An exhaust copper pipe protection structure for a direct current contactor

Abstract

The utility model discloses a kind of exhaust copper pipe protection structures for DC contactor, the exhaust copper pipe protection structure for DC contactor includes shell, and end cap fixed on shell, airtight cover, the inner wall both sides of the airtight cover are equipped with fixed hole, the inner wall both sides of the airtight cover are equipped with recess, and with fixed hole cross arrangement, the end cap is equipped with the buckle with elasticity, the buckle is buckled in fixed hole, the end cap is equipped with clamping post, and is inserted in recess, and with the side wall of recess mutually abutting, the shell is equipped with exhaust copper pipe, and passes through end cap, the exhaust copper pipe is arranged in the inside of airtight cover. By recess cooperation clamping post, by preventing stupid design and making buckle smoothly enter into fixed hole, reduce assembly difficulty, simultaneously, by buckle type connection and improve assembly efficiency, and then effectively protect exhaust copper pipe, make it from impact, dust, water inflow etc.

Description

Technical Field

[0001] This utility model relates to the field of direct contactor technology, and in particular to a protective structure for the exhaust copper pipe of a DC contactor. Background Technology

[0002] Engineering vehicles are typically used in harsh operating conditions, which places very strict requirements on the protection level of DC contactors. The protection level of a DC contactor varies depending on its structural design, resulting in differences in the protection processes employed.

[0003] Traditional DC contactor exhaust pipe protection often uses airtight covers fixed with adhesive. However, when the adhesive ages, the airtight covers are prone to falling off, causing the exhaust steel pipe to lose its protection. Furthermore, the adhesion and amount of adhesive are difficult to control, which increases manufacturing difficulty and cost. Therefore, the applicant has made a beneficial design and found a solution to the above problems. The technical solution to be introduced below is generated in this context. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the protection design of traditional direct contactors and to provide a product that can be quickly assembled and has reduced manufacturing costs.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] An exhaust copper pipe protective structure for a DC contactor includes a housing, an end cap and an airtight cover fixed to the housing. The airtight cover has fixing holes on both sides of its inner wall and grooves on both sides of its inner wall, which are arranged intersecting with the fixing holes. The end cap has a resilient buckle that snaps into the fixing hole. The end cap has a locking post that is inserted into the groove and abuts against the side wall of the groove. An exhaust copper pipe is disposed inside the housing and passes through the end cap. The exhaust copper pipe is disposed inside the airtight cover and is located at the center of the buckle and the locking post.

[0007] Preferably, the locking post has a first inclined surface for guiding the groove into it.

[0008] Preferably, the groove has a second inclined surface corresponding to the first inclined surface.

[0009] Preferably, the buckle includes an elastic part, the outer wall of the elastic part is provided with a buckle block and is pressed into the fixing hole, the buckle block is provided with a third inclined surface, and a gap is left between the buckle block and the fixing hole for gas medium to flow.

[0010] Preferably, the outer wall of the airtight cover is provided with a number of equally spaced inner grooves evenly distributed around a dot as the axis, and is positioned above the fixing hole.

[0011] Beneficial effects:

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model uses a groove and a locking post, and a foolproof design to allow the buckle to smoothly enter the fixing hole, reducing assembly difficulty. At the same time, the buckle connection improves assembly efficiency and effectively protects the exhaust copper pipe from impact, dust, water ingress, etc., giving the product the advantages of quick assembly and reduced manufacturing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the exhaust copper pipe protection structure for a DC contactor according to the present invention.

[0015] Figure 2 This is an exploded view of the exhaust copper pipe protection structure for a DC contactor according to the present invention.

[0016] Figure 3 This is a side cross-sectional view of the exhaust copper pipe protection structure for a DC contactor according to the present invention.

[0017] Figure 4 This is a side cross-sectional view of the airtight cover of the exhaust copper pipe protection structure for a DC contactor according to the present invention.

[0018] Figure 5 This is a schematic diagram of the end cap of the exhaust copper pipe protection structure for a DC contactor according to the present invention;

[0019] The correspondence between the labels and component names in the attached figures is as follows:

[0020] Reference numerals: 1. Shell; 2. End cap; 3. Airtight cap; 4. Exhaust copper pipe; 21. Buckle; 22. Locking post; 211. Elastic part; 212. Buckle block; 213. Third inclined surface; 221. First inclined surface; 31. Fixing hole; 32. Groove; 33. Inner groove; 321. Second inclined surface. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0024] Reference example Figures 1 to 5 An exhaust copper pipe protection structure for a DC contactor includes a housing 1, an end cap 2 and an airtight cap 3 fixed on the housing 1. The airtight cap 3 has fixing holes 31 on both sides of its inner wall and grooves 32 on both sides of its inner wall, which are arranged intersecting with the fixing holes 31. The end cap 2 has a flexible buckle 21 that is snapped into the fixing hole 31. The end cap 2 has a locking post 22 that is inserted into the groove 32 and abuts against the side wall of the groove 32. An exhaust copper pipe 4 is provided inside the housing 1 and passes through the end cap 2. The exhaust copper pipe 4 is located inside the airtight cap 3 and is located at the center of the buckle 21 and the locking post 22. The buckle 21 is smoothly inserted into the fixing hole 31 through the groove 32 cooperating with the locking post 22 and the foolproof design, which reduces the assembly difficulty. At the same time, the buckle 21 connection improves the assembly efficiency and effectively protects the exhaust copper pipe 4 from impact, dust, water ingress and other effects.

[0025] It is worth mentioning that the locking post 22 is provided with a first inclined surface 221 for guiding the groove 32 into it, and the first inclined surface 221 plays a guiding role;

[0026] It is worth mentioning that the groove 32 is provided with a second inclined surface 321 corresponding to the first inclined surface 221. The second inclined surface 321 serves to strengthen the structural strength of the groove 32 and prevent unauthorized personnel from accidentally rotating the airtight cover 3.

[0027] It is worth mentioning that the buckle 21 includes an elastic part 211. The outer wall of the elastic part 211 is provided with a buckle block 212, which is pressed into the fixing hole 31. The buckle block 212 is provided with a third inclined surface 213. A gap is left between the buckle block 212 and the fixing hole 31 for the gas medium to flow. When the airtight cover 3 abuts against the third inclined surface 213 and applies downward pressure to the airtight cover 3, the elastic part 211 is squeezed and shrinks towards the center of the exhaust copper pipe 4 until the buckle block 212 coincides with the fixing hole 31. Then the elastic part 211 releases its elastic force and the buckle block 212 is pressed into the fixing hole 31. The main function of the exhaust copper pipe 4 is to discharge the gas generated inside the equipment and prevent the gas from accumulating inside the equipment, thereby avoiding equipment failure or damage caused by excessive gas pressure. The gap here plays the role of pressure relief.

[0028] It is worth mentioning that the outer wall of the airtight cover 3 is provided with several equally spaced inner grooves 33 evenly distributed around the dot as the axis, and is set above the fixing hole 31. The inner grooves 33 facilitate the user's operation of the airtight cover 3, increasing the contact area and friction.

[0029] The above design scheme can enable products to be assembled quickly and reduce manufacturing costs.

[0030] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A protective structure for the exhaust copper pipe of a DC contactor, comprising a housing (1), an end cap (2) and an airtight cap (3) fixed to the housing (1), characterized in that: The airtight cover (3) has fixing holes (31) on both sides of its inner wall. The airtight cover (3) has grooves (32) on both sides of its inner wall, which are arranged in a cross pattern with the fixing holes (31). The end cover (2) has elastic buckles (21) that are snapped into the fixing holes (31). The end cover (2) has a locking post (22) that is inserted into the groove (32) and abuts against the side wall of the groove (32). The housing (1) has an exhaust copper pipe (4) that passes through the end cover (2). The exhaust copper pipe (4) is located inside the airtight cover (3) and is located at the center of the buckle (21) and the locking post (22).

2. The exhaust copper pipe protection structure for a DC contactor according to claim 1, characterized in that: The locking post (22) is provided with a first inclined surface (221) for guiding the groove (32) into it.

3. The exhaust copper pipe protection structure for a DC contactor according to claim 2, characterized in that: The groove (32) is provided with a second inclined surface (321) corresponding to the first inclined surface (221).

4. The exhaust copper pipe protection structure for a DC contactor according to claim 1, characterized in that: The buckle (21) includes an elastic part (211), the outer wall of which is provided with a buckle block (212) and is pressed into the fixing hole (31). The buckle block (212) is provided with a third inclined surface (213), and a gap is left between the buckle block (212) and the fixing hole (31) for gas medium to flow.

5. The exhaust copper pipe protection structure for a DC contactor according to claim 1, characterized in that: The outer wall of the airtight cover (3) is provided with several equally spaced inner grooves (33) evenly distributed around the dot as the axis, and is located above the fixing hole (31).

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