Impact-resistant current sensor shell

Abstract

The utility model relates to the technical field of sensors, and provides an impact-resistant current sensor shell which comprises a lower shell, and the top of the lower shell is movably provided with an upper shell through a hinge. According to the utility model, the potentiometer is protected through the protection plate and the protection frame, so that the protection plate and the protection frame are subjected to an acting force towards the direction of the potentiometer, the collision force borne by the protection plate and the protection frame can be buffered under the reset acting force of the spring II, and the potentiometer can be operated by rotating the protection plate upwards; when the current sensor is in use, a protection plate is loosened, and the protection plate rotates downwards and is clamped into a clamping groove under the reset acting force of a third spring, so that the potentiometer of the lower shell can be prevented from being collided, impacted and damaged, the normal use of the current sensor is ensured, and the service life of the current sensor is prolonged; and the potentiometer can be conveniently operated by a user.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a housing for an impact-resistant current sensor. Background Technology

[0002] A current sensor is an electronic device used to detect and measure current, converting current signals into recognizable voltage or digital signals. Its core function is to monitor current changes in a circuit in real time, and it is widely used in power systems, industrial automation, electric vehicles, and new energy fields.

[0003] In existing technology, current sensors consist of an upper housing and a lower housing. The upper and lower housings respectively house a secondary coil and a primary coil. The upper and lower housings are connected by a hinge structure. When it is necessary to detect the cable current, tools are needed to loosen the screws connecting the upper and lower housings, then place the cable between the upper and lower housings, and then tighten the screws. This process is quite cumbersome, resulting in low efficiency in cable current detection. Furthermore, the current sensor lacks a protective structure. During use, the potentiometer may be damaged due to impacts, affecting the normal operation of the current sensor and reducing its lifespan. Utility Model Content

[0004] The purpose of this invention is to address the problem in existing technologies where current sensors consist of an upper housing and a lower housing, with a secondary coil and a primary coil respectively housed inside. The upper and lower housings are connected by a hinge-like structure. When it is necessary to detect cable current, tools are needed to loosen the screws connecting the upper and lower housings, insert the cable between the housings, and then tighten the screws. This process is cumbersome, resulting in low efficiency for cable current detection. Furthermore, the current sensor lacks a protective structure, and its potentiometer may be damaged due to impacts during use, affecting its normal operation and reducing its lifespan.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a shock-resistant current sensor housing, comprising: a lower housing, wherein an upper housing is movably mounted on the top of the lower housing via a hinge, and further comprising:

[0006] Two fixed plates are fixedly connected to opposite sides of the lower housing. A movable rod is slidably connected inside the fixed plate. One end of the movable rod is fixedly connected to a fixed plate. A protective frame is fixedly connected to the opposite side of the two fixed plates. A spring is provided on the outer surface of the movable rod. Two fixed blocks are symmetrically fixedly connected to the top of the protective frame. A round rod is rotatably connected inside the two fixed blocks. Protective plates are fixedly connected to both ends of the round rod. Two springs are symmetrically provided on the outer surface of the round rod.

[0007] Preferably, the two ends of the second spring are fixedly connected to the first fixing plate and the second fixing plate, respectively, and the two ends of the third spring are fixedly connected to the second fixing block and the protective plate, respectively.

[0008] Preferably, two guide rods are symmetrically fixedly connected to one side of the lower housing, and a fixing block is fixedly connected to the opposite side of the protective frame. The fixing block is slidably connected to the guide rods.

[0009] Preferably, a slot is provided on one side of the protective frame, the outer surface of the protective plate is movably connected to the inside of the slot, and a transparent window is provided on one side of the protective plate.

[0010] Preferably, an upper connecting block is fixedly connected to the outer surface of the upper housing, a limit rod is fixedly connected to the bottom of the upper connecting block, and a lower connecting block is fixedly connected to the outer surface of the lower housing.

[0011] Preferably, the top of the lower connecting block is provided with a sliding groove, the bottom of the inner wall of the sliding groove is provided with a straight groove, the outer surface of the limiting rod is movably connected to the inside of the straight groove, and the diameter of the lower end of the limiting rod is equal to the diameter of the inner wall of the straight groove.

[0012] Preferably, two guide rods are symmetrically fixedly connected to one side of the inner wall of the slide groove, and a T-shaped slider is slidably connected inside the slide groove. The T-shaped slider is slidably connected to the two guide rods, and a U-shaped opening is provided on one side of the T-shaped slider. The diameter of the inner wall of the U-shaped opening is equal to the diameter of the upper end of the limiting rod.

[0013] Preferably, a spring is provided on the outer surface of the guide rod, and the spring is fixedly connected to the lower connecting block and the T-shaped slider respectively. A pull rod is fixedly connected to the other side of the T-shaped slider.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. This utility model protects the potentiometer with a protective plate and frame, subjecting them to a force in the direction of the potentiometer. Simultaneously, the fixed plate and movable rod move to one side, compressing the spring. The spring's restoring force buffers the impact force on the protective plate and frame. Simultaneously, the fixed block slides along the outer surface of the guide rod towards the lower housing. When the potentiometer needs to be operated, rotating the protective plate upwards rotates the rod at an appropriate angle, simultaneously twisting the spring. After operation, the protective plate can be released, allowing it to rotate downwards under the restoring force of the spring and engage in the slot. The transparent window allows operators to easily observe the potentiometer's position on the lower housing. This not only prevents the potentiometer from being damaged by impacts, ensuring the normal operation of the current sensor and extending its lifespan, but also facilitates user operation.

[0016] 2. In this utility model, by pulling the lever outward by hand, the T-shaped slider moves outward along the outer surface of the guide rod, simultaneously stretching the spring. This causes the U-shaped opening of the T-shaped slider to move away from the outer surface of the limiting rod, releasing the limiting rod. At this point, the upper housing can be rotated upward, disengaging the limiting rod from the inside of the straight slot. Then, the cable is placed into the lower and upper housings, and the lower and upper housings are closed. The limiting rod is now inserted into the straight slot. Releasing the lever again allows the T-shaped slider to slide along the outer surface of the guide rod into the groove under the restoring force of the spring, so that the U-shaped opening of the T-shaped slider fits onto the upper end of the limiting rod, thus limiting the limiting rod. This keeps the lower and upper housings relatively fixed, eliminating the need for screws to fix the lower and upper housings and the need for tools to loosen and tighten bolts. This is simpler and more convenient, thereby improving the efficiency of cable current detection. Attached Figure Description

[0017] Figure 1 A side view of the impact-resistant current sensor housing provided by this utility model;

[0018] Figure 2 This utility model provides a shock-resistant current sensor housing. Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 A schematic diagram of a T-shaped slider structure for an impact-resistant current sensor housing provided by this utility model;

[0020] Figure 4 A partial cross-sectional structural diagram of an impact-resistant current sensor housing provided by this utility model;

[0021] Figure 5 This is a schematic diagram of the lower housing structure of an impact-resistant current sensor housing provided by this utility model.

[0022] Legend:

[0023] 1. Lower housing; 101. Upper housing; 102. Upper connecting block; 103. Lower connecting block; 104. Slide groove; 105. Straight groove opening; 106. Guide rod one; 107. Spring one; 108. T-shaped slider; 109. U-shaped opening; 110. Pull rod; 111. Limiting rod; 2. Fixing plate one; 201. Movable rod; 202. Fixing plate two; 203. Spring two; 204. Protective frame; 205. Protective plate; 206. Guide rod two; 207. Fixing block one; 208. Fixing block two; 209. Round rod; 210. Spring three. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Examples, such as Figure 1-5 As shown, this utility model provides a shock-resistant current sensor housing, including: a lower housing 1, an upper housing 101 movably mounted on the top of the lower housing 1 via a hinge, and two fixing plates 2, respectively fixedly connected to opposite sides of the lower housing 1. A movable rod 201 is slidably connected inside the fixing plate 2, and a fixing plate 202 is fixedly connected to one end of the movable rod 201. A protective frame 204 is fixedly connected to the opposite side of the two fixing plates 202. A spring 203 is provided on the outer surface of the movable rod 201. Two fixing blocks 208 are symmetrically fixedly connected to the top of the protective frame 204. A round rod 209 is rotatably connected inside the two fixing blocks 208. Protective plates 205 are fixedly connected to both ends of the round rod 209. Two springs 210 are symmetrically provided on the outer surface of the round rod 209.

[0027] Furthermore, such as Figure 1-5As shown, the two ends of spring 203 are fixedly connected to fixed plate 2 and fixed plate 202 respectively, and the two ends of spring 3 210 are fixedly connected to fixed block 208 and protective plate 205 respectively. The setting of spring 203 plays a certain buffering effect, and the setting of spring 3 210 can make the protective plate 205 rotate to the front side of the protective frame 204.

[0028] Furthermore, such as Figure 1-5 As shown, two guide rods 206 are symmetrically fixedly connected to one side of the lower housing 1, and a fixing block 207 is fixedly connected to the opposite side of the protective frame 204. The fixing block 207 is slidably connected to the guide rods 206. The guide rods 206 provide a certain guiding effect on the fixing block 207.

[0029] Furthermore, such as Figure 1-5 As shown, a slot is provided on one side of the protective frame 204, and the outer surface of the protective plate 205 is movably connected to the inside of the slot. A transparent window is provided on one side of the protective plate 205. The slot provides a certain limiting effect on the protective plate 205, and the transparent window allows the user to easily observe the position of the potentiometer.

[0030] Furthermore, such as Figure 1-5 As shown, an upper connecting block 102 is fixedly connected to the outer surface of the upper housing 101, and a limit rod 111 is fixedly connected to the bottom of the upper connecting block 102. A lower connecting block 103 is fixedly connected to the outer surface of the lower housing 1. With the above arrangement, the upper connecting block 102 and the lower connecting block 103 can be separated or closed.

[0031] Furthermore, such as Figure 1-5 As shown, the top of the lower connecting block 103 is provided with a sliding groove 104, and the bottom of the inner wall of the sliding groove 104 is provided with a straight groove 105. The outer surface of the limiting rod 111 is movably connected to the inside of the straight groove 105. The diameter of the lower end of the limiting rod 111 is equal to the diameter of the inner wall of the straight groove 105. With the above arrangement, the limiting rod 111 can be inserted into the straight groove 105.

[0032] Furthermore, such as Figure 1-5 As shown, two guide rods 106 are symmetrically fixedly connected to one side of the inner wall of the slide groove 104. A T-shaped slider 108 is slidably connected inside the slide groove 104. The T-shaped slider 108 is slidably connected to the two guide rods 106. A U-shaped opening 109 is provided on one side of the T-shaped slider 108. The diameter of the inner wall of the U-shaped opening 109 is equal to the diameter of the upper end of the limiting rod 111. With the above arrangement, the T-shaped slider 108 can slide to one side along the outer surface of the guide rods 106. When the U-shaped opening 109 of the T-shaped slider 108 is fitted onto the upper end of the limiting rod 111, the limiting rod 111 can be limited.

[0033] Furthermore, such as Figure 1-5 As shown, a spring 107 is provided on the outer surface of the guide rod 106. The spring 107 is fixedly connected to the lower connecting block 103 and the T-shaped slider 108 respectively. A pull rod 110 is fixedly connected to the other side of the T-shaped slider 108. Under the reset force of the spring 107, the T-shaped slider 108 can slide into the groove 104. The pull rod 110 facilitates the pulling of the T-shaped slider 108.

[0034] Working principle: In use, when the cable needs to be placed between the lower housing 1 and the upper housing 101, the pull rod 110 is pulled outward by hand, causing the T-shaped slider 108 to move outward along the outer surface of the guide rod 106. Simultaneously, the spring 107 is stretched, causing the U-shaped opening 109 of the T-shaped slider 108 to move away from the outer surface of the limiting rod 111, releasing the limiting rod 111. At this time, the upper housing 101 can be rotated upward to disengage the limiting rod 111 from the inside of the straight slot 105. Then, the cable is placed into the lower housing 1 and the upper housing 101, and the lower housing 1 and the upper housing 101 are closed. At this time, the limiting rod 111 is inserted into the straight groove 105, and then the pull rod 110 is released, so that the T-shaped slider 108 slides along the outer surface of the guide rod 106 towards the inside of the groove 104 under the reset force of the spring 107, so that the U-shaped opening 109 of the T-shaped slider 108 fits onto the upper end of the limiting rod 111, limiting the limiting rod 111, thus keeping the lower housing 1 and the upper housing 101 in a relatively fixed state. In this way, there is no need to use screws to fix the lower housing 1 and the upper housing 101, and there is no need to use tools to loosen and tighten bolts, which is simpler and more convenient, thereby improving the efficiency of cable current detection. When the potentiometer side of housing 1 is impacted, the potentiometer can be protected by the protective plate 205 and the protective frame 204. The protective plate 205 and the protective frame 204 are subjected to a force in the direction of the potentiometer, simultaneously causing the fixed plate 202 and the movable rod 201 to move to one side, compressing the spring 203. The restoring force of the spring 203 buffers the impact force on the protective plate 205 and the protective frame 204. Simultaneously, the fixed block 207 slides along the outer surface of the guide rod 206 towards the lower housing 1 side. When the potentiometer needs to be operated, the protective plate 205 is rotated upwards. The round rod 209 can be rotated at an appropriate angle, simultaneously causing the spring 210 to twist. At this time, the potentiometer can be operated. After the operation is completed, the protective plate 205 can be released, and under the reset force of the spring 210, the protective plate 205 will rotate downward and be locked into the slot. The transparent window allows the operator to easily observe the position of the potentiometer in the lower housing 1. This not only prevents the potentiometer in the lower housing 1 from being damaged by collisions, thus ensuring the normal use of the current sensor and improving its service life, but also makes it convenient for the user to operate the potentiometer.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A surge-resistant current sensor housing, comprising: A lower housing (1), the top of which is movably mounted with an upper housing (101) via a hinge, characterized in that it further comprises: Two fixed plates (2) are fixedly connected to opposite sides of the lower housing (1). A movable rod (201) is slidably connected inside the fixed plate (2). A fixed plate (202) is fixedly connected to one end of the movable rod (201). A protective frame (204) is fixedly connected to the opposite side of the two fixed plates (202). A spring (203) is provided on the outer surface of the movable rod (201). Two fixed blocks (208) are symmetrically fixedly connected to the top of the protective frame (204). A round rod (209) is rotatably connected inside the two fixed blocks (208). A protective plate (205) is fixedly connected to both ends of the round rod (209). Two springs (210) are symmetrically provided on the outer surface of the round rod (209).

2. The impact-resistant current sensor housing according to claim 1, characterized in that: The two ends of the second spring (203) are fixedly connected to the first fixing plate (2) and the second fixing plate (202) respectively, and the two ends of the third spring (210) are fixedly connected to the second fixing block (208) and the protective plate (205) respectively.

3. The impact-resistant current sensor housing according to claim 1, characterized in that: Two guide rods (206) are symmetrically fixedly connected to one side of the lower housing (1), and a fixing block (207) is fixedly connected to the opposite side of the protective frame (204). The fixing block (207) is slidably connected to the guide rod (206).

4. The impact-resistant current sensor housing according to claim 3, characterized in that: A slot is provided on one side of the protective frame (204), and the outer surface of the protective plate (205) is movably connected to the inside of the slot. A transparent window is provided on one side of the protective plate (205).

5. The impact-resistant current sensor housing according to claim 3, characterized in that: An upper connecting block (102) is fixedly connected to the outer surface of the upper housing (101), and a limit rod (111) is fixedly connected to the bottom of the upper connecting block (102). A lower connecting block (103) is fixedly connected to the outer surface of the lower housing (1).

6. The impact-resistant current sensor housing according to claim 5, characterized in that: The top of the lower connecting block (103) is provided with a sliding groove (104), and the bottom of the inner wall of the sliding groove (104) is provided with a straight groove (105). The outer surface of the limiting rod (111) is movably connected to the inside of the straight groove (105), and the diameter of the lower end of the limiting rod (111) is equal to the diameter of the inner wall of the straight groove (105).

7. The impact-resistant current sensor housing according to claim 6, characterized in that: Two guide rods (106) are symmetrically fixedly connected to one side of the inner wall of the slide groove (104). A T-shaped slider (108) is slidably connected inside the slide groove (104). The T-shaped slider (108) is slidably connected to the two guide rods (106). A U-shaped opening (109) is provided on one side of the T-shaped slider (108). The diameter of the inner wall of the U-shaped opening (109) is equal to the diameter of the upper end of the limiting rod (111).

8. The impact-resistant current sensor housing according to claim 7, characterized in that: A spring (107) is provided on the outer surface of the guide rod (106). The spring (107) is fixedly connected to the lower connecting block (103) and the T-shaped slider (108) respectively. A pull rod (110) is fixedly connected to the other side of the T-shaped slider (108).

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