Connector and power battery pack test line connection device

Abstract

The utility model provides a connector and a power battery pack test line connection device, including a connector and a clamping mechanism, wherein the connector includes a first connecting rod and a second connecting rod; an arc-shaped card slot is provided inside the first connecting rod, an arc-shaped card connector matching the arc-shaped card slot is fixed outside the second connecting rod, the second connecting rod is inserted and arranged in the arc-shaped card slot of the first connecting rod, and a bayonet is provided inside one side of the second connecting rod; the clamping mechanism includes a rough positioning component, a fine positioning component, and an insulating fixing component, and two fine positioning components and insulating fixing components are provided, the top and bottom of the rough positioning component are fixed with a fine positioning component in a mirror image, and an insulating fixing component is fixed between the fine positioning components in a mirror image, and a connector is placed between the insulating fixing components. The utility model cooperates with the first connecting rod and the second connecting rod, and the arrangement of the arc-shaped card connector and the arc-shaped card slot on the second connecting rod is more conducive to the connection between the first connecting rod and the second connecting rod, and the connection and disassembly are convenient, and quick plug-in is realized. The arrangement of the arc-shaped card connector and the arc-shaped card slot increases the contact surface, thereby enhancing the overcurrent capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack testing, in particular to a connector and a power battery pack test line connecting device. Background Art

[0002] The power battery is mainly composed of four parts: power battery module, battery management system, power battery box, and auxiliary components. The power battery is a storage battery that provides power for electric vehicles. In pure electric vehicles, the power battery is the only power source for the vehicle. The level of battery power determines the mileage of the electric vehicle. There are two ways to increase the power of the power battery pack: using high-capacity battery cells and using more battery cells. Generally, the higher the battery cell capacity, the higher the cost. Therefore, optimizing the structure of the battery pack and using as many battery cells as possible have become important factors that need to be considered in the design process of vehicle manufacturers.

[0003] When testing a power battery pack, a test line is required to test currents of different sizes. The contact surface of the connector in the existing test line connection device is small, resulting in weak overcurrent capability. In addition, the connection and disassembly of the existing connector is inconvenient. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to increase the contact surface of the connecting piece while ensuring convenient connection and disassembly.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A connecting piece comprises a first connecting rod (11) and a second connecting rod (12); the first connecting rod (11) is provided with an arc-shaped slot (111) inside, the second connecting rod (12) is fixed with an arc-shaped clip (121) matching the arc-shaped slot (111) outside, the second connecting rod (12) is inserted into the arc-shaped slot (111) of the first connecting rod (11), and a clip opening (122) is provided inside one side of the second connecting rod (12).

[0007] Beneficial effect: Through the mutual cooperation of the first connecting rod and the second connecting rod, the setting of the arc-shaped clamping piece and the arc-shaped clamping groove on the second connecting rod is more conducive to the connection between the first connecting rod and the second connecting rod, and the connection and disassembly are convenient, and quick plug-in is realized. The setting of the arc-shaped clamping piece and the arc-shaped clamping groove increases the contact surface, thereby enhancing the overcurrent capacity.

[0008] Furthermore, the second connecting rod (12) is provided with a first fixing hole (123) extending through the Y-axis near the bayonet (122), and the bolt can pass through the first fixing hole (123) for fixing.

[0009] Furthermore, a second fixing hole is formed through the first connecting rod (11) away from the bayonet (122) along the Y-axis, and the bolt can pass through the second fixing hole for fastening.

[0010] Beneficial effect: Through the provision of bolts and fixing holes, the test wires can be fixed in each connecting rod.

[0011] The utility model also discloses a power battery pack test line connection device comprising a connector as described in any of the above technical solutions, and also comprises a clamping mechanism (2), wherein the clamping mechanism (2) comprises a coarse positioning component (21), a fine positioning component (22), and an insulating fixing component (23), wherein two of the fine positioning components (22) and the insulating fixing component (23) are provided, the fine positioning component (22) is fixed to the top and bottom of the coarse positioning component (21) in a mirror-like manner, the insulating fixing component (23) is fixed to the fine positioning component (22) in a mirror-like manner, and the connector (1) is placed between the insulating fixing components (23).

[0012] Beneficial effect: Through the mutual cooperation of the coarse positioning component, the fine positioning component and the insulating fixing part, the coarse positioning component and the fine positioning component can double-position and fix the connector through the insulating fixing part, making it convenient for subsequent users to hold the coarse positioning component and operate the connector when powered on.

[0013] Furthermore, the coarse positioning component (21) comprises a connecting plate (211), a first hand-holding member (212), and a second hand-holding member (213); the connecting plate (211) is provided with two, which are arranged opposite to each other up and down; the first hand-holding member (212) is provided with two groups, each group of the first hand-holding member (212) is arranged opposite to each other up and down; the second hand-holding member (213) is provided with a plurality of members, which are arranged in a left-right arrangement; the second hand-holding member (213) is provided between the two groups of the first hand-holding members (212); the free ends of the first hand-holding members (212) are fixed on the connecting plate (211), and the first hand-holding member (212) and the second hand-holding member (213) are movably connected.

[0014] Furthermore, the first handholding members (212) are all threadedly connected inside the second handholding members (213).

[0015] Beneficial effect: By threading the first hand support into the second hand support, the relative working distance between the two insulating fixing members can be preliminarily adjusted, and then the fixing range of the connecting member can be adjusted.

[0016] Furthermore, each group of the first handholding members (212) is provided with two first handholding members (212) on the left and right, and each group of the second handholding members (213) is provided with two first handholding members (213), which are arranged opposite to each other on the left and right.

[0017] Furthermore, the precise positioning components (22) are respectively fixed on the inner sides of the upper and lower connecting plates (211).

[0018] Furthermore, the upper precision positioning component (22) comprises a connecting tube (221), a spring (222), a limiting rod (223), a locking block (224), a guide rod (225), and a dial handle (226). The connecting tube (221) is fixed with a spring (222), a limiting rod (223), and a guide rod (225) in sequence from top to bottom. The limiting rod (223) is arranged to penetrate the connecting tube (221) along the X-axis. A first guide groove is provided at each of the connecting tubes (223); the guide rod (225) penetrates through the bottom wall of the connecting tube (221) and extends out to be fixed to the insulating fixing member (23); a lever (226) is fixed on the guide rod (225); the lever (226) penetrates through the side wall of the connecting tube (221) and extends out; a second guide groove is provided on the side wall of the connecting tube (221) near the lever (226); the locking block (224) can lock the limiting rod (223).

[0019] Beneficial effect: Through the mutual cooperation of the connecting tube, spring, limit rod, locking block, guide rod and dial hand, the dial hand can be moved up and down to drive the limit rod and guide rod to move up and down to finely adjust the relative working distance between the two insulating fixings, so that the two insulating fixings can fix the connecting piece.

[0020] Furthermore, the locking block (224) is a nut, and the limiting rod (223) is provided with an external thread that matches the nut.

[0021] The advantages of the utility model are:

[0022] The utility model cooperates with the first connecting rod and the second connecting rod. The arrangement of the arc-shaped clamping piece and the arc-shaped clamping groove on the second connecting rod is more conducive to the connection between the first connecting rod and the second connecting rod. The connection and disassembly are convenient and quick connection is achieved. The arrangement of the arc-shaped clamping piece and the arc-shaped clamping groove increases the contact surface, thereby enhancing the overcurrent capacity.

[0023] The utility model can fix the test wire in each connecting rod by arranging the bolts and the fixing holes.

[0024] The utility model cooperates with each other through the coarse positioning component, the fine positioning component and the insulating fixing component. The coarse positioning component and the fine positioning component can double-position and fix the connecting component through the insulating fixing component, which is convenient for subsequent users to operate the connecting component by holding the coarse positioning component in the power-on state.

[0025] The utility model can preliminarily adjust the relative working distance between two insulating fixing members by threading the first handholding member into the second handholding member, thereby adjusting the fixing range of the connecting member.

[0026] The utility model can precisely adjust the relative working distance between the two insulating fixing parts by moving the handle up and down to drive the limiting rod and the guide rod to move up and down through the mutual cooperation of the connecting tube, the spring, the limiting rod, the locking block, the guide rod and the dial hand, so that the two insulating fixing parts can fix the connecting part. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an assembly diagram of a power battery pack test line connection device according to a first embodiment of the utility model;

[0028] Figure 2 This is a three-dimensional diagram of a connector in a power battery pack test line connection device according to a first embodiment of the utility model;

[0029] Figure 3 This is a three-dimensional diagram of a first connecting rod in a power battery pack test line connecting device according to a first embodiment of the utility model;

[0030] Figure 4 This is a three-dimensional diagram of a second connecting rod in a power battery pack test line connecting device according to a first embodiment of the utility model;

[0031] Figure 5 This is a front view of the clamping mechanism in the power battery pack test line connection device according to the first embodiment of the utility model;

[0032] Figure 6 for Figure 5 A is an enlarged view of the middle image. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Embodiment 1

[0035] like Figure 1 As shown, this embodiment provides a power battery pack test line connection device, including a connector 1 and a clamping mechanism 2.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the connecting member 1 includes a first connecting rod 11 and a second connecting rod 12. The first connecting rod 11 is provided with an arc-shaped slot 111, and the second connecting rod 12 is fixed with an arc-shaped clip 121 matching the arc-shaped slot 111 on the outside. The second connecting rod 12 is inserted into the arc-shaped slot 111 of the first connecting rod 11, and a bayonet 122 is provided inside one side of the second connecting rod 12. Two test lines (not shown) are provided, one is fixed in the bayonet 122, and the other is fixed in the arc-shaped slot 111. The second connecting rod 12 is inserted into the first connecting rod 11. Two test wires are arranged opposite to each other in the rod 11, and the two test wires can be connected by plugging the second connecting rod 12 and the first connecting rod 11; the second connecting rod 12 is inserted into the arc-shaped slot 111, and the second connecting rod 12 is rotated. The arc-shaped clamping piece 121 on the second connecting rod 12 and the arc-shaped slot 111 are arranged to facilitate the connection between the first connecting rod 11 and the second connecting rod 12, and the connection and disassembly are convenient, and quick plugging and unplugging are realized. The arrangement of the arc-shaped clamping piece 121 and the arc-shaped slot 111 increases the contact surface, thereby enhancing the overcurrent capacity;

[0037] like Figure 4 As shown, the test line (not shown) is fixed to each connecting rod by welding or bolt clamping. In the example of this embodiment, the second connecting rod 12 is provided with a first fixing hole 123 along the Y-axis near the bayonet 122. The test line is inserted into the bayonet 122 and then bolted through the first fixing hole 123 to fix the test line; the first connecting rod 11 is provided with a second fixing hole (not shown) along the Y-axis away from the bayonet 122. The test line is inserted into the arc-shaped slot 111 and then bolted through the second fixing hole to fix the test line.

[0038] like Figure 1 , Figure 5 As shown, the clamping mechanism 2 includes a coarse positioning component 21, a fine positioning component 22, and an insulating fixing member 23. Two of the fine positioning components 22 and the insulating fixing member 23 are provided. The fine positioning components 22 are fixed to the top and bottom of the coarse positioning component 21 in a mirror image, and the insulating fixing member 23 is fixed to the fine positioning components 22 in a mirror image.

[0039] like Figure 1 , Figure 5As shown, the rough positioning component 21 includes a connecting plate 211, a first hand-holding member 212, and a second hand-holding member 213. The connecting plate 211 is provided with two, which are arranged opposite to each other up and down; the first hand-holding member 212 is provided with two groups, each group of first hand-holding members 212 is arranged opposite to each other up and down, and each group of first hand-holding members 212 is provided with two on the left and right; the second hand-holding member 213 is provided with two, which are arranged opposite to each other on the left and right, and the second hand-holding member 213 is arranged between the two groups of first hand-holding members 212; one end of the first hand-holding member 212 is fixed on the connecting plate 211, and the other end of the first hand-holding member 212 is threadedly connected to the second hand-holding member 213; the second hand-holding member 213 can be held to operate the connecting member 1 in the power-on state, and the first hand-holding member 212 and the second hand-holding member 213 are convenient for adjusting the distance between the two connecting plates 211 under the action of the threaded connection, so as to facilitate the preliminary adjustment of the relative working distance between the two insulating fixing members 23, so as to facilitate the adjustment of the fixing range of the connecting member 1;

[0040] like Figure 5 , Figure 6 As shown, the precision positioning component 22 is respectively fixed on the inner sides of the upper and lower connecting plates 211; taking the upper precision positioning component 22 as an example, the precision positioning component 22 includes a connecting tube 221, a spring 222, a limiting rod 223, a locking block 224, a guide rod 225, and a dial handle 226. The top of the connecting tube 221 is fixed on the connecting plate 211, and the spring 222, the limiting rod 223, and the guide rod 225 are fixed in the connecting tube 221 from top to bottom. The limiting rod 223 is arranged along the X-axis to penetrate the connecting tube 221. First guide grooves (not shown) are opened on both sides of the connecting tube 221 near the limiting rod 223. The connecting tube 221 can move up and down in the first guide grooves. The guide rod 22 The guide rod 225 extends through the bottom wall of the connecting tube 221 and is fixed to the insulating fixing member 23; a lever 226 is fixed on the guide rod 225, and the lever 226 extends through the side wall of the connecting tube 221. A second guide groove (not shown) is provided on the side wall of the connecting tube 221 near the lever 226. The lever 226 can move up and down in the second guide groove. The lever 226 can drive the limiting rod 223 and the guide rod 225 to move up and down to finely adjust the relative working distance between the two insulating fixing members 23. After the adjustment is in place, the limiting rod 223 is locked by the locking block 224. In this embodiment, the locking block 224 is a nut, and the limiting rod 223 is provided with an external thread that matches the nut.

[0041] When in use, the distance between the two connecting plates 211 is adjusted by the first hand holding member 212 and the second hand holding member 213 under the action of the threaded connection, and then the relative working distance between the two insulating fixing members 23 is preliminarily adjusted, and then the fixing range of the connecting member 1 is adjusted; then the dial hand 226 is moved up and down to drive the limit rod 223 and the guide rod 225 to move up and down to finely adjust the relative working distance between the two insulating fixing members 23, so that the two insulating fixing members 23 fix the connecting member 1; it is convenient for subsequent users to hold the second hand holding member 213 to operate the connecting member 1 when the power is on.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A connector, characterized in that: It comprises a first connecting rod (11) and a second connecting rod (12); The first connecting rod (11) is provided with an arc-shaped slot (111) inside, and an arc-shaped clamping piece (121) matching the arc-shaped slot (111) is fixed outside the second connecting rod (12). The second connecting rod (12) is inserted into the arc-shaped slot (111) of the first connecting rod (11), and a bayonet (122) is provided inside one side of the second connecting rod (12).

2. A connector according to claim 1, characterized in that: The second connecting rod (12) is provided with a first fixing hole (123) extending through the Y-axis near the bayonet (122), and a bolt can be passed through the first fixing hole (123) for fixing.

3. A connector according to claim 1, characterized in that: A second fixing hole is formed through the first connecting rod (11) at a position away from the bayonet (122) along the Y-axis, and a bolt can be passed through the second fixing hole for fixing.

4. A power battery pack test line connection device comprising the connector according to any one of claims 1 to 3, characterized in that: The invention also comprises a clamping mechanism (2), wherein the clamping mechanism (2) comprises a coarse positioning component (21), a fine positioning component (22), and an insulating fixing component (23), wherein two of the fine positioning components (22) and two of the insulating fixing components (23) are provided, the fine positioning component (22) is fixed to the top and bottom of the coarse positioning component (21) in a mirror-like manner, the insulating fixing component (23) is fixed to the top and bottom of the fine positioning component (21) in a mirror-like manner, and the connecting component (1) is placed between the insulating fixing components (23).

5. A power battery pack test line connection device according to claim 4, characterized in that: The rough positioning component (21) comprises a connecting plate (211), a first hand-holding member (212), and a second hand-holding member (213). The connecting plates (211) are provided with two and are arranged opposite to each other up and down; the first hand-holding member (212) is provided with two groups, each group of the first hand-holding member (212) is arranged opposite to each other up and down; the second hand-holding member (213) is provided with a plurality of members arranged in a left-right arrangement; the second hand-holding member (213) is arranged between the two groups of the first hand-holding members (212); the free ends of the first hand-holding members (212) are fixed on the connecting plate (211), and the first hand-holding member (212) and the second hand-holding member (213) are movably connected.

6. A power battery pack test line connection device according to claim 5, characterized in that: The first handholding members (212) are all threadedly connected in the second handholding members (213).

7. A power battery pack test line connection device according to claim 5, characterized in that: Each group of the first handholding members (212) is provided with two first handholding members (212) on the left and right, and each group of the second handholding members (213) is provided with two first handholding members (213) which are arranged opposite to each other on the left and right.

8. A power battery pack test line connection device according to claim 5, characterized in that: The precise positioning components (22) are respectively fixed on the inner sides of the upper and lower connecting plates (211).

9. A power battery pack test line connection device according to claim 4, characterized in that: The precision positioning component (22) at the top comprises a connecting tube (221), a spring (222), a limiting rod (223), a locking block (224), a guide rod (225), and a dial handle (226). The connecting tube (221) is fixed with a spring (222), a limiting rod (223), and a guide rod (225) in sequence from top to bottom. The limiting rod (223) is arranged to penetrate the connecting tube (221) along the X-axis. The connecting tube (221) is provided with a plurality of connecting rods (223) on both sides thereof. A first guide groove is provided at each of the connecting tubes (23); the guide rod (225) penetrates through the bottom wall of the connecting tube (221) and extends out to be fixed to the insulating fixing member (23); a lever (226) is fixed on the guide rod (225), the lever (226) penetrates through the side wall of the connecting tube (221) and extends out; a second guide groove is provided on the side wall of the connecting tube (221) near the lever (226), and the locking block (224) can lock the limiting rod (223).

10. A power battery pack test line connection device according to claim 9, characterized in that: The locking block (224) is a nut, and the limiting rod (223) is provided with an external thread matching the nut.

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