CAN bus connection interface
By designing the CAN bus connection interface of the sub-box and the mother box structure, multi-layer sealing protection is achieved using structures such as one-way valves, sealing sleeves and clamping strips, solving the problem of rust and disconnection when buried underground, ensuring waterproofing, moisture-proof and stability connect.
Patent Information
- Application Number
- CN202420982414.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-08
AI Technical Summary
It is difficult to achieve good sealing when buried underground, and it is prone to rust and disconnection problems.
A CAN bus connection interface is designed, adopting a sub-box and a female box structure, and multi-layer sealing protection is achieved through a one-way valve, sealing sleeve, clamping strip and other structures to ensure stable connection under low temperature environments.
It realizes waterproof and moisture-proof of the CAN bus connection interface in buried underground environment, avoids the problem of rust and disconnection, and ensures a long-term stable connection.
Smart Images
Figure CN222530955U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of CAN bus, in particular to a CAN bus connection interface. Background Art
[0002] CAN's high performance and reliability have been recognized and widely used in industrial automation, ships, medical equipment, industrial equipment, etc. Fieldbus is one of the hot spots in the development of automation technology today, and is known as the computer local area network in the automation field. Its emergence provides strong technical support for distributed control systems to achieve real-time and reliable data communication between nodes. CAN belongs to the category of fieldbus, which is a serial communication network that effectively supports distributed control or real-time control.
[0003] In the prior art, the CAN bus connection interface sometimes needs to be buried underground, which cannot achieve good sealing and may cause problems such as rust and disconnection. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies of the prior art, the utility model provides a CAN bus connection interface, which has the advantages of being waterproof and moisture-proof, and solves the problem of rust and disconnection in the prior art.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CAN bus connection interface, comprising a sub-box and a mother box; a wire handle A is provided in the sub-box, the outer side of the wire handle A is in contact with the inner wall of the sub-box, and the front and rear sides of the wire handle A are provided with left and right through grooves, a one-way valve is installed on the left wall of the sub-box, and the right side of the wire handle A is fixed with a plurality of wire holes in the sub-box, and a plurality of sealing sleeves are installed on the right end of the sub-box; a wire handle B is provided in the mother box, the right end of the wire handle B is fixed to the inner wall of the mother box, and a plurality of tongues are fixed on the left side of the wire handle B, the outer size of the sub-box matches the inner wall size of the mother box, and the outer size of the wire handle B matches the inner wall size of the sub-box; the sub-box can be inserted into the mother box and the two can be fixed, and a wire tube is installed on the side of the sub-box and the mother box away from each other for conducting current through the wire holes and the tongues.
[0008] In some embodiments, a cavity is provided in the sub-box on the left side of the wire handle A, and the one-way valve is connected to the cavity.
[0009] In some embodiments, two upper and lower retaining springs are provided in the wire hole, and the two retaining springs are respectively fixed to the upper and lower walls of the wire hole. When the tongue piece is inserted into the wire hole, the two retaining springs can clamp the tongue piece.
[0010] In some embodiments, a limiting strip is fixedly installed at the middle of the upper and lower walls of the sub-box on the right side of the wire handle A.
[0011] In some embodiments, the upper and lower walls of the wire handle B are both provided with limiting grooves, and the limiting grooves cooperate with the limiting strips.
[0012] In some embodiments, an L-shaped clamping strip A is fixedly mounted on the outer surface of the sub-box, and a ratchet groove is formed on a side of the clamping strip A close to the sub-box.
[0013] In some embodiments, an L-shaped clip B is fixedly installed on the outer surface of the mother box, and a ratchet groove is provided on the side of the clip B away from the mother box. When the clip B is inserted under the clip A, the ratchet groove can fix the two.
[0014] In some embodiments, four card strips A and four card strips B are provided.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the utility model provides a CAN bus connection interface, which has the following beneficial effects:
[0017] 1. The CAN bus connection interface is provided with a one-way valve. When the wire handle B is pushed into the sub-box, the air can be compressed into the cavity on the left side of the sub-box, and then the gas is discharged from the one-way valve, thereby achieving the first layer of protection, which can ensure that no external air enters for a long time. At the same time, the mother box will be sleeved on the outside of the sub-box, and the sealing sleeve will be in close contact with the inner wall of the mother box, thereby achieving the second layer of sealing protection. The card strips A and B can realize the rapid docking of the sub-box and the mother box, and realize the close connection between the two, which is suitable for long-term connection and is not easy to loosen, ensuring that the CAN bus connection interface always has the advantages of waterproof and moisture-proof when buried underground.
[0018] 2. The CAN bus connection interface can enhance connectivity by setting a retaining spring and a tongue. Because it may be deformed due to low temperature when buried underground, setting this structure can prevent the connection from being disconnected. Setting a restriction bar and a restriction groove can make docking smoother and prevent docking deviation from causing poor sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Figure 2 This is a partial structural breakdown diagram of the utility model;
[0021] Figure 3 It is a front schematic diagram of the utility model;
[0022] Figure 4This is the internal structure diagram of the sub-box of the utility model;
[0023] Figure 5 It is the structural diagram of the wire hole of the utility model.
[0024] In the figure: 1. sub-box; 2. main box; 3. wire handle A; 4. through slot; 5. one-way valve; 6. wire hole; 7. sealing sleeve; 8. wire handle B; 9. tongue; 10. wire tube; 11. retaining spring; 12. limiting strip; 13. limiting slot; 14. retaining strip A; 15. retaining strip B. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0026] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0027] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0028] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0029] In the related technology, the CAN bus connection interface sometimes needs to be buried underground, which cannot achieve good sealing and may cause problems such as rust and disconnection.
[0030] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a CAN bus connection interface. When it is needed, just push the wire handle B8 into the interior of the sub-box 1, the limiting strip 12 and the limiting groove 13 to make the docking smoother. The air can be compressed into the cavity on the left side of the sub-box 1, and then the gas is discharged from the one-way valve 5, thereby achieving the first layer of protection and ensuring the seal for a long time. At the same time, the mother box 2 will also be sleeved on the outside of the sub-box 1, and the sealing sleeve 7 is in close contact with the inner wall of the mother box 2, thereby achieving the second layer of sealing protection. The card strip A14 and the card strip B15 can realize the rapid docking of the sub-box 1 and the mother box 2, thereby achieving a tight connection between the two, which is suitable for long-term connection and is not easy to loosen.
[0031] The present application is described below with reference to the accompanying drawings and specific embodiments:
[0032] Combination Figure 1-Figure 5 The embodiment of the present application provides a CAN bus connection interface, including a sub-box 1 and a mother box 2. A wire handle A3 is provided in the sub-box 1, and the outer side of the wire handle A3 is in contact with the inner wall of the sub-box 1. The front and rear sides of the wire handle A3 are provided with through grooves 4 that penetrate left and right. A one-way valve 5 is installed on the left wall of the sub-box 1. The right side of the wire handle A3 is located in the sub-box 1 and fixed with a plurality of wire holes 6. A plurality of sealing sleeves 7 are installed on the right end of the sub-box 1. A wire handle B8 is provided in the mother box 2, and the right end of the wire handle B8 is fixed with the inner wall of the mother box 2. A plurality of tongues 9 are fixed on the left side of the wire handle B8. The outer size of the sub-box 1 matches the inner wall size of the mother box 2, and the outer size of the wire handle B8 matches the inner wall size of the sub-box 1. The sub-box 1 can be inserted into the mother box 2 and the two can be fixed. A wire tube 10 is installed on the side away from each other of the sub-box 1 and the mother box 2, which is used to conduct the current of the wire hole 6 and the tongue 9.
[0033] In this embodiment: the wire handle A3 is made of insulating material and glued to the inside of the sub-box 1, the one-way valve 5 adopts a miniature simple disposable valve body, the sealing sleeve 7 is made of rubber material, and there is the same distance between multiple ones, the wire handle B8 is made of insulating material, and its outside needs to be covered with a rubber pad to increase the contact seal with the inner wall of the sub-box 1, and the wires inside the wire tube 10 are connected to the wire hole 6 and the tongue 9 respectively.
[0034] In some embodiments, a cavity is provided in the sub-box 1 on the left side of the wire handle A3, and the one-way valve 5 is connected to the cavity.
[0035] Specifically, the air in the cavity can be compressed and then discharged from the one-way valve 5 .
[0036] In some embodiments, two upper and lower retaining springs 11 are provided in the wire hole 6 , and the two retaining springs 11 are respectively fixed to the upper and lower walls of the wire hole 6 . When the tongue piece 9 is inserted into the wire hole 6 , the two retaining springs 11 can clamp the tongue piece 9 .
[0037] Specifically, the clamping spring 11 is made of copper alloy, can be elastically deformed for clamping, can conduct electricity after contacting the tongue piece 9, and has a small resistance value.
[0038] In some embodiments, a limiting bar 12 is fixedly installed in the middle of the upper and lower walls of the sub-box 1 on the right side of the wire handle A3.
[0039] Specifically, during production, the limiting strip 12 and the sub-box 1 may be integrally injection-molded.
[0040] In some embodiments, the upper and lower walls of the wire handle B8 are both provided with limiting grooves 13 , and the limiting grooves 13 cooperate with the limiting strips 12 .
[0041] Specifically, the cross-sections of the limiting strip 12 and the limiting groove 13 are both triangular structures.
[0042] In some embodiments, an L-shaped clamping strip A14 is fixedly mounted on the outer surface of the sub-box 1 , and a ratchet groove is formed on a side of the clamping strip A14 close to the sub-box 1 .
[0043] Specifically, the card strip A14 is made of plastic and will deform when subjected to external force.
[0044] In some embodiments, an L-shaped clip B15 is fixedly installed on the outer surface of the mother box 2, and a ratchet groove is provided on the side of the clip B15 away from the mother box 2. When the clip B15 is inserted under the clip A14, the ratchet groove can fix the two.
[0045] Specifically, when the two are connected, the ratchet groove cooperates to prevent them from falling out.
[0046] In some embodiments, four card strips A14 and four card strips B15 are provided.
[0047] Specifically, the four can enhance the connection strength in all directions.
[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0049] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A CAN bus connection interface, comprising a sub-box (1) and a mother box (2); Features: The sub-box (1) is provided with a wire handle A (3), the outer side of the wire handle A (3) is in contact with the inner wall of the sub-box (1), the front and rear sides of the wire handle A (3) are provided with through grooves (4) extending left and right, the left side wall of the sub-box (1) is provided with a one-way valve (5), the right side surface of the wire handle A (3) is located in the sub-box (1) and is fixedly provided with a plurality of wire holes (6), and the right end of the sub-box (1) is provided with a plurality of sealing sleeves (7) outside; A wire handle B (8) is provided inside the mother box (2), the right end of the wire handle B (8) is fixed to the inner wall of the mother box (2), a plurality of tongue pieces (9) are fixed to the left side of the wire handle B (8), the outer dimensions of the sub-box (1) match the inner wall dimensions of the mother box (2), and the outer dimensions of the wire handle B (8) match the inner wall dimensions of the sub-box (1); The sub-box (1) can be inserted into the main box (2) and the two can be fixed. A wire tube (10) is installed on the side of the sub-box (1) and the main box (2) that are away from each other, and is used to conduct the current of the wire hole (6) and the tongue piece (9).
2. The CAN bus connection interface according to claim 1, characterized in that: A cavity is provided in the sub-box (1) on the left side of the wire handle A (3), and a one-way valve (5) is connected to the cavity.
3. The CAN bus connection interface according to claim 1, characterized in that: Two upper and lower clamping springs (11) are arranged in the wire hole (6), and the two clamping springs (11) are respectively fixed to the upper and lower walls of the wire hole (6). When the tongue piece (9) is inserted into the wire hole (6), the two clamping springs (11) can clamp the tongue piece (9).
4. The CAN bus connection interface according to claim 1, characterized in that: Limiting bars (12) are fixedly mounted on the middle of the upper and lower walls of the sub-box (1) and on the right side of the wire handle A (3).
5. The CAN bus connection interface according to claim 4, characterized in that: The upper and lower walls of the wire handle B (8) are both provided with limiting grooves (13), and the limiting grooves (13) cooperate with the limiting strips (12).
6. The CAN bus connection interface according to claim 1, characterized in that: An L-shaped clamping strip A (14) is fixedly mounted on the outer surface of the sub-box (1), and a ratchet groove is provided on a side of the clamping strip A (14) close to the sub-box (1).
7. The CAN bus connection interface according to claim 6, characterized in that: The outer surface of the mother box (2) is fixedly mounted with an L-shaped clamping strip B (15), and a ratchet groove is provided on a side of the clamping strip B (15) away from the mother box (2). When the clamping strip B (15) is inserted under the clamping strip A (14), the ratchet groove can fix the two.
8. The CAN bus connection interface according to claim 7, characterized in that: There are four of each of the clamping strips A (14) and the clamping strips B (15).