Device housing

Abstract

An equipment shell comprises a bottom shell, an upper cover buckled with the bottom shell and a PCB arranged in a space defined by the bottom shell and the upper cover, and a guide assembly is arranged in the bottom shell. The guide assembly is provided with a supporting table and a guide column extending upwards from the top end of the supporting table, and an inclined guide face is formed at the top end of the guide column. The PCB gradually slides downwards along the inclined guide face and abuts against the top end of the supporting table. The whole equipment shell has no abnormal sound, and meanwhile, the structural stability of the whole equipment shell is high.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial electrical appliances, and more specifically to an equipment housing. Background Art

[0002] In industrial equipment, main components such as PCB boards are usually installed in a housing to protect the PCB boards.

[0003] In the prior art, after the PCB is installed in the housing, the installation gap between the PCB and the housing, such as the upper cover or the bottom shell, causes the installation of the PCB to be unstable. Thus, when the device housing is installed on other machines that rotate at high speed, the entire device will generate abnormal noise, and the structural stability of the device will gradually decrease.

[0004] Therefore, the industry needs to provide an improved device housing to overcome the defects of the prior art. Utility Model Content

[0005] The purpose of the utility model is to solve the above-mentioned problem and provide a device housing.

[0006] In order to meet the purpose of the utility model, the utility model adopts the following technical solutions:

[0007] A device housing comprises a bottom shell, an upper cover buckled with the bottom shell, and a PCB board arranged in a space defined by the bottom shell and the upper cover, wherein a guide assembly is arranged in the bottom shell. The guide assembly comprises a support platform and a guide column extending upward from the top end of the support platform, wherein the top end of the guide column forms an inclined guide surface; the PCB board gradually slides downward along the inclined guide surface and presses against the top end of the support platform.

[0008] Preferably, the bottom shell has a bottom wall; the support platform is formed on the bottom wall. Further preferably, a positioning column is also provided on the bottom wall; a positioning hole is provided on the PCB board; the positioning column passes through the positioning hole, thereby realizing accurate positioning of the PCB board.

[0009] Optionally, the top of the positioning column forms a conical guide surface. Preferably, it also includes a fixing component, which has a support plate arranged on the bottom wall and a clamping block formed on the top of the support plate; the PCB board is clamped between the top end of the support platform and the bottom end of the clamping block.

[0010] Preferably, the clamping block has an inclined guide wall and a limiting wall located at the bottom end of the inclined guide wall; the PCB board is clamped between the top end of the support platform and the limiting wall.

[0011] Preferably, the bottom shell also has a side wall formed on the periphery of the bottom wall, and a latch tongue is formed on the outer surface of the side wall; the upper cover has a top wall, and a snap ring is formed on the periphery of the top wall; when the bottom shell and the upper cover are buckled together, the snap ring tightly clamps the latch tongue.

[0012] Further preferably, the latch tongue is a wedge-shaped latch tongue; and the snap ring is a rectangular snap ring.

[0013] Preferably, an inner side surface of the top wall forms a spring sheet extending obliquely downward, and the spring sheet elastically presses the PCB board downward.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0015] In the device shell provided by the utility model, since a guide assembly is arranged in the bottom shell, which has a support platform and a guide column extending upward from the top end of the support platform, the top end of the guide column forms an inclined guide surface. Therefore, in the process of assembling the PCT board into the bottom shell, the inclined guide surface first guides the PCB board, prompting the PCB board to gradually slide downward along the inclined guide surface, and finally guides the PCT board to the top end of the support platform and presses the PCB board against the support platform, thereby realizing fast and convenient fixing of the PCB board to the bottom shell, and since the PCB board is tightly pressed against the top end of the support platform, abnormal noise of the entire device shell is effectively avoided, and the structural stability of the entire device shell is improved.

[0016] Additional aspects and advantages of the present invention will be partially given in the following description, which will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1a This is a three-dimensional structural exploded view of a device housing according to an embodiment of the utility model.

[0019] Figure 1b Figure 1a An enlarged view of the local structure of part A of the device housing is shown.

[0020] Figure 2 This is a three-dimensional structural exploded view of the device housing of an embodiment of the utility model from another angle.

[0021] Figure 3 This is a three-dimensional structural diagram of a device housing according to an embodiment of the utility model.

[0022] Figure 4This is a planar structural diagram of a device housing according to an embodiment of the utility model.

[0023] Figure 5 for Figure 4 A structural cross-sectional view of the device housing is shown. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and cannot be interpreted as limiting the present invention.

[0025] It will be understood by those skilled in the art that, unless expressly stated, the singular forms "one", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their groups. It should be understood that when we say that an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may be intermediate elements. In addition, the "connection" or "coupling" used here may include wireless connection or wireless coupling. The term "and / or" used here includes all or any unit and all combinations of one or more associated listed items.

[0026] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as the meaning in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0027] In the utility model, since a guide assembly is arranged in the bottom shell, which has a support platform and a guide column extending upward from the top end of the support platform, and the top end of the guide column forms an inclined guide surface, during the process of assembling the PCT board into the bottom shell, the inclined guide surface first guides the PCB board, causing the PCB board to gradually slide downward along the inclined guide surface, and finally guides the PCT board to the top end of the support platform and presses the PCB board against the support platform, thereby fixing the PCB board to the bottom shell. In addition, the PCB board is tightly pressed against the top end of the support platform, which effectively avoids abnormal noise of the entire device housing and improves the structural stability of the device housing.

[0028] In one embodiment of the present invention, reference Figure 1a-5 , provides a device housing 100, which can be any appropriate type of industrial equipment housing, such as a device housing for tire pressure monitoring in the automotive field, or a device housing for an industrial flow sensor, etc. The utility model does not specifically limit its scope of application.

[0029] The device housing 100 includes a bottom shell 10, an upper cover 20 buckled with the bottom shell 10, and a PCB board 30 disposed in a space defined by the bottom shell 10 and the upper cover 20. It should be noted that the PCB board 30 generally refers to a printed circuit board in a general sense, which can realize or have various specific functions. The present utility model does not limit this.

[0030] The bottom shell 10 and the upper cover 20 can be fixed to each other in various ways, such as by clamping, gluing or threading. In one embodiment of the utility model, the two can be connected and fixed by clamping, such as forming a clamp ring on one of them and providing a corresponding clamping tongue on the other. The bottom shell 10 and the upper cover 20 can be fastened to each other quickly and conveniently through the cooperation of the two.

[0031] The guide assembly 142 is disposed in the bottom case 10 for guiding and assisting the assembly of the PCB board 30 in the process of assembling the bottom case 10. Specifically, the guide assembly 142 comprises a support platform 1422 and a guide column 1424 extending upward from the top of the support platform 1422. The top of the guide column 1424 forms an inclined guide surface 14242.

[0032] When assembling the PCB board 30 to the bottom case 10, the operator first holds the PCB board 30 and moves it toward the inside of the bottom case 10. During the movement, as the PCB board 30 gradually approaches the bottom case 10, the edge of the PCB board 30 first contacts the inclined guide surface 14242, and then the PCB board 30 gradually slides downward along the inclined guide surface 14242, thereby achieving the assembly guide function of the PCB board 30, and finally the PCB board 30 is pressed against the top of the support platform 1422.

[0033] Preferably, in one embodiment, the bottom shell 10 has a bottom wall 12; the support platform 1422 is formed on the bottom wall 12. In other words, the support platform 1422 is formed on the bottom wall 12, so that the bottom wall 12 can be used as a main supporting component to effectively support the PCB board 30 on the support platform 1422.

[0034] In addition, a positioning column 144 may be provided on the bottom wall 12; a positioning hole 32 is provided on the PCB board 30; the positioning column 144 passes through the positioning hole 32, thereby realizing accurate positioning of the PCB board 30. Specifically, the guide assembly 142 is used to initially guide the PCB board 30, while the positioning column 144 is used to realize further accurate positioning. By precisely inserting the positioning hole 32 on the PCB board 30 into the positioning column 144, it is ensured that the PCB board 30 is limited in both its length and width directions, so that the PCB board 30 can be accurately assembled to a specified position inside the bottom shell 10.

[0035] In the above embodiment, the specific structures of the positioning hole 32 and the positioning column 144 can have various shapes, for example, both can be waist-shaped hole structures, circular structures, elliptical structures or rectangular structures. In order to facilitate assembly, a circular structure is preferably adopted, that is, the circular positioning hole 32 and the cylindrical positioning column 144 cooperate with each other, because the circular structure has no directionality, thus greatly reducing the difficulty of processing the positioning hole on the PCB board 30 and the positioning column on the bottom shell 10.

[0036] Further preferably, a conical guide surface 1446 is formed on the top of the positioning column 144. The conical guide surface 1446 is helpful for precisely inserting the positioning column 144 into the positioning hole 32, for example, the two can be assembled quickly.

[0037] According to another embodiment of the utility model, the device housing 100 further includes a fixing assembly 14, which has a support plate 1462 disposed on the bottom wall 12 and a clamping block 1464 formed on the top of the support plate 1462. Through the fixing assembly 14, the PCB board 30 can be further stably assembled in the bottom shell 10, ensuring that there is no empty space (installation gap) between the PCB board 30 and the bottom shell 10, thereby ensuring the structural stability of the entire device housing and reducing abnormal noise. Specifically, when the PCB board 30 is clamped on the top of the support platform 1422, the clamping block 1464 further presses the PCB board 30 firmly on the top of the support platform 1422, which further ensures that there is no empty space (installation gap) between the PCB board 30 and the bottom shell 10, thereby further avoiding the abnormal noise of the device housing 10 caused by the existence of the installation gap.

[0038] Furthermore, the block 1464 has an inclined guide wall 14642 and a limiting wall 14644 at the bottom of the inclined guide wall 14642; the PCB board 30 is fixed between the top of the support platform 1422 and the limiting wall 14644. The inclined guide wall 14642 also has an assembly guide function for the PCB board 30, so that the PCB board 30 can be quickly guided to the correct installation position.

[0039] According to one embodiment, the bottom shell 10 further has a side wall 14 formed on the periphery of the bottom wall 12, and a latch 148 is formed on the outer surface of the side wall 14; the upper cover 20 has a top wall 22, and a snap ring 224 is formed on the periphery of the top wall 22; when the bottom shell 10 and the upper cover 20 are buckled together, the snap ring 224 tightly clamps the latch 148. This snap connection method can quickly and easily buckle the bottom shell 10 and the upper cover 20 together, avoiding the use of screws, and greatly improving the assembly speed.

[0040] The present invention does not limit the specific structure of the tongue and the snap ring. For example, in one embodiment, the tongue 148 is a wedge-shaped tongue; correspondingly, the snap ring 224 is a rectangular snap ring. The rectangular snap ring has enough hooking space to facilitate hooking with the tongue. The wedge-shaped tongue has enough strength to avoid breaking the tongue due to insufficient strength during assembly.

[0041] In order to further achieve stable assembly and avoid abnormal noise in the entire device housing 100, a similar special design can be made for the upper cover 20. Specifically, a spring sheet 222 extending downwardly and obliquely can be formed on the inner side of the top wall 22. When the upper cover 20 and the bottom shell 10 are assembled with each other, the spring sheet 222 elastically presses the PCB board 30 downward, so that the PCB board 30 can be further ensured to be firmly assembled between the bottom shell 10 and the upper cover 20 without any installation gap, which naturally does not cause abnormal noise in the device housing 100 during use (for example, when the device housing 100 is installed on a high-speed running car tire).

[0042] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes in the processes discussed in this application may be alternated, altered, combined, or deleted. Further, other steps, measures, and schemes in the various operations, methods, and processes discussed in this application may also be alternated, altered, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and schemes in the prior art that are similar to those disclosed in this application may also be alternated, altered, rearranged, decomposed, combined, or deleted.

[0043] The above description is only a partial implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A device housing, comprising a bottom housing, an upper cover buckled with the bottom housing, and a PCB board arranged in a space defined by the bottom housing and the upper cover, wherein a guide assembly is arranged in the bottom housing, characterized in that: The guide assembly comprises a support platform and a guide column extending upward from the top of the support platform, the top of the guide column forms an inclined guide surface; the PCB board gradually slides downward along the inclined guide surface and presses against the top of the support platform.

2. The device housing according to claim 1, characterized in that: The bottom shell has a bottom wall; the supporting platform is formed on the bottom wall.

3. The device housing according to claim 2, characterized in that: A positioning column is also arranged on the bottom wall; a positioning hole is provided on the PCB board; and the positioning column passes through the positioning hole, thereby realizing accurate positioning of the PCB board.

4. The device housing according to claim 3, characterized in that: The top of the positioning column forms a tapered guiding surface.

5. The device housing according to claim 2, characterized in that: It also includes a fixing component, which has a support plate arranged on the bottom wall and a clamping block formed on the top of the support plate; the PCB board is clamped between the top end of the support platform and the bottom end of the clamping block.

6. The device housing according to claim 5, characterized in that: The clamping block has an inclined guide wall and a limiting wall located at the bottom end of the inclined guide wall; the PCB board is clamped and fixed between the top end of the supporting platform and the limiting wall.

7. The device housing according to claim 2, characterized in that: The bottom shell also has a side wall formed on the periphery of the bottom wall, and a latch tongue is formed on the outer surface of the side wall; the upper cover has a top wall, and a snap ring is formed on the periphery of the top wall; when the bottom shell and the upper cover are buckled together, the snap ring tightly clamps the latch tongue.

8. The device housing according to claim 7, characterized in that: The clamping tab is a wedge-shaped clamping tab.

9. The device housing according to claim 8, characterized in that: The clamping ring is a rectangular clamping ring.

10. The device housing according to claim 7, characterized in that: The inner side surface of the top wall forms a spring sheet extending obliquely downward, and the spring sheet elastically presses the PCB board downward.

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