Spacer

Abstract

The utility model discloses a spacer, which is used for fixing a first circuit board on a second circuit board or a casing, and comprises a connecting wall, a first supporting wall, a second supporting wall and a third supporting wall, the first supporting wall and the second supporting wall are connected to one side of the connecting wall in parallel, and the third supporting wall is connected to the other side of the connecting wall. A guide groove used for installing the first circuit board is formed between the first supporting wall and the second supporting wall, the third supporting wall is connected to the other side of the connecting wall, a plurality of connecting holes are formed in the third supporting wall, and the distance piece is connected with the second circuit board or the machine shell through the connecting holes. According to the scheme, the spacer stably and reliably clamps and fixes the first circuit board needing to be fixed through the guide grooves, and the problem that positioning holes are not convenient to open in the first circuit board can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board spacing, and specifically to a spacer. Background Art

[0002] In electronic products or electrical appliances, in order to space one circuit board (PCB board) from another circuit board or the casing, so as to prevent the components on the circuit board from being damaged due to short circuit or impact, it is usually necessary to space two circuit boards or space the circuit board from the casing.

[0003] The existing method for spacing between boards usually uses spacer posts to space the circuit boards, which requires drilling holes in the circuit board for the installation of the spacer posts. For a circuit board that is not convenient to drill holes on, how to ensure the stable and reliable spaced installation of the circuit board is a problem that those skilled in the art have been continuously working on to solve. Summary of the Utility Model

[0004] In order to overcome the defects in the prior art, the embodiment of the utility model provides a spacer, which stably and reliably clamps and fixes the first circuit board to be fixed through a guide groove, and can solve the problem that it is not convenient to open positioning holes on the first circuit board.

[0005] The embodiment of the present application discloses: a spacer for fixing a first circuit board to a second circuit board or a casing, which includes: a connecting wall, a first supporting wall, a second supporting wall and a third supporting wall. The first supporting wall and the second supporting wall are connected to one side of the connecting wall in parallel. A guide groove for installing the first circuit board is formed between the first supporting wall and the second supporting wall. The third supporting wall is connected to the other side of the connecting wall. A plurality of connecting holes are provided on the third supporting wall. The spacer is connected to the second circuit board or the casing through the connecting holes.

[0006] Specifically, the guide groove has a feeding end, and chamfers are provided at one ends of the first supporting wall and / or the second supporting wall corresponding to the feeding end.

[0007] Specifically, the third supporting wall is parallel to the second supporting wall, and the bottoms of the third supporting wall and the second supporting wall are aligned. When the spacer is connected to the second circuit board or the casing, the bottoms of the third supporting wall and the second supporting wall both contact the second circuit board or the casing.

[0008] Specifically, the thickness of the third supporting wall is greater than the thickness of the second supporting wall.

[0009] Specifically, two positioning posts are provided on the third supporting wall, and at least one of the connecting holes is provided between the two positioning posts.

[0010] Specifically, a plurality of material-reducing grooves are provided on the third support wall.

[0011] The utility model has at least the following beneficial effects:

[0012] 1. The spacer of this embodiment stably and reliably clamps and fixes the first circuit board to be fixed through the guide groove, which can solve the problem that it is inconvenient to open positioning holes on the first circuit board.

[0013] 2. The spacer of this embodiment has the characteristics of high strength and not easy to deform.

[0014] In order to make the above and other purposes, features and advantages of the utility model more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is a perspective view of the spacer in the embodiment of the present utility model;

[0017] Figure 2 is a front view of the spacer in the embodiment of the present utility model;

[0018] Figure 3 is a top view of the spacer in the embodiment of the present utility model;

[0019] Figure 4 is a right view of the spacer in the embodiment of the present utility model.

[0020] The reference numerals of the above drawings: 1, connecting wall; 2, first support wall; 3, second support wall; 23, guide groove; 4, third support wall; 41, connecting hole; 42, positioning post; 43, material-reducing groove. Detailed Embodiment

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "fixation", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood through specific circumstances.

[0023] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "below", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0024] In the description of this embodiment, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of this application.

[0025] In addition, the terms "first", "second", etc. are only used for distinction in description and have no special meaning.

[0026] The spacer of this embodiment can be used to fix the first circuit board to the second circuit board or the casing, and separate the first circuit board from the second circuit board or the casing to prevent the first circuit board from contacting the second circuit board or the casing.

[0027] Combined with Figures 1 to 3As shown, the spacer of this embodiment includes a connecting wall 1, a first support wall 2, a second support wall 3, and a third support wall 4 that are connected to each other to form an integral body. Among them, the first support wall 2 and the second support wall 3 are located on the same side of the connecting wall 1, and are respectively connected to the connecting wall 1. The first support wall 2 and the second support wall 3 are arranged in parallel and at intervals so as to form a guide groove 23 for installing the first circuit board therebetween. The third support wall 4 is connected to the other side of the connecting wall 1, and a plurality of connecting holes 41 are provided on the third support wall 4. The spacer is connected to the second circuit board or the casing through these connecting holes 41.

[0028] Specifically, the spacer of this embodiment is in a long and narrow shape. The lengths of its first support wall 2, second support wall 3, and third support wall 4 are generally equal to the length of the connecting wall 1, and the lengths of these are generally between 2 / 3 and 3 / 4 of the length of the first circuit board (in other words, the ratio of the length of the spacer to the length of the first circuit board is between 2 / 3 and 3 / 4), thereby ensuring the stability and reliability of the fixation of the spacer to the first circuit board.

[0029] The guide groove 23 of this embodiment has a feeding end, and chamfers are provided at one ends of the first support wall 2 and / or the second support wall 3 corresponding to the feeding end. Specifically, as Figure 2 shown, in this embodiment, a chamfer is provided at one end of the first support wall 2 corresponding to the feeding end of the guide groove 23. In this way, it is convenient to insert the first circuit board.

[0030] As Figure 4 shown, the third support wall 4 and the second support wall 3 of this embodiment are parallel, and they are respectively vertically connected to the connecting wall 1. The bottoms of the third support wall 4 and the second support wall 3 are aligned. When the spacer is connected to the second circuit board or the casing, the bottoms of the third support wall 4 and the second support wall 3 are both in contact with the second circuit board or the casing, which can further improve the connection strength and stability between the spacer and the second circuit board or the casing.

[0031] As Figure 2 and Figure 3 shown, two positioning columns 42 are also provided on the third support wall 4. At least one connecting hole 41 is provided between the two positioning columns 42. In other words, the two positioning columns 42 are separated by at least one connecting hole 41 to facilitate the quick positioning of the spacer to the second circuit board or the casing.

[0032] Preferably, still referring to Figure 4 , the thickness of the third support wall 4 is greater than the thickness of the second support wall 3. In this way, the overall strength of the spacer structure can be improved and the deformation amount of the spacer column can be reduced. Further, a plurality of material-reducing grooves 43 can also be provided on the third support wall 4, which is beneficial to saving materials.

[0033] The spacer of this embodiment can be integrally formed by a plastic mold.

[0034] In summary, the usage method of the spacer in this embodiment is as follows: cooperate the positioning posts 42 with the positioning holes on the second circuit board or the chassis, then screw in the screws in the connecting holes 41 to fixedly connect the spacer with the second circuit board or the chassis, and then slide the first circuit board into the feeding end of the guiding groove 23.

[0035] The spacer in this embodiment stably and reliably clamps and fixes the first circuit board to be fixed through the guiding groove 23, and can solve the problem that it is inconvenient to open positioning holes on the first circuit board.

[0036] Specific embodiments are applied in the present utility model to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A spacer for fixing a first circuit board to a second circuit board or a housing, characterized in that, Comprising: A connecting wall, a first support wall, a second support wall and a third support wall. The first support wall and the second support wall are connected to one side of the connecting wall in parallel. A guide groove for installing the first circuit board is formed between the first support wall and the second support wall. The third support wall is connected to the other side of the connecting wall. A plurality of connecting holes are provided on the third support wall. The spacer is connected to the second circuit board or the housing through the connecting holes.

2. The spacer according to claim 1, characterized in that, The guide groove has a feeding end, and chamfers are provided at one ends of the first support wall and / or the second support wall corresponding to the feeding end.

3. The spacer according to claim 1, characterized in that, The third support wall is parallel to the second support wall, and the bottoms of the third support wall and the second support wall are aligned. When the spacer is connected to the second circuit board or the housing, the bottoms of the third support wall and the second support wall are both in contact with the second circuit board or the housing.

4. The spacer according to claim 3, wherein, The thickness of the third support wall is greater than the thickness of the second support wall.

5. The spacer according to claim 1, characterized in that, Two positioning posts are provided on the third support wall, and at least one of the connecting holes is provided between the two positioning posts.

6. The spacer according to claim 1, wherein A plurality of material-reducing grooves are provided on the third support wall.

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