad, the first sub-part 121 may include a first portion and a first sub-pad, the first sub-pad may be disposed on the side of the first portion facing the pressing part 110, the first portion may contact the pressure sensing unit 200 through the first sub-pad, the second sub-pad may be disposed on the side of the second portion facing the pressing part 110, the second portion may contact the pressing part 110 through the second sub-pad.

[0051] In other embodiments, the limiting portion 120 may include only the limiting body 124 and not the buffer pad 125. In this case, at least a portion of the side of the limiting body 124 facing the pressing portion 110 is, for example, an arc surface 123, to increase the contact area between the limiting portion 120 and at least one of the pressing portion 110 and the pressure-sensitive unit 200.

[0052] In another embodiment, reference Figure 1 As shown, the housing 100 includes an integrally formed main body 130 and a pressing part 110. A limiting part 120 is disposed on the main body 130. In the direction in which the pressure-sensitive unit 200 points toward the pressing part 110, the pressing part 110 protrudes relative to the main body 130. For example, the direction in which the pressure-sensitive unit 200 points toward the pressing part 110 is... Figure 1 The arrow D in the diagram indicates the direction. With this setting, the position of the press part 110 is more obvious, making it easier for users to operate and supporting blind pressing, thus improving the user experience.

[0053] Optionally, the housing 100 may be made of aluminum alloy, for example. Of course, the housing 100 may also be made of other materials. The pressing part 110 is part of the housing 100 and is made of the same material as the housing 100. The material of the housing 100 is only required to ensure that the pressing part 110 can meet the corresponding deformation requirements.

[0054] Optionally, at least a portion of the pressing part 110 is located outside the main body part 130. Specifically, refer to Figure 1 As shown, the pressing part 110 is located entirely outside the main body 130, and the edge of the pressing part 110 is in upper limit engagement with the main body 130, for example, in the pressing direction of the pressing part 110. That is, the edge of the pressing part 110 acts as a fulcrum, and other parts of the pressing part 110 other than the edge deform under the action of external force.

[0055] In one alternative embodiment, the pressing part 110 may also be flush with the main body 130 in the direction in which the pressure-sensitive unit 200 points to the pressing part 110.

[0056] In another embodiment, reference Figure 1 and Figure 2 As shown, the pressing part 110 has a sheet-like structure, and the pressure-sensitive unit 200 is disposed on the inner surface of the pressing part 110. The sheet-like structure has a small thickness, which makes it easier to deform the pressing part 110, thereby reducing the difficulty of operating the pressing part 110.

[0057] Furthermore, the pressing part 110 may be, for example, the strip structure described above, so that the pressing part 110 is easier to deform, thereby further reducing the difficulty of operating the pressing part 110.

[0058] Furthermore, the pressure-sensitive unit 200 includes, for example, the adhesive layer 260 mentioned above, which is directly bonded to the inner surface of the pressing part 110. In this configuration, the pressing part 110 can directly cooperate with the pressure-sensitive unit 200 to control the electronic device to perform corresponding functions. This reduces the number of components involved in the housing assembly, thereby simplifying the structure of the housing assembly, reducing the assembly difficulty and cost, and also helps to reduce the size of the housing assembly.

[0059] In other embodiments, the pressing part 110 may also be a block structure. In this configuration, the inner surface of the pressing part 110 is provided with a groove, for example, and the pressure-sensitive unit 200 is located in the groove and connected to the bottom of the groove.

[0060] This application also provides an electronic device, which includes a circuit board and the aforementioned housing assembly, wherein the pressure-sensitive unit 200 of the housing assembly is electrically connected to the circuit board. Because this electronic device includes the aforementioned housing assembly, the probability of external liquid entering the electronic device is low.

[0061] In actual use, the circuit board receives the electrical signals transmitted by the pressure sensing unit 200, thereby controlling the operation of the corresponding components of the electronic device, and thus enabling the electronic device to perform the corresponding functions.

[0062] Alternatively, the electronic device may be a smartphone, tablet, e-book reader, or wearable device.

[0063] Optionally, the housing 100 of the housing assembly is, for example, a frame, more specifically, a mid-frame, and the circuit board is, for example, the motherboard of an electronic device.

[0064] Optionally, the pressure-sensitive unit 200 may include, for example, the flexible circuit board 210 described above, which is electrically connected to the circuit board. Specifically, the flexible circuit board 210 is electrically connected to the circuit board, for example, via a board-to-board connector. Of course, the flexible circuit board 210 may also be electrically connected to the circuit board via conductive contacts.

[0065] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A housing assembly, characterized in that, include: The housing (100) has a portion of a pressing part (110) and a limiting part (120) provided therein. The limiting part (120) is located inside the pressing part (110) and is spaced apart from the pressing part (110). The limiting part (120) can be engaged with the pressing part (110) in the pressing direction of the pressing part (110). A pressure-sensitive unit (200) is disposed on the pressing part (110) and located inside the pressing part (110); When the pressing part (110) is pressed, the pressure-sensitive unit (200) deforms with the deformation of the pressing part (110).

2. The housing assembly according to claim 1, characterized in that, The limiting part (120) includes a first sub-part (121). In the pressing direction of the pressing part (110), the orthographic projection of the first sub-part (121) is located within the orthographic projection of the pressure-sensitive unit (200). The first sub-part (121) can be engaged with the pressure-sensitive unit (200) in the upper limit of the pressing part (110) in the pressing direction.

3. The housing assembly according to claim 2, characterized in that, The limiting part (120) further includes a second sub-part (122), the orthographic projection of the second sub-part (122) is located within the orthographic projection of the pressing part (110) and outside the orthographic projection of the pressure-sensitive unit (200), and the second sub-part (122) can be engaged with the pressing part (110) in the upper limit direction of the pressing part (110).

4. The housing assembly according to claim 3, characterized in that, The first sub-part (121) and the second sub-part (122) are spaced apart or connected.

5. The housing assembly according to claim 3, characterized in that, The number of the second sub-parts (122) is at least two, and at least two second sub-parts (122) are symmetrically arranged on both sides of the first sub-part (121) in a first direction, the first direction being perpendicular to the pressure direction of the pressing part (110).

6. The housing assembly according to claim 1, characterized in that, At least a portion of the side of the limiting part (120) facing the pressing part (110) is an arc surface (123), the concave direction of the arc surface (123) is the same as the pressure direction of the pressing part (110), and the arc surface (123) can contact at least one of the pressing part (110) and the pressure-sensitive unit (200).

7. The housing assembly according to claim 1, characterized in that, The limiting part (120) includes a limiting body (124) and a buffer pad (125). The buffer pad (125) is disposed on the side of the limiting body (124) facing the pressing part (110). The limiting part (120) contacts at least one of the pressing part (110) and the pressure-sensitive unit (200) through the buffer pad (125).

8. The housing assembly according to claim 1, characterized in that, The housing (100) includes an integrally formed main body (130) and a pressing part (110), and a limiting part (120) is disposed on the main body (130). In the direction from the pressure-sensitive unit (200) to the pressing part (110), the pressing part (110) protrudes relative to the main body (130).

9. The housing assembly according to claim 1, characterized in that, The pressing part (110) has a sheet-like structure, and the pressure-sensitive unit (200) is disposed on the inner surface of the pressing part (110).

10. An electronic device, characterized in that, The device includes a circuit board and a housing assembly as described in any one of claims 1-9, wherein the pressure-sensitive unit (200) of the housing assembly is electrically connected to the circuit board.

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