Novel housing for safety series resistor

Abstract

The utility model relates to the field of resistor shells, and discloses a novel shell for a safety series resistor, which comprises a shell body, the shell body is provided with a groove for accommodating the resistor, two sides in the groove are respectively provided with a supporting part, each supporting part comprises two symmetrically arranged elastic telescopic rods, and the elastic telescopic rods are arranged in the groove. Each elastic telescopic rod comprises a telescopic section and a connecting section, the telescopic sections of the two elastic telescopic rods abut against each other, the connecting sections are detachably connected to the shell, the side faces of the telescopic sections are curved surfaces, and gaps exist between the telescopic sections and the side walls of the grooves. According to the utility model, the elastic telescopic rod is arranged in the groove so as to limit the connecting part of the resistor and the wire or support the connecting part of the resistor and the wire, thereby ensuring that the resistor can be stably arranged in the groove; the side surface of the telescopic section is designed to be a curved surface, and the corner of the notch of the groove is designed to be a round corner, thereby reducing the wear of the outer side of the wire.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of resistance shell especially relates to a new shell for safety series resistance. BACKGROUND

[0002] As a common basic element in electronic circuit, resistor is widely used in the adjustment and control of current and voltage. Usually, the two ends of the resistor need to be connected with external circuit through wires to realize the transmission and control of current. However, in many practical application scenarios, especially in outdoor or industrial environment, the waterproof protection measures of the connection part of the wires and the resistor are insufficient, which can easily lead to short circuit, corrosion or performance decline of the circuit, and further affect the normal operation and service life of the circuit.

[0003] At present, the two ends of the resistor are usually directly connected with wires, and lack effective waterproof design. Although some resistors have waterproof shell or coating outside, these waterproof measures are mainly concentrated on the outside of the resistor, and the waterproof effect of the connection part of the wires and the end of the resistor is still insufficient. Therefore, how to effectively prevent water from entering the connection part of the resistor and improve its waterproof performance has become a technical problem to be solved. SUMMARY

[0004] The purpose of the present application is to provide a new shell for safety series resistance to solve the problem of poor waterproofness of the connection part of the existing resistor and wires. The specific technical solution is as follows:

[0005] A new shell for safety series resistance, comprising a shell body, the shell body is provided with a recess for accommodating the resistor, both sides of the inside of the recess are provided with a support part, the support part comprises two symmetrically arranged elastic expansion rods, the elastic expansion rod comprises an expansion section and a connecting section, the expansion sections of the two elastic expansion rods abut each other, the connecting section is detachably connected to the shell body, the side surface of the expansion section is curved, and there is a gap between the expansion section and the side wall of the recess.

[0006] As one of the improvements of the above technical solution, the slot edge angle of the recess is a round angle.

[0007] As one of the improvements of the above technical solution, the rear end face of the expansion section is provided with a mounting groove, the front end of the connecting section extends into the mounting groove, and a spring is connected between the front end face of the connecting section and the inner wall of the mounting groove.

[0008] As one of the improvements of the above technical solution, the rear end of the connecting section penetrates the shell body, and a nut is arranged on the connecting section outside the shell body and is screwed with the connecting section.

[0009] As one of the improvements of the above technical solutions, the connecting section is connected with a baffle, and the baffle is arranged against the side wall of the groove.

[0010] As one of the improvements of the above technical solutions, a guide rod is vertically connected to the baffle, and the telescopic section is provided with a sliding groove for mounting the guide rod.

[0011] As one of the improvements of the above technical solutions, an opening is arranged on the shell for mounting the connecting section, the opening is in a rounded rectangular shape, and the baffle covers the opening.

[0012] As one of the improvements of the above technical solutions, the bottom of the front end of the telescopic section is gradually tapered towards the top of the front end to form an inclined surface.

[0013] The beneficial effects of the present application are as follows: the elastic telescopic rod arranged in the groove can limit or support the connection part of the resistor and the wire, and the resistor can be stably placed in the groove.

[0014] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application, of course, the implementation of any product or method of the present application does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Fig. 1 is a structural schematic diagram of the present application.

[0017] Fig. 2 is a structural schematic diagram of the groove of the present application.

[0018] Fig. 3 is a structural schematic diagram of the elastic telescopic rod of the present application.

[0019] In the figure: 1, shell; 2, groove; 3, elastic telescopic rod; 31, telescopic section; 32, connecting section; 33, mounting groove; 34, spring; 35, nut; 36, baffle; 37, inclined surface; 38, guide rod; 39, sliding groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] Reference to“an embodiment” or“the embodiment” in this text means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment nor are they necessarily mutually exclusive or alternative embodiments. It is explicitly contemplated that embodiments described herein can be combined with other embodiments.

[0022] Please refer to Figs. 1-3 In the embodiments of the present application, a novel shell for safety series resistance includes a shell body 1, the shell body 1 is provided with a groove 2 for accommodating the resistance, both sides of the inside of the groove 2 are provided with support parts, the support parts include two symmetrically arranged elastic telescopic rods 3, wherein the specific function of the elastic telescopic rods 3 is to support the connection part of the resistance and the wire, through the elastic effect of the elastic telescopic rods 3, after the resistance enters the groove 2, the connection part of the resistance and the wire can first press the elastic telescopic rods 3, so that the elastic telescopic rods 3 shrink, after the connection part of the resistance and the wire passes, the elastic telescopic rods 3 reset due to their own elasticity, thereby limiting or supporting the connection part of the resistance and the wire, which can effectively fix the connecting wires at both ends of the resistance, ensuring the stability of the resistance entering the shell body 1;

[0023] In some embodiments, the elastic telescopic rods 3 include telescopic segments 31 and connecting segments 32, the telescopic segments 31 of the two elastic telescopic rods 3 abut each other, the connecting segments 32 are detachably connected to the shell body 1, the side surface of the telescopic segment 31 is curved, and there is a gap between the telescopic segment 31 and the side wall of the groove 2. It can be understood that, since the wires at both ends of the resistance need to be bent to be led out of the groove 2 after passing through the telescopic segment 31, a space is reserved between the telescopic segment 31 and the side wall of the groove 2 for leading out the wires. In addition, the side surface of the telescopic segment 31 is designed as a curved surface, which can reduce the wear on the outside of the wire. Preferably, the front end bottom of the telescopic segment 31 gradually shrinks toward the front end top to form an inclined surface 37. Through the gradual shrinking design of the inclined surface 37, better guidance can be provided when the wire enters, so that the wire and the resistor connection part can be more easily pushed away from the two abutting elastic telescopic rods 3, facilitating the insertion of the wire into the groove 2.

[0024] In addition, the notch corner of the groove 2 also needs to be designed as a rounded corner, and it can be understood that the electric wire will be bent twice in addition to being bent once in the groove 2, and it is necessary to make the notch corner as a rounded corner to reduce the wear of the electric wire.

[0025] The telescopic structure of the elastic telescopic rod 3 is as follows:

[0026] The rear end face of the telescopic section 31 is provided with a mounting groove 33, the front end of the connecting section 32 extends into the mounting groove 33, a spring 34 is connected between the front end face of the connecting section 32 and the inner wall of the mounting groove 33, and the rear end of the connecting section 32 penetrates through the shell 1 and is arranged on the outside of the shell 1. The connecting section 32 is provided with a nut 35 which is screwed with the connecting section 32. Through the spring 34, the telescopic section 31 can be reset quickly after the electric wire is connected with the resistor.

[0027] In some embodiments, the shell 1 is provided with an opening for mounting the connecting section 32, and the opening is a rounded rectangular shape. In this embodiment, the opening is arranged vertically. Through the opening, the height of the connecting section 32 can be adjusted. Specifically, by loosening the nut 35, the height of the connecting section 32 can be adjusted. After the connecting section 32 is adjusted to the appropriate position, the nut 35 is tightened to lock the nut 35 tightly against the outside of the shell 1. The height of the connecting section 32 is adjusted to accommodate the excess electric wire or match the electric resistance of different sizes.

[0028] Since the opening arranged on the shell 1 will affect the waterproof effect of the side of the shell 1, the utility model also provides an embodiment to solve the above problem. Specifically, the connecting section 32 is connected with a baffle 36 which is arranged against the side wall of the groove 2 and covers the opening. It should be noted that the area of the baffle 36 is larger than the area of the opening. No matter where the connecting section 32 is moved, the baffle 36 can completely cover the opening to prevent dust or water from entering the inside of the shell 1.

[0029] In some embodiments, the baffle 36 is vertically connected with a guide rod 38, and the telescopic section 31 is provided with a sliding groove 39 for mounting the guide rod 38. On the basis of the above baffle 36, the guide rod 38 arranged on the baffle 36 cooperates with the telescopic section 31 to provide a guiding effect for the telescopic section 31. The arrangement of the guide rod 38 ensures that the telescopic section 31 can move stably along the predetermined direction during the telescopic process, avoids the deviation or jamming of the telescopic section 31, and also avoids the wear caused by the instability of the telescopic section 31. In addition, the guide rod 38 also plays a role in preventing the telescopic section 31 from deviating due to vibration or external interference.

[0030] It should be noted that the terms "first", "second" and the like in the description and in the claims of the application are used only to describe different instances and do not imply or suggest relative importance or a specific number of the indicated technical characteristics. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the said features.

[0031] The terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like in the description indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0032] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in any respect, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A novel housing for a safety-compliant series resistor, characterized in that, The device includes a housing with a groove for accommodating the resistor. Supports are provided on both sides of the groove. Each support includes two symmetrically arranged elastic telescopic rods. Each elastic telescopic rod includes a telescopic section and a connecting section. The telescopic sections of the two elastic telescopic rods abut against each other. The connecting section is detachably connected to the housing. The side of the telescopic section is curved, and there is a gap between the telescopic section and the side wall of the groove.

2. The housing for a novel safety series resistor according to claim 1, characterized in that: The groove opening has rounded corners.

3. The housing for a novel safety series resistor according to claim 1, characterized in that: The telescopic section has a mounting groove on its rear end face, the connecting section extends into the mounting groove, and a spring connects the front end face of the connecting section to the inner wall of the mounting groove.

4. The housing for a novel safety series resistor according to claim 3, characterized in that: The rear end of the connecting section extends through the housing, and a nut that is threadedly connected to the connecting section is provided on the connecting section located on the outside of the housing.

5. The housing for a novel safety series resistor according to claim 4, characterized in that: The connecting section is connected to a baffle, which is disposed against the side wall of the groove.

6. The housing for a novel safety series resistor according to claim 5, characterized in that: A guide rod is vertically connected to the baffle, and the telescopic section is provided with a groove for installing the guide rod.

7. The housing for a novel safety series resistor according to claim 6, characterized in that: The housing has an opening for installing the connecting section. The opening is in the shape of a rounded rectangle, and the baffle covers the opening.

8. The housing for a novel safety series resistor according to claim 3, characterized in that: The bottom of the telescopic section gradually contracts towards the top of its front end to form an inclined surface.

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