Electricity meter with waterproof function

Abstract

The utility model relates to a coulombmeter with a waterproof function. The coulombmeter comprises a host and a detachable cable assembly. A rear shell body of the meter shell is provided with an inserting groove, and the groove bottom of the inserting groove is provided with a through hole which is communicated with an inner cavity of the meter shell and allows a cable to movably penetrate through. The cable assembly comprises a waterproof rubber block, a rubber block pressing plate and a cable with a plug, the waterproof rubber block is in interference fit with the inserting groove, the rubber block pressing plate is detachably and fixedly connected with the rear shell and presses the waterproof rubber block in the inserting groove, the waterproof rubber block is provided with a through penetrating hole, the cable penetrates through the penetrating hole of the waterproof rubber block, and the plug of the cable is inserted into the socket. By adopting the scheme, the host and the cable assembly are divided into two parts when a product is delivered, and can be assembled by a user; the waterproof rubber block is in interference fit with the insertion groove to form a good sealing / waterproof effect, and the sleeve hole of the rubber block pressing plate is in interference fit with the convex column of the waterproof rubber block, so that the convex column of the waterproof rubber block tightly holds a cable to form a good sealing and waterproof effect.

Description

Technical Field

[0001] This utility model relates to the field of power detection equipment technology, specifically, a power meter. Background Technology

[0002] To accurately detect battery charge, various battery meters have been introduced on the market. Existing technology discloses a device for displaying the battery charge of an electric vehicle (publication number CN108099610A), comprising a charge detection circuit connected to the electric vehicle battery, an A / D conversion module, a controller, and a display module. The charge detection circuit detects the battery voltage and sends the voltage information to the A / D conversion module. The A / D conversion module converts the received module signal into a digital pulse signal and sends it to the controller. The controller processes the received digital pulse signal and sends the processing result to the display module. The display module displays the voltage data.

[0003] Because users may need to adapt to different lengths of signal cables in different situations, and existing products cannot be disassembled, resulting in a fixed signal cable length, additional waterproof overhead plugs are needed to extend the signal cable. Utility Model Content

[0004] The purpose of this invention is to provide a waterproof power meter to solve the problems existing in the prior art.

[0005] The purpose of this utility model is achieved as follows: a waterproof power meter, including a main unit and a detachable cable assembly;

[0006] The main unit includes a watch case and a circuit board with a socket installed inside the watch case. The back side of the watch case is a rear housing. The rear housing is provided with a plug-in groove. The bottom of the plug-in groove has a through hole that communicates with the inner cavity of the watch case and allows a cable to pass through.

[0007] The cable assembly includes a waterproof rubber block, a rubber block pressure plate, and a cable with a plug. The waterproof rubber block is detachably inserted into a socket and has an interference fit with the socket. The rubber block pressure plate is detachably fixed to the rear housing and presses the waterproof rubber block into the socket. The waterproof rubber block has a through hole. The cable passes through the through hole of the waterproof rubber block and the cable plug is inserted into the socket.

[0008] Furthermore, the waterproof adhesive block includes an outwardly protruding post, the adhesive block pressure plate is provided with a sleeve hole, the post passes through the sleeve hole and is positioned and engaged with the sleeve hole, and the fitting hole passes through the post along the length of the post.

[0009] Furthermore, the protrusion is inserted into the matching hole in an interference fit manner.

[0010] Furthermore, the waterproof adhesive block also includes an insert block integrally formed with the protruding post. The insert block is detachably inserted into the insertion groove and is interference-fitted with the insertion groove. The through hole passes through the insert block, and the adhesive block pressure plate presses the insert block into the insertion groove.

[0011] Furthermore, the surface of the insert block facing the bottom of the insertion groove has multiple ribs protruding out. Under the pressure of the rubber block pressure plate, the ribs of the insert block form pressure contact with the surface of the bottom of the insertion groove and deform.

[0012] Furthermore, the outer wall of the plug and the inner wall of the plug groove form an interference fit along the radial direction of the cable.

[0013] Furthermore, two locking grooves based on the recessed outer wall of the rear housing are provided at the edge of the insertion groove. The two locking grooves are located on both sides of the edge of the insertion groove, and the two locking grooves are respectively inserted into the two sides of the rubber block pressure plate.

[0014] Furthermore, the adhesive block pressure plate seals the entire insertion slot, and the outer surface of the adhesive block pressure plate is flush with the outer wall of the rear housing.

[0015] Furthermore, the bottom of the locking groove is provided with a locking plate hole, and the rubber block pressure plate is equipped with two pressure plate fastening screws. The two pressure plate fastening screws pass through the rubber block pressure plate and are threaded into the locking plate holes of the two locking grooves respectively, so as to lock the rubber block pressure plate to the rear housing.

[0016] Furthermore, the socket and the cable are staggered in the radial direction of the cable.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. When the product is shipped, the main unit and the cable assembly (cable with plug + waterproof adhesive block + adhesive block pressure plate) are separated into two parts, which can be assembled by the user. The detachable structure of this patent allows the user to replace the signal cable himself, while ensuring the waterproof effect. Moreover, by adopting the solution of this utility model, the size of the packaging box can be compressed, achieving the purpose of energy saving, consumption reduction, low carbon and environmental protection.

[0019] 2. The insert of the waterproof rubber block and the insertion groove form an interference fit. After assembly, the insert of the waterproof rubber block is pressed by the rear shell and the rubber block pressure plate, and the ribs of the insert of the waterproof rubber block will be slightly deformed, so that the waterproof rubber block is inserted into the insertion groove in an interference fit manner, forming a good sealing effect and achieving a good waterproof effect.

[0020] 3. The sleeve hole of the rubber block pressure plate and the protrusion of the waterproof rubber block form an interference fit, which causes the protrusion to shrink radially under the squeezing action of the rubber block pressure plate. This drives the protrusion to squeeze the cable radially, thereby holding the cable tightly and forming a good sealing and waterproof effect. Attached Figure Description

[0021] Figure 1 This is a system layout diagram of this utility model.

[0022] Figure 2 This is a three-dimensional sectional view of the present invention.

[0023] Figure 3 yes Figure 2 Enlarged view of part A in the image.

[0024] Figure 4 This is an exploded view of the cable assembly. Detailed Implementation

[0025] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and 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.

[0026] like Figure 1 , 2 As shown, a waterproof power meter is proposed, including a main unit and a detachable cable assembly.

[0027] The aforementioned main unit includes a watch case 1 and a circuit board 7 with a socket 6 installed inside the watch case 1. The back side of the watch case 1 is a rear housing 1a, and the rear housing 1a is provided with a plug groove 1b. The bottom of the plug groove 1b has a through hole that communicates with the inner cavity of the watch case 1 and allows the cable 5 to pass through.

[0028] like Figure 3 , 4 As shown, the cable assembly includes a waterproof rubber block 2, a rubber block pressure plate 3, and a cable 5 with a plug. The waterproof rubber block 2 is detachably inserted into the plug groove 1b and is interference-fitted with the plug groove 1b. The rubber block pressure plate 3 is detachably fixed to the housing 1a and presses the waterproof rubber block 2 into the plug groove 1b. The waterproof rubber block 2 is provided with a through hole 2a. The cable 5 passes through the through hole 2a of the waterproof rubber block 2 and the plug of the cable 5 is inserted into the socket 6.

[0029] When the product is shipped, the main unit and the cable assembly (cable with plug 5 + waterproof adhesive block 2 + adhesive block pressure plate 3) are separated into two parts, which can be assembled by the user. Therefore, the size of the packaging box can be reduced, achieving the purpose of energy saving, consumption reduction, and low carbon environmental protection.

[0030] Because users may need to adapt signal cables of different lengths for different situations, previous products were not detachable, resulting in fixed signal cable lengths and requiring additional waterproof overhead connectors to extend the signal cables. This patented detachable structure allows users to replace the signal cables themselves while maintaining waterproof performance.

[0031] The aforementioned waterproof adhesive block 2 includes an outwardly protruding protrusion 2b. The adhesive block pressure plate 3 is provided with a sleeve hole 3a. The protrusion 2b passes through the sleeve hole 3a and is positioned and fitted with the sleeve hole 3a. The fitting hole 2a passes through the protrusion 2b along the length of the protrusion. The aforementioned protrusion 2b is inserted into the fitting hole 3a in an interference fit manner, so that the protrusion 2b is subjected to the squeezing action of the adhesive block pressure plate 3 and generates radial contraction, driving the protrusion 2b to squeeze the cable 5 radially, thereby tightening the cable 5.

[0032] The aforementioned waterproof adhesive block 2 also includes an insert block 2c integrally formed with the protrusion 2b. The insert block 2c is detachably inserted into the insertion groove 1b and is interference-fitted with the insertion groove 1b. The through hole 2a passes through the insert block 2c, and the adhesive block pressure plate 3 presses the insert block 2c into the insertion groove 1b.

[0033] like Figure 3 As shown, the surface of the insert 2c facing the bottom of the insertion groove 1b has multiple ribs 2d protruding out. Under the pressure of the rubber block pressure plate 3, the ribs 2d of the insert 2c form pressure contact with the surface of the bottom of the insertion groove 1b and deform.

[0034] The outer wall of the aforementioned plug 2c and the inner wall of the insertion groove 1b form an interference fit along the radial direction of the cable 5. That is, the plug 2c of the waterproof adhesive block 2 is slightly larger in size than the insertion groove 1b. After the fit is formed, the plug 2c of the waterproof adhesive block 2 will undergo a slight deformation, thereby enabling the waterproof adhesive block 2 to fit more tightly into the insertion groove 1b.

[0035] Two locking slots 1c are provided on the edge of the insertion slot 1b, which are recessed on the outer wall of the rear housing 1a. The two locking slots 1c are located on both sides of the edge of the insertion slot 1b, and the two locking slots 1c are respectively inserted into both sides of the rubber block pressure plate 3.

[0036] like Figure 1 As shown, the aforementioned rubber block pressure plate 3 seals the entire insertion groove 1b, and the outer surface of the rubber block pressure plate 3 is flush with the outer wall of the rear housing 1a.

[0037] As a preferred detachable solution, such as Figure 4 As shown, the bottom of the locking groove 1c is provided with a locking plate hole 1d, and the rubber block pressure plate 3 is provided with two pressure plate fastening screws 4. The two pressure plate fastening screws 4 pass through the rubber block pressure plate 3 and are threadedly engaged with the locking plate holes 1d of the two locking grooves 1c respectively, so as to lock the rubber block pressure plate 3 to the rear housing 1a.

[0038] In addition, the socket 6 and the cable 5 are staggered radially, and the through hole 2a of the waterproof adhesive block 2 is not directly opposite the socket 6. This causes the cable 5 to twist in an S-shape after passing through the through hole 2a before inserting the plug into the socket 6. This improvement has the following advantages:

[0039] When cable 5 is subjected to significant tension: 1) When the inner portion (S-shaped) of cable 5 is stretched taut, there will be a buffer distance in the outward direction of cable 5; 2) When the inner portion of cable 5 is taut, the plug experiences an upward force at the insertion point, the direction of which is perpendicular to the insertion direction of the cable 5 plug, preventing the plug from disengaging from socket 6 or being pulled loose. This ensures the reliability of the electrical connection between the plug of cable 5 and socket 6.

[0040] comprehensive Figure 1-4 As shown, this product has the following technical advantages:

[0041] 1. The insert 2c of the waterproof adhesive block 2 is interference-fitted with the insertion groove 1b. The thickness of the insert 2c of the waterproof adhesive block 2 is slightly greater than the height of the space formed by the insertion groove 1b and the adhesive block pressure plate 3. Therefore, after assembly, the insert 2c of the waterproof adhesive block 2 is pressed in the thickness direction by the rear shell 1a and the adhesive block pressure plate 3. The rib 2d of the insert 2c of the waterproof adhesive block 2 will be slightly deformed, so that the waterproof adhesive block 2 is inserted into the insertion groove 1b in an interference fit manner, forming a good sealing effect and achieving a good waterproof effect.

[0042] 2. The sleeve hole 3a of the rubber block pressure plate 3 and the protrusion 2b of the waterproof rubber block 2 form an interference fit (that is, the diameter of the sleeve hole 3a of the rubber block pressure plate 3 is slightly smaller than the diameter of the protrusion 2b), so that the protrusion 2b is squeezed by the rubber block pressure plate 3 and produces radial contraction, which drives the protrusion 2b to squeeze the cable 5 radially, thereby holding the cable 5 tightly and forming a good sealing and waterproof effect.

[0043] 3. When shipping the product, the main unit and the cable assembly (cable with plug 5 + waterproof adhesive block 3 + adhesive block pressure plate 3) are separated into two parts, which can be assembled by the user. Therefore, the size of the packaging box can be reduced, achieving the purpose of energy saving, consumption reduction, and low carbon environmental protection.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," 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. In this utility model, it should also be noted that the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, integral molding connection, mechanical connection, or indirect connection through intermediate connecting parts. The specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waterproof power meter, characterized in that, Includes the main unit and a detachable cable assembly; The main unit includes a watch case (1) and a circuit board (7) with a socket (6) installed inside the watch case (1). The back side of the watch case (1) is a rear housing (1a). The rear housing (1a) is provided with a plug-in groove (1b). The bottom of the plug-in groove (1b) has a through hole that communicates with the inner cavity of the watch case (1) and allows a cable (5) to pass through. The cable assembly includes a waterproof adhesive block (2), an adhesive block pressure plate (3), and a cable (5) with a plug. The waterproof adhesive block (2) is detachably inserted into a plug groove (1b) and is interference-fitted with the plug groove (1b). The adhesive block pressure plate (3) is detachably fixed to the rear housing (1a) and presses the waterproof adhesive block (2) into the plug groove (1b). The waterproof adhesive block (2) is provided with a through hole (2a). The cable (5) passes through the through hole (2a) of the waterproof adhesive block (2) and the plug of the cable (5) is inserted into the socket (6).

2. A waterproof power meter according to claim 1, characterized in that, The waterproof adhesive block (2) includes an outwardly protruding protrusion (2b), the adhesive block pressure plate (3) is provided with a sleeve hole (3a), the protrusion (2b) passes through the sleeve hole (3a), and the fitting hole (2a) passes through the protrusion (2b) along the length of the protrusion.

3. A waterproof power meter according to claim 2, characterized in that, The protrusion (2b) is inserted into the matching hole (3a) with an interference fit.

4. A waterproof power meter according to claim 2, characterized in that, The waterproof adhesive block (2) also includes an insert block (2c) integrally formed with the protrusion (2b). The insert block (2c) is detachably inserted into the insertion groove (1b) and is interference-fitted with the insertion groove (1b). The through hole (2a) passes through the insert block (2c). The adhesive block pressure plate (3) presses the insert block (2c) into the insertion groove (1b).

5. A waterproof power meter according to claim 4, characterized in that, The insert (2c) has multiple ribs (2d) protruding from the surface of the bottom of the insertion groove (1b). Under the pressure of the rubber block pressure plate (3), the ribs (2d) of the insert (2c) make pressure contact with the surface of the bottom of the insertion groove (1b) and deform.

6. A waterproof power meter according to claim 4, characterized in that, The outer wall of the plug (2c) and the inner wall of the plug groove (1b) form an interference fit along the radial direction of the cable (5).

7. A waterproof power meter according to claim 4, characterized in that, Two locking slots (1c) based on the recessed outer wall of the rear housing (1a) are provided at the edge of the insertion slot (1b). The two locking slots (1c) are located on both sides of the edge of the insertion slot (1b), and the two locking slots (1c) are respectively inserted into the two sides of the rubber block pressure plate (3).

8. A waterproof power meter according to claim 7, characterized in that, The rubber block pressure plate (3) seals the entire insertion groove (1b), and the outer surface of the rubber block pressure plate (3) is flush with the outer wall of the rear housing (1a).

9. A waterproof power meter according to claim 7, characterized in that, The bottom of the locking groove (1c) is provided with a locking plate hole (1d). The rubber block pressure plate (3) is equipped with two pressure plate fastening screws (4). The two pressure plate fastening screws (4) pass through the rubber block pressure plate (3) and are threaded into the locking plate holes (1d) of the two locking grooves (1c) respectively, so as to lock the rubber block pressure plate (3) to the rear housing (1a).

10. A waterproof power meter according to any one of claims 1-9, characterized in that, The socket (6) and the cable (5) are staggered radially in the cable (5).

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